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No New FX Processor From AMD in 2013

AMD's FX "Vishera" socket AM3+ processors are in for a long haul. According to a DonanimHaber report based on a leaked company roadmap slide, the company plans no new processor architecture to succeed it in 2013. The company recently launched its FX "Vishera" line of eight-, six-, and four-core chips just an year following FX "Zambezi," leading analysts to believe the company would launch a new micro-architecture each year to keep up with Intel's "tick-tock" product development strategy.

The roadmap slide, pictured below, shows AMD FX "Vishera" continuing through 2013 as the flagship desktop platform, followed by "Richland" third-generation desktop APU, which combines "Piledriver" CPU components with "Radeon 2.0 cores" (we're guessing those are Graphics CoreNext stream processors), which maintains socket FM2 platform; and low-power "Kabini" APU, which carries the mantle from "Brazos."


Source: DonanimHaber

AMD "Vishera" FX-Series CPU Specifications Confirmed

A leaked AMD document for retail partners spelled out specifications of the first three FX "Vishera" processors by AMD. The new CPUs incorporate AMD's "Piledriver" architecture, and much like the first-generation "Zambezi" chips, will launch as one each of eight-core, six-core, and four-core chips. The eight-core FX-8350 is confirmed to ship with 4.00 GHz nominal clock speed, with 4.20 GHz TurboCore speed. The six-core FX-6300 ships with 3.50 GHz nominal, and 4.10 GHz TurboCore speed. The quad-core FX-4320, on the other hand, ships with the same clock speeds as the FX-8350. In addition, the document confirmed clock speeds of several socket FM2 A-series APUs, such as the A10-5700 and the A8-5500.

Source: Expreview

Chaintech Partners with Colorful, Displays High-End Motherboards

As promised, Walton-Chaintech made a comeback to the PC motherboard and graphics card markets, by partnering with Colorful. The duo launched a full-fledged lineup of motherboards across various sockets (including LGA1155, AM3+, FM2), and graphics cards. Leading the lineup on the motherboard front are the Z77 X5 and X990FX X7.

Based on the Intel Z77 chipset, supporting the Core "Ivy Bridge" and "Sandy Bridge" processors, the Z77 X5 makes use of the entire feature-set of the platform. The LGA1155 socket is powered by a 8-phase VRM with special branding "Smart Power Engine 3," which gives user. fine control over the VRM via BIOS. Expansion slots include two each of PCI-Express 3.0 x16 (red, x8/x8, when both are populated), PCI-Express 2.0 x1, and legacy PCI. AMD CrossFireX is the only multi-GPU technology supported. 8-channel HD audio, 802.11 b/g/n, gigabit Ethernet, 2x SATA 6 Gb/s + 4x SATA 3 Gb/s, are among its features.

Three New, 95 W AMD FX Series Processors Coming Up

Before the end of this quarter AMD is set to introduce a bunch of fresh FX Series chips, including three boasting a 95 W TDP, the FX-4150 quad-core, the FX-6120 hexa-core and the FX-8140 octo-core.

The FX-4150 features a base clock of 3.9 GHz (4.1 GHz Turbo) and 12 MB of cache (4 MB L2 + 8 MB L3) while the FX-6120 has its cores set to 3.5 GHz (4.1 GHz Turbo) and packs 14 MB of cache. As for the FX-8140, it's clocked at 3.2 GHz (4.1 GHz) and has 16 MB of cache. All three models have an AM3+ package and are made using 32 nm process technology. No word on pricing yet.

Source: DonanimHaber

AMD Vishera Packs Quad-Channel DDR3 IMC, G34 En Route Desktop?

AMD might be a little sore that its "Zambezi" FX processor family based on its much-hyped "Bulldozer" architecture didn't quite meet the performance expectations of a ground-up new CPU architecture, but it doesn't want to take chances and build hype around the architecture that succeeds it. From various sources, some faintly-reliable, we have been hearing that the next-generation of high-performance desktop processors based on "Piledriver" architecture, codenamed "Vishera", will pack five modules or 10 cores, and will be structured essentially like Zambezi, since Piledriver is basically a refinement of Bulldozer architecture. The latest leak comes from the Software Optimization Guide for AMD 15h family (read here), which was picked up by CPU World while most of us were busy with CES.

CPU World compiled most of the features of what it suspected to be AMD referring to its future processors based on the Piledriver architecture, that's "Vishera" (desktop high-performance), "Terramar" (high-density server), and "Sepang" (small-medium business server) parts. The three are not the first chips to be based on Piledriver, AMD has a new mainstream desktop and notebook APU in the works codenamed "Trinity", which is en route for a little later this year. Trinity basically has an identical CPUID instruction-set as Vishera, Terramar, and Sepang, confirming their common lineage compared to today's "Bulldozer" architecture. The most catchy detail is of Vishera featuring 4 DDR3 channels.

'Locked' AMD Zambezi Silicon Being Branded As New Phenom II Line

Besides the fact that they are carved out of the same piece of silicon by disabling components, all AMD FX series processors, from the quad-core FX-4000 series, to the eight-core FX-8000 series have one thing in common: they're all "unlocked", meaning they have an upwards-unlocked base-clock multiplier, which makes overclocking them a whole lot easier. Take that away and what do you get? A new Phenom II processor line. That's right, it is learned that AMD has a new line of Phenom II processors, eight-core for now, that are being carved out of the 32 nm Zambezi silicon.

Intuitively branded within the new Phenom II X8 and existing Phenom II X6 markers, these chips feature relatively lower clock speeds, meaning they will be priced low, competitive with Intel's sub-$200 Core i3 and Core i5 processors. AMD will also tinker with Zambezi's caches. The new chips came to light when some motherboard manufacturers leaked them on CPU support lists of certain motherboards, on their websites. For now we're getting to hear about two eight-core models, the 2.40 GHz Phenom II X8 2420, and 3.00 GHz Phenom II X8 3020; and two six-core models, the 2.50 GHz Phenom II X6 2520, and 2.80 GHz Phenom II X6 2820. Relevant details are tabled below. It beats us why AMD didn't take the opportunity (new silicon) to label these "Phenom III".

Source: Inpai.com.cn

Bulldozer Aims For 50% Improvement By 2014: Is This Really Enough To Counter Intel?

The reviews are now out for AMD's brand new Bulldozer architecture, in the form of the Zambezi FX 8120 & FX 8150 processors and they don't paint a pretty picture of these flagship products. The chips use lots of power, run hot and significantly underperform compared to their Intel competition. On top of that, they are being marketed as 8 core processors, when they are actually 4 core with an advanced form of multi-threading, due to the siamesed nature of each dual processor module. Perhaps to counter this negative publicity and try to restore some faith in the AMD brand, they have released a roadmap for the planned improvements to the architecture, all the way to 2014 – an ambitious timeline, given how much and how unexpectedly things can change at the cutting edge of the technology world.

Vishera and Trinity to Take Over AMD Processor Lineup in 3Q 2012

The latest AMD 2012 market outlook slides disclosed by DonanimHaber reveal that AMD will have a brand new lineup of processors and APUs by the third quarter of 2012. In the second quarter, AMD will begin with new accelerated processing units (APUs) that succeed the current A-Series "Llano" APUs, codenamed "Trinity". Trinity APUs will make use of next-generation "Piledriver" architecture x86-64 cores, as well, as next-generation Radeon HD 7000 series graphics.

Then in the third quarter, AMD will release its next-generation "Vishera" processors that succeed "Zambezi" AMD FX processors. Vishera will make use of next-generation "Piledriver" modules, and increase IPC (instructions per clock) beyond its predecessor "Bulldozer" architecture. In the interim, AMD will update its A-Series and AMD FX processor lines with new models. These include a new high-end processor, the AMD FX-8170, and two new A-Series APUs, the A8-3870K, and A6-3670K, both of which are unlocked for overclocking.
Source: DonanimHaber 1, 2

FX-Series Processors Clock Speeds 'Revealed'

On several earlier articles like this one, we were versed with the model numbers and even possible prices of AMD's next-generation FX series desktop processors, but the clock speeds stayed under the wraps, that's until a table listing them out was leaked. AMD's FX-series consists of eight-core FX-81xx parts, six-core FX-61xx, and quad-core FX-41xx parts, probably harvested out of the Zambezi silicon by disabling modules (groups of two cores closely interconnected with some shared resources). Most, if not all, FX series chips have unlocked multipliers, making it a breeze to overclock them. All chips come in the AM3+ package, feature 8 MB of L3 cache, and 2 MB L2 cache per module.

Leading the pack is FX-8150, with a clock speed of 3.6 GHz, and TurboCore speed of 4.2 GHz, a 500 MHz boost. The next chip, FX-8120, has a boost of close to a GHz, it has a clock speed of 3.1 GHz, that goes all the way up to 4 GHz with TurboCore. This will be available in 125W and 95W TDP variants. Next up is the FX-8100, with 2.8 GHz clock speed, that goes up to 3.7 GHz, another 900 MHz boost. The scene shifts to 6-core chips, with FX-6120, no clock speed numbers were given out for this one. FX-6100, on the other hand, is clocked at 3.3 GHz, with 3.9 GHz Turbo. The FX-4100 is the only quad-core part with clock speeds given out by this source: 3.6 GHz, with a tiny 200 MHz boost to 3.8 GHz. You can see that there is no pattern in the turbo speed amounts specific to models, and hence we ask you to take these with a pinch of salt.


Source: DonanimHaber

AMD FX 8 Core and 4 Core Processor Systems Seen Running at E3

At the Electronic Entertainment Expo (E3) 2011, AMD made its revival of the FX brand identifier official. The company steered clear of actually launching anything, but reran the audience through the AMD Bulldozer architecture, something AMD first did way back in August 2010 (yeah, it's been that long!). Knowing the audience needed a lot more than just that, AMD ran live demos of gaming PCs running the new FX series processors, again, without giving away any performance figures.

AMD first showed the final box art design. The box of the eight-core FX Black Edition processor is a classy metal canister, while the quad-core FX chip is housed in a more common-looking paperboard box, the design of which matches the one revealed in a box-art exposé back in March. The gaming rigs shown run the eight-core FX processor on an ASUS Crosshair V Formula motherboard, with Radeon HD 6900 series graphics, with an Eyefinity display setup.

AMD Reintroduces FX Brand for High-End Processors and Platforms at E3

AMD today reintroduced the FX brand for PC processors and platforms at the Electronic Entertainment Expo (E3). FX-branded products will be geared toward enthusiast PCs and HD entertainment aficionados. AMD also announced new members for its "Gaming Evolved" program, driving the PC gaming experience forward with native HD3D support in Eidos Montreal's "Deus Ex: Human Revolution," and new collaborations with Bioware, Creative Assembly and Codemasters.

The FX brand is associated with AMD's fastest processors and most powerful platforms -- those designed for unrestrained PC performance for the ultimate gaming and HD entertainment experiences. In addition, these processors and platforms drive rich visuals for graphics-intensive applications and high-resolution AMD Eyefinity multi-monitor configurations. The first platform to earn the FX title, the "Scorpius" platform, will feature the now-available AMD 9-series chipset motherboards and AMD Radeon HD 6000 Series graphics cards, plus the upcoming "Zambezi" unlocked, native eight-core processor.

AMD Paves the Way for the Next Gen. of Supercharged Desktop PCs with 9-Series Chipset

AMD today launched its 9-Series chipset line-up today, helping PC builders to develop next generation high performance desktop platforms. The company also unveiled its 2011 HD Tablet Platform, based on the AMD Z-Series Accelerated Processing Unit (APU), enabling vivid media display and content creation capabilities for the fast-growing market of Microsoft Windows-based tablets. These new AMD products are designed to enable more immersive digital experiences for the PC and tablet markets.

“As consumer appetites for more compelling, lifelike visual experiences increase, there is greater need for high performance, smooth, vibrant graphics as well as unparalleled computing power,” said John Taylor, product marketing director, AMD. “From tablets to desktops, AMD is making powerful computing accessible to everyone.”

AMD Bulldozer, Llano Pricing Surface

Here are the first figures made public of the market prices of AMD's upcoming two lines of desktop processors. AMD will approach the desktop PC market with two platforms, the A-Series "Llano" accelerated processing units (APUs), and the FX-series "Zambezi" processors (CPUs). APUs are functionally similar to Intel's Sandy Bridge processors, in having processor cores, a graphics processor, memory controller, and PCI-Express switch packed into a single piece of silicon. AMD is apparently relying on its powerful GPU architecture to make Llano a more wholesome product. Zambezi functionally resembles Intel Westmere/Bloomfield, in having a number of processing cores, a high-bandwidth memory controller, and a large cache packed into a single die, making up for a performance part.

By mid-June, AMD will launch the FX-Series with two a 4-core, a 6-core, and two 8-core parts. The series will be led by eight-core AMD FX-8130P priced at US $320, trailed by FX-8130 at US $290. The former probably is a "unlocked" part. Next up is the six-core FX-6110, priced at $240. Lastly there's the quad-core FX-4110, going for $220. You will notice that the price per core isn't as linear as it was in the previous generation.

ASUS M5A99X EVO Motherboard Pictured

Here is the first picture of the M5A99X EVO, an upcoming socket AM3+ motherboard by ASUS based on the AMD 990X + SB950 chipset designed AMD's FX-Series "Zambezi" 8-core, 6-core, and 4-core procesors. The AMD 990X is designed for discrete graphics with up to two graphics cards in CrossFireX. It is likely that the final iteration has NVIDIA SLI support out of the box. The AM3+ Black socket is powered by 8-phase Digi+ VRM, cooled by a large heatsink that sits next to the northbridge heatsink. ASUS came up with a new heatsink design theme. While the P8P67 series uses heatsinks with curvy/wavy fins, the M5A series uses sharp edges.

The AMD 990X northbridge gives out 16 PCI-Express 2.1 lanes split between two x16 slots. When both slots are populated, the graphics cards run on x8 bandwidth. The third black x16 slot is wired to the SB950 southbridge, and is likely x4. Other slots include two PCI-Express x1 and a PCI. Storage connectivity includes six SATA 6 Gb/s ports from the SB950 southbridge that support RAID 0, 1, 0+1, 5, 10 modes; a third-party controller drives two additional SATA 6 Gb/s internal ports. We don't know if there's another such controller handling eSATA.

AMD A-Series APU and FX-Series CPU Launch Schedule Detailed

AMD charted out the launch itinerary of its two upcoming client product lines, the A-Series "Llano" accelerated processing unit (APU), and the FX-Series "Zambezi" processor, in a presentation slide to its launch partners. The series of product launches starts at the upcoming Computex 2011 event, on June 1, where AMD will launch its new 9-series chipset. This could include two branches: first being the 2-chip chipset that drives Zambezi FX-series processors; and a second single-chip chipset for APUs. The action then shifts to E3 (Electronic Entertainment Expo) a week after Computex. On June 7, AMD will unveil the AM3+ platform, and motherboard vendors across the board are expected to show off their AM3+ motherboards

On 12th June AMD's Llano APU and Sabine platform will be launched for the Asian markets. Around the same time, at the AMD Fusion Developer Summit, AMD will interact with developers to develop software that's tailor made for the Fusion architecture (x86 with increased use of serial computational loads over GPGPU). June 14 2011 is the most important date. Called the AMD 2011 Client Launch Event, this event will be the launchpad for AMD's FX-series processors and A-Series APUs. Sabine platform will launched to the rest of the world's markets.

Source: DonanimHaber

ASRock Uses ''Real'' AM3+ Sockets, Lists Out Advantages Over AM3

ASRock launched a new marketing campaign for its AMD platform motherboards, claiming to be the first manufacturer to be out with motherboards that use real AM3+ sockets. AM3+ is the FCPGA socket that has been designed for upcoming AMD FX series "Zambezi" processors based on the "Bulldozer" architecture. As a part of its campaign, ASRock highlighted the benefits of opting for its AM3+ motherboards. In the process, it ended up disclosing quite some technical information about AM3+, and why AMD designed it in the first place, when apparently AM3 can run Zambezi with a BIOS update.

To begin with, ASRock started with the socket itself, showing that AM3+ sockets can be identified by "AM3b" written on the socket, and have wider pin-holes (0.51 mm vs. 0.45 mm of AM3). It is possible that future (retail?) versions of the CPU, if not the engineering samples doing rounds, could use packages with thicker pins that are incompatible with AM3. The thicker pins add durability, and are designed for a different set of electrical specifications.

AMD FX Zambezi Processors Compatible with ASUS AM3 Motherboards Using BIOS Update

AMD's upcoming FX series "Zambezi" desktop processors based on the "Bulldozer architecture are also expected to bring with them compatible motherboards, as AMD, on a number of occassions, stated that the chips will require a new socket (referred to as AM3+) and compatible chipset, and that the chips will be incompatible with existing AM3 socket and existing chipset. Information available with SweClockers points to the contrary.

According to the source, motherboard major ASUS is planning to provide support to AM3+ processors to some of its existing AM3 motherboards using mere BIOS updates. That's right, Zambezi will indeed be backwards compatible with AM3 and existing chipset, only what remains to be seen is if the processors will perform to their full potential and overclock well on existing platform. Amongst ASUS' Schindler's list are top of the line AM3 models, such as ROG Crosshair IV Formula and Extreme, M4A89TD PRO/USB3, and even AMD 890GX-based motherboards such as M4A89GTD PRO. The list also shows certain AM3+ motherboards that use dated chipsets such as 760G, probably the entry-level of ASUS' M5A series of motherboards.

Source: SweClockers

AMD FX ''Zambezi'' Processor Box-Art Revealed

Here are the first box-shots of AMD's upcoming series of high-end desktop processors, under the FX series, referred to as "Zambezi" by the company, internally. Zambezi is based on AMD's newest Bulldozer architecture that improves instruction per clock-cycle (IPC), and packs the latest industry standard instruction sets. As stated in an older article, AMD will not assign a brand-name (such as Phenom or Athlon) to name its high-end desktop processors, but will instead refer to them as "FX" processors. To that extent, the processors will even feature a logo that resembles that of AMD Radeon to a very large extant.

AMD designed two iterations of box-art each for its FX eight-core and FX quad-core processors, puictured below. The processors look to be shipping in cuboidal paperboard boxes, very much like AMD's processors already do. The art looks very "energetic" and makes use of the AMD "arrow" motif pointing in the top-right direction. The background in each iteration is distinct, one shows splashes of red (eight-core) or orange (quad-core), the other shows flow of red/orange. It's interesting to note that all boxes denote Black Edition with its unlocked bus multiplier feature, leading us to speculate that unlocked multiplier could be standard issue with FX series processors. Also shown is the second generation TurboCore technology support, and AMD's claim to be selling the first eight-core processor [in the consumer market]. AMD's FX processors will be released to market in June.


Source: NordicHardware

ASRock Readies AM3+ 890FX Deluxe5 Motherboard

ASRock seems to be in a hurry to be out with the first socket AM3+ motherboard that supports AMD's next-generation "Zambezi" Fusion Black processors, and so again put its creativity to use. The company designing a new motherboard based on the AMD 890FX + SB850 chipset instead, called the ASRock 890FX Deluxe5. The selling point with this board is the ability to have an AM3+ as early as possible, with capability to accommodate AM3+ processors as they come. For now, ASRock's idea in the public domain is only in the form of a layout drawing.

The typically-sized ATX motherboard from ASRock makes use of AMD's 890FX + SB850 chipset. The CPU socket is compatible with existing socket AM3 Phenom II and Athlon II processors, and future Fusion Black processors. This isn't particularly an advantage, because every AM3+ motherboard in the future based on 990FX will retain support for AM3 processors. On the other hand, 990FX motherboards could also embrace UEFI, something this board seems to lack prima facie.

Bulldozer Shines in 3D Gaming and Rendering: AMD

Close to two weeks ago, reports surfaced about AMD claiming that its upcoming "Zambezi" 8-core desktop processor based on the company's new Bulldozer architecture is expected to perform 50% faster than Intel's Core i7 and its own Phenom II X6 processors. The slide forming the basis for the older report surfaced, and it's a little more than a cumulative performance estimate.

Slide #14 from AMD's Desktop Client Solutions presentation to its industry partners reveals that the company went ahead and provided a breakdown on which kinds of applications exactly does its new 8-core chip perform better compared to present-generation processors. The breakdown provides an interesting insight on the architecture itself. To begin with, AMD's 8-core Bulldozer "Zambezi" processor is 1.5X (50%) faster overall compared to Intel Core i7 "Bloomfield" 950, and AMD Phenom II X6 1100T. Breaking down that graph, the processor performs similar to the other chips in media applications, but features huge gains in gaming and 3D rendering, which is where most of its gains are coming from.

Bulldozer-Ready AMD 990FX Based MSI Big Bang Conqueror Motherboard Pictured

MSI let its latest motherboard for the AMD Zambezi platform face the lens. The Big Bang Conqueror is based on the AMD 990FX chipset, and features the latest AM3+ socket to connect to processors based on AMD's Bulldozer architecture. The first set of processors will feature 8 cores, 16 MB cache, and dual-channel DDR3 memory with default DRAM speeds to match bandwidth provided by slower triple-channel DDR3 memory on current Intel Core i7 LGA1366 processors.

The Big Bang Conqueror uses a 10-phase VRM to power the CPU. The CPU is wired to four DDR3 DIMM slots for dual-channel memory. Expansion slots include three PCI-E 2.0 x16 (electrical x16/16/NC or x16/x8/x8), one PCI-E x16 (electrical x4), two PCI-E x1, and a PCI. Storage includes six internal SATA 6 Gb/s, two eSATA. Other connectivity includes USB 3.0, gigabit Ethernet, 8-channel audio with optical and coaxial SPDIF, and FireWire. Various overclocker-friendly features are also present.

Source: Tweaktown

AMD FX Making a Comeback, to Challenge Intel Core i7 Extreme Edition

Come 2011, and AMD is looking to give Intel its much awaited fightback at all market segments of consumer processors including the enthusiast-grade models. It will be made possible with AMD's new Bulldozer architecture, which gives the processor a much higher degree of inter-core integration, sharing of common components, higher instructions per clock-cycle, and Advanced Vector Extensions (AVX). AMD's Bulldozer "Zambezi" desktop chips will be reportedly available in two ultra high-end SKUs: the 8-core AMD Vision Black FX, and performance segment AMD Vision Ultimate FX. AMD suspended the use of "FX" identifier with its Phenom and Phenom II series processors, because it couldn't compete in higher-end market segments, and didn't want to dilute the "FX" identifier. It was replaced with "Black Edition" to help identify models with unlocked BClk multipliers. AMD's Vision Black FX processors will be competitive with Intel's highest-end processors, including Extreme Edition models.

Source: DonanimHaber

Zambezi AM3+ Core Logic Slated for Q2-2011

AMD's upcoming "Bulldozer" architecture based processors that use a new socket type, the AM3+, are slated for Q2, 2011. To complement its launch, AMD will be launching the 9-series chipset series, consisting of four kinds of desktop chipset. The lineup starts with the AMD 990FX, the high-end 4-way CrossFireX-ready chipset, geared for high-end motherboards. Next up, is the 990X. This discrete graphics chipset is also ready for CrossFireX, but has just 16 PCI-Express 2.0 lanes to spare for graphics, platforms based on this will feature two PCI-Express x16 slots which reconfigure to electrical x8 slots when both are populated.

The third is an entry-level discrete graphics chipset that doesn't support CrossFire, but can spare one PCI-Express 2.0 x16 slot for discrete graphics, it's the AMD 970. Lastly, there's the 980G integrated graphics chipset, which features a DirectX 10.1 compliant IGP, which supports UVD 2.0 video acceleration. For some reason, this chipset doesn't support older AM3 processors, but only AM3+. The other chipsets in the series however, do support existing socket AM3 Athlon II and Phenom II series processors. All four northbridge chipsets support HyperTransport 3.0 processor interconnect, supporting data rates of up to 5.2 GT/s.

AMD Zambezi ''Bulldozer'' Desktop CPU Roadmap Revealed

AMD's next-generation PC processor architecture that seeks to challenge the best Intel has, codenamed "Bulldozer", is set to make its desktop PC debut in 2Q next year, with a desktop processor die codenamed "Zambezi". AMD is seeking to target all market segments, including an enthusiast-grade 8-core segment, a performance 6-core segment, and a mainstream 4-core segment. The roadmap reveals that Zambezi will make its entry with the enthusiast-grade 8-core models first, starting with 125W and 95W models, trailed by 6-core and 4-core ones.

Another couple of architectural details revealed is that Zambezi's integrated memory controller (IMC) supports DDR3-1866 MHz as its standard memory type, just like Deneb supports DDR3-1333 MHz as its standard. DDR3-1866 MHz, or PC3-14900 as it's technically known, will churn out 29.8 GB/s in dual-channel mode, that's higher than triple-channel DDR3-1066 MHz (25.6 GB/s), which is Intel Core i7 LGA1366 processors' official memory standard. The 8-core and 6-core Zambezi models feature 8 MB of L3 cache, while the 4-core ones feature 4 MB. Another tidbit you probably already knew is that existing socket AM3 processors are forwards-compatible with AM3+ (Zambezi's socket), but Zambezi processors won't work on older AM3/AM2(+) socket motherboards.

Source: ATI Forum
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