News Posts matching "Graphics CoreNext"

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AMD "Fiji" Block Diagram Revealed, Runs Cool and Quiet

AMD's upcoming flagship GPU silicon, codenamed "Fiji," which is breaking ground on new technologies, such as HBM, memory-on-package, a specialized substrate layer that connects the GPU with it, called Interposer; features a hefty feature-set. More on the "Fiji" package and its memory implementation, in our older article. Its block diagram (manufacturer-drawn graphic showing the GPU's component hierarchy), reveals a scaling up, of the company's high-end GPU launches over the past few years.

"Fiji" retains the quad Shader Engine layout of "Hawaii," but packs 16 GCN Compute Units (CUs), per Shader Engine (compared to 11 CUs per engine on Hawaii). This works out to a stream processor count of 4,096. Fiji is expected to feature a newer version of the Graphics CoreNext architecture than "Hawaii." The TMU count is proportionately increased, to 256 (compared to 176 on "Hawaii"). AMD doesn't appear to have increased the ROP count, which is still at 64. The most significant change, however, is its 4096-bit HBM memory interface, compared to 512-bit GDDR5 on "Hawaii."

Radeon R9 390X Taken Apart, PCB Reveals a Complete Re-brand

People with access to an XFX Radeon R9 390X graphics card, took it apart to take a peek at its PCB. What they uncovered comes as no surprise - the underlying PCB is identical in design to AMD reference PCB for the Radeon R9 290X, down the location of every tiny SMT component. At best, the brands on the chokes and bigger conductive polymer caps differ; and 512 Gbit GDDR5 chips under the heatspreader, making up 8 GB of the standard memory amount. The GPU itself, codenamed "Grenada," looks identical to the "Hawaii" silicon which drove the R9 290 series. It's highly unlikely that it features updated Graphics CoreNext 1.2 stream processors, as older rumors suggested.
Source: HardForum 1, 2

GFXBench Validation Confirms Stream Processor Count of Radeon Fury

Someone with access to an AMD Radeon Fury sample put it through the compute performance test of GFXBench, and submitted its score to the suite's online score database. Running on pre-launch drivers, the sample is read as simply "AMD Radeon Graphics Processor." Since a GPGPU app is aware of how many compute units (CUs) a GPU has (so it could schedule its parallel processing workloads accordingly), GFXBench was able to put out a plausible-sounding CU count of 64. Since Radeon Fury is based on Graphics CoreNext, and since each CU holds 64 stream processors, the stream processor count on the chip works out to be 4,096.


Source: VideoCardz

AMD Radeon Graphics Roadmap for 2015 Leaked

It looks like AMD's desktop discrete GPU lineup for 2015 will see a mix of rebrands, re-codename, and one big new chip, all making up the new Radeon R7 300 and R9 300 series. Cards based in this lineup should begin rolling out this month. Leaks from OEMs such as this one, suggest that the first of these should begin rolling out as early as June 16.

The spread is pretty cut and dry. "Hawaii," the chip driving the R9 290 series, will not only get a new codename as "Grenada," but also a seamless rebrand to the R9 390 series, with Grenada Pro making up the R9 390, and Grenada XT making up the R9 390X. One possibility could be AMD taking advantage of low 4 Gbit GDDR5 chip prices to cram 8 GB of standard memory amount, across Grenada's 512-bit wide memory interface. The R9 390X will compete with the GeForce GTX 970, while the R9 390 will offer an option in the vast price and performance gorge between the GTX 960 and GTX 970.

AMD "Fiji" HBM Implementation Detailed

Back in 2008, when it looked like NVIDIA owned the GPU market, and AMD seemed lagging behind on the performance and efficiency game, the company sprung a surprise. The company's RV770 silicon, the first GPU to implement GDDR5 memory, trounced NVIDIA's big and inefficient GeForce GTX 200 series, and threw AMD back in the game. GDDR5 helped the company double the memory bandwidth, with lower pin- and memory-chip counts, letting the company and its partners build graphics cards with fewer components, and earn great margins, which the company invested in development of its even better HD 5000 series, that pushed NVIDIA with its comical GeForce GTX 480, to hit its lowest ever in market-share. Could AMD be looking at a similar turnaround this summer?

Since the introduction of its Graphics CoreNext architecture in 2012, AMD has been rather laxed in its product development cycle. The company has come out with a new high-end silicon every 18-24 months, and adopted a strategy of cascading re-branding. The introduction of each new high-end silicon would relegate the existing high-end silicon to the performance segment re-branded, and the existing performance-segment silicon to mid-range, re-branded. While the company could lay out its upcoming Radeon R9 series much in the same way, with the introduction of essentially just one new silicon, "Fiji," it could just prove enough for the company. Much like RV770, "Fiji" is about to bring something that could prove to be a very big feature to the consumer graphics market, stacked high-bandwidth memory (HBM).

AMD Readies 14 nm FinFET GPUs in 2016

At its ongoing Investor Day presentation, AMD announced that will continue to make GPUs for every segment of the market. The company is planning to leverage improvements to its Graphics CoreNext architecture for the foreseeable future, but is betting on a huge performance/Watt increase with its 2016 GPUs. The secret sauce here will be the shift to 14 nm FinFET process. It's important to note here, that AMD refrained from mentioning "14 nm," but the mention of FinFET is a reliable giveaway. AMD is expecting a 2x (100%) gain in performance/Watt over its current generation of GPUs, with the shift.

AMD's future GPUs will focus on several market inflection points, such as the arrival of CPU-efficient graphics APIs such as DirectX 12 and Vulkan, Windows 10 pulling users from Windows 7, 4K Ultra HD displays getting more affordable (perhaps even mainstream), which it believes will help it sell enough GPUs to return to profitability. The company also announced an unnamed major design win, which will take shape in this quarter, and which will hit the markets in 2016.

AMD Radeon R9 380 Launched by PC OEM

Earlier this day, HP announced its newest line of desktop PCs, one of which comes with a curious-sounding Radeon R9 380 graphics card. HP's product pages for its new desktops aren't active, yet, leaving us to only speculate on what the R9 380 could be. One theory making rounds says that the R9 380 could either be a re-branded R9 285, or be based on its "Tonga" silicon, which physically features 2,048 stream processors based on Graphics CoreNext (GCN) 1.2 architecture, and a 384-bit wide GDDR5 memory interface. Another theory states that the R9 380 could be an OEM-only re-brand of the R9 280 or R9 280X, based on the 3+ year old "Tahiti" silicon.

The former theory sounds more plausible, because re-branding a "Tahiti" based product would be suicidal for AMD. Although based on GCN, "Tahiti" lacks a lot of architecture features introduced with "Hawaii" and "Tonga." AMD practically stopped optimizing games for "Tahiti," and some of its new features, such as FreeSync and XDMA CrossFire, can't be implemented on it. "Tonga," on the other hand, supports both these features, and one can create an SKU with all its 2,048 stream processors, and its full 384-bit GDDR5 memory interface unlocked. If the R9 380 is indeed an OEM-only product, then it's likely that the company's retail-channel products could be branded in the succeeding R9 400 series. GPU makers tend to re-brand and bump their SKUs by a series for OEMs to peddle in their "new" products at short notice.

AMD Cuts Prices of Radeon R9 285

As the Spring PC upgrade season heats up, AMD decided to woo mainstream gamers away from NVIDIA's GeForce GTX 960, by working with retailers in the EU to introduce price-cuts on its Radeon R9 285 graphics card. The card can now be had for under 180€ (incl taxes). The GTX 960, in comparison, starts at 192€ (incl taxes). The R9 285 offers higher performance than the GTX 960. It is, however, let down by higher power consumption and noise figures. Based on the 28 nm "Tonga" silicon, the R9 285 offers 1,792 stream processors based on AMD's Graphics CoreNext 1.2 architecture, 112 TMUs, 32 ROPs, and a 256-bit wide memory interface, holding 2 GB of memory.

Source: Hardware.fr

AMD Readying "Godavari" APUs for May Launch, 14 nm APUs in 2016

AMD is readying its next-gen APUs, codenamed "Godavari" for launch in May 2015, according to industry sources in Taiwan. A successor to "Kaveri," Godavari will feature updated "Excavator" architecture based CPU cores, and the latest Graphics CoreNext 1.2 based stream processors on the integrated GPU. The APU will feature PCI-Express gen 3.0 and high-speed DDR3 integrated memory controllers, just like its predecessor "Kaveri," and could be based on the existing FM2+ platform. These chips will compete against some of the entry/mainstream variants of Intel's Core "Broadwell" processors. It's likely that these chips could be built on existing 28 nm process.

It's also being reported that AMD will launch its first APUs based on the 14 nanometer fab process, codenamed "Summit Ridge," in 2016. These will be succeeded by "Raven Ridge" APUs in 2017. AMD could use Samsung and GlobalFoundries to make its 14 nm chips. Lastly, AMD is reportedly in talks with ASMedia to integrate its USB 3.1 controller logic into its new motherboard chipset, which it plans to launch in September 2015.Source: DigiTimes

AMD Bets on DirectX 12 for Not Just GPUs, but Also its CPUs

In an industry presentation on why the company is excited about Microsoft's upcoming DirectX 12 API, AMD revealed its most important feature that could impact on not only its graphics business, but also potentially revive its CPU business among gamers. DirectX 12 will make its debut with Windows 10, Microsoft's next big operating system, which will be given away as a free upgrade for _all_ current Windows 8 and Windows 7 users. The OS will come with a usable Start menu, and could lure gamers who stood their ground on Windows 7.

In its presentation, AMD touched upon two key features of the DirectX 12, starting with its most important, Multi-threaded command buffer recording; and Asynchronous compute scheduling/execution. A command buffer is a list of tasks for the CPU to execute, when drawing a 3D scene. There are some elements of 3D graphics that are still better suited for serial processing, and no single SIMD unit from any GPU architecture has managed to gain performance throughput parity with a modern CPU core. DirectX 11 and its predecessors are still largely single-threaded on the CPU, in the way it schedules command buffer.

AMD R9 390 Series To Launch Alongside Computex 2015

AMD is preparing to time the launch of its next-generation Radeon R9 300 series with that of Computex 2015, in early June. The company had earlier planned to launch some products that are essentially price-adjusted rebrands of existing ones, such as the R9 380 series (being rebrands of R9 290 series on a slightly improved silicon), and the R9 370 series (being based on the "Tonga" silicon); but has decided to launch the two along with its flagship R9 390 series, based on a brand new silicon, around the same time. AMD's answer to the GTX TITAN-X from NVIDIA, the R9 390X will feature around 4,096 stream processors based on the Graphics CoreNext 1.3 architecture, and will implement an HBM (high-bandwidth memory) interface, with bandwidths in excess of 600 GB/s.

Source: Kitguru

Sapphire Rolls Out Radeon R7 260X iCafe OC Graphics Card

Sapphire rolled out the entry-mid range Radeon R7 260X iCafe OC graphics card for casual-gaming PC builds (eg: low-cost Counter Strike gaming kiosks). Pictured below, the card looks rather premium, with its full-length, dual-slot cooler. That is, until you take a peek under its plastic shroud to find a cost-effective fan-heatsink cooling the GPU, with radially-projecting aluminium fins, a copper core base, and an 80 mm fan ventilating it.

The card draws power from a single 6-pin PCIe power connector; outputs include one each of dual-link DVI, HDMI 1.4a, and DisplayPort 1.2a. The card offers a factory-overclock of 1050 MHz core, and an untouched 5.00 GHz memory, against reference clocks of 1000 MHz on the core. Based on the 28 nm "Bonaire" silicon, the R7 260X offers 896 Graphics CoreNext stream processors, and a 128-bit wide GDDR5 memory interface, holding 2 GB of memory on this card. Expect a $100-ish pricing.

AMD to Launch New GPUs and APUs Only After March: CEO

In its an investor conference-call following its Q4-2014 and FY-2014 results, AMD stated that it will release new GPU and APU products starting Q2-2015, or only after March. "Going into the second quarter and the second half of the year with our new product launches, I think we feel very good about where we are positioned there," said Lisa Su, chief executive officer.

Q2-2015 will start off with the company's "Carrizo" line of all-in-one and notebook APUs. These chips will integrate the company's new "Excavator" CPU cores, with an integrated graphics core based on Graphics CoreNext 1.2 architecture (the same one AMD built its "Tonga" GPU on). Around the same time, AMD will launch new Opteron "Seattle" enterprise CPUs, which integrate up to eight ARM Cortex A-57 64-bit cores, targeting the ultra-dense server market. In Q2-2015, AMD will launch its latest Radeon Rx 300 series graphics processors. Its performance-segment part, the R9 380, will feature 4,096 GCN 1.2 cores, double that of its predecessor, and 4 GB of stacked HBM (high-bandwidth memory). Its mid-range chip, codenamed "Trinidad" will succeed "Curacao," and offer performance competitive to the $200-ish price-point.


Source: KitGuru

AMD to Switch to GlobalFoundries' 28 nm SHP Node in 2015

Faced with continuous development roadblocks with TSMC, AMD is reportedly planning to switch to the 28 nm SHP process of GlobalFoundries, to build GPUs in 2015. The 28 nm SHP (super high-performance) node will allow the company to lower voltages, giving it greater room to increase clock speeds of its upcoming GPUs. AMD's GPUs in 2015 could be based on its latest Graphics CoreNext 1.2 architecture, and AMD needs every means to minimize voltages, and crank up clock speeds.

The company hasn't abandoned TSMC completely just yet, with reports speaking of AMD using the Taiwanese fab's 16 nm FinFet node to manufacture its next-generation "Zen" CPUs. Zen is the successor to AMD's "Bulldozer" architecture and its derivatives ("Piledriver" and "Steamroller.") It could feature a radically different core design.

Source: BitsandChips.it

AMD to Give 20 nm Optical Shrinks to Console SoCs First

AMD has the unique distinction of supplying SoCs to all three leading game console vendors simultaneously - Microsoft, Sony, and Nintendo. The company, like NVIDIA, is looking forward with perched eyes for manufacturing partner TSMC to get its 20 nanometer silicon fabrication node running full-cylinders. Unlike NVIDIA, which may use the new process to shrink its GPUs, or launch bigger chips based on its "Maxwell" architecture, AMD will treat its console SoCs with optical-shrinks to the new nodes first, so the company could immediately eke out better margins, as console gamers upgrade to Xbox One or the PlayStation 4.

AMD's SoC for the Xbox One, could be the first in line for this optical shrink to 20 nm. This chip features a transistor count of 5 billion, and houses eight 64-bit x86 CPU cores, and a 768 SP GPU based on the Graphics CoreNext architecture; 48 MB of on-die cache, and a quad-channel DDR3 IMC. The chip also features an integrated core logic. AMD's chip for the PlayStation 4 features design inputs from Sony. The chip features the same CPU component, but a 1152 SP GPU, and a 256-bit wide GDDR5 memory interface, wired to 8 GB of memory that's virtualized for both system- and graphics-memory. The 20 nm shrinks of both chips are expected to lower not just manufacturing costs, but also step up energy-efficiency, which could then let Microsoft and Sony save additional costs on other components, such as power and cooling.


Source: Expreview

AMD "Tonga" Silicon Features 384-bit Wide Memory Interface

In what could explain the rather large die-size and transistor-count of AMD's "Tonga" silicon, compared to "Tahiti," it turns out that the silicon features a 384-bit wide GDDR5 memory interface, and not the previously thought of 256-bit wide one. The die is placed on a package with pins for just 256-bit, on the Radeon R9 285, but it can be placed on a bigger package, with more pins, to wire out the full width of the memory bus, in future SKUs. This isn't the first time AMD has done something like this. Its "Tahiti LE" chip was essentially a "Tahiti" die placed on a smaller package with pins for just a 256-bit wide memory bus, on the oddball Radeon HD 7870 XT.

What this means is that AMD's next performance-segment graphics card based on the "Tonga" silicon, could feature 50% more memory bandwidth than the R9 285. The stream processor count is still 2,048, but these are more advanced Graphics CoreNext 1.2 stream processors, compared to first-generation ones on "Tahiti," offering more performance per Watt. The TMU count remains 128, although there's no clarity on the ROP count. Estimates are split between 32 and 48. The R9 285 has 32, and so does "Tahiti."
Source: PCWatch

XFX Rolls Out its Radeon R9 285 Double Dissipation Graphics Card

XFX joined the Radeon R9 285 launch party with its compact R9 285 Double Dissipation graphics card. Built on an black, custom-design, matte-finish PCB, XFX' card features a lightweight version of its twin-fan cooling solution, which has been featured on its older performance-segment cards, such as the R9 270X. The cooler features a dense aluminium fin stack, to which heat is fed by four 6 mm thick copper heat pipes, which is then ventilated by a pair of 80 mm spinners. The card sticks to AMD reference clock speeds of 918 MHz core, and 5.50 GHz (GDDR5-effective) memory. Based on the 28 nm "Tonga" silicon, the R9 285 features 1,792 Graphics CoreNext 1.2 stream processors, 112 TMUs, 32 ROPs, and a 256-bit wide GDDR5 memory interface, holding 2 GB of memory on this card. Expect it to be priced at US $249.

AMD Announces the Radeon R9 285 Performance Graphics Processor

AMD announced its most important GPU for the season, the Radeon R9 285. The chip is designed to compete with the GeForce GTX 760 from NVIDIA at not just performance, but also energy-efficiency, and low component costs, so AMD can price it better. Based on a brand new 28 nm silicon by the company, codenamed "Tonga," the R9 285 features 1,792 Graphics CoreNext 1.2 stream processors, 112 TMUs, 32 ROPs, and a 256-bit wide GDDR5 memory interface, holding 2 GB of memory.

AMD partners are free to come up with 4 GB variants. The card supports DirectX 12, OpenGL 4.4, and Mantle. It features new AMD innovations, such as XDMA CrossFire, TrueAudio DSP, and 4-display Eyefinity by plugging into every connector on the card (two dual-link DVI, one DisplayPort 1.2, and one HDMI 1.4a). The card draws power from a pair of 6-pin PCIe power connectors. Available now, the Radeon R9 285, from various AMD partners starts at US $249.

PowerColor Radeon R9 285 TurboDuo Detailed

Here are some of the first high-resolution pictures of the Radeon R9 285 TurboDuo graphics card by PowerColor. The card features a meaty custom-design cooling solution, with two twin-impeller fans, and a dense aluminium fin-stack heatsink. PowerColor didn't bother with a reference-clock variant of this card. It comes factory-overclocked, at 945 MHz core (918 MHz reference), and 5.50 GHz (GDDR5-effective) memory. It features 2 GB of it.

Based on the 28 nm "Tonga" silicon, the Radeon R9 285 features 1,792 Graphics CoreNext 1.1 stream processors, 112 TMUs, 32 ROPs, and a 256-bit wide GDDR5 memory interface. The card draws power from two 6-pin PCIe power connectors. Display outputs include two dual-link DVI, and one each of HDMI and DisplayPort. With a modern XDMA CrossFire interface, the card lacks CrossFire fingers. It remains to be seen just how many cards the driver allows you to run in tandem. The Radeon R9 285 from AMD will launch on the 2nd of September, 2014. Prices start at US $249.

ASUS Radeon R9 285 Strix Graphics Card Pictured

Here are some of the first detailed shots of ASUS' premium custom-design Radeon R9 285 Strix graphics card, based on AMD's upcoming GPU. The card features a unique cooling solution that keeps its fans off until the GPU reaches a temperature threshold. The cooler's underlying heatsink is essentially DirectCU II, featuring a dense aluminium fin stack to which heat drawn directly from the GPU die is fed by a number of nickel-plated copper heat pipes. This particular card features a factory-overclock, and 2 GB of memory. Oh, and it comes with a back-plate. Based on the 28 nm "Tonga" silicon, the R9 285 features 1,792 Graphics CoreNext 1.1 stream processors, 112 TMUs, 32 ROPs, and a 256-bit wide GDDR5 memory interface. The card is set to launch on 2nd September, 2014. It will start at US $249.


Source: VideoCardz

AMD Radeon R9 285 Clock Speeds and Pricing Revealed

It's confirmed the GeForce GTX 760 really is on AMD's crosshair's with the Radeon R9 285. Based on the 28 nm "Tonga" silicon, which is designed to offer "Tahiti" like performance at the energy-efficiency levels comparable to NVIDIA's GK104, the R9 285 features 1,792 Graphics CoreNext stream processors, 112 TMUs, 32 ROPs, and 256-bit wide GDDR5 memory interface, holding 2 GB or 4 GB of memory. The card will feature clock speeds of 918 MHz core, 5.50 GHz memory. AMD claims the R9 285 will be up to 15 percent faster than the GeForce GTX 760. It will start at US $249, with partners coming out with custom-designs on day-one (September 2nd, 2014).

All AMD Graphics CoreNext GPUs to Support DirectX 12: Company

AMD production manager Devon Nekechuk, speaking at the company's 30 Years of Graphics event, disclosed that all AMD GPUs based on the Graphics CoreNext architecture will support DirectX 12, Microsoft's next generation multimedia API. The company is already up-to-date on the DirectX feature-level support, with support for DirectX 11.2. The company isn't drumming that up too loud, probably because it's developing an ecosystem for its own/competing AMD Mantle 3D API.

AMD Radeon R9 285 Launch Date Revealed

AMD is set to launch its new performance-segment graphics card, the Radeon R9 285, on the 2nd September, 2014. Ahead of its launch, the company is expected to tease the card at its August 23rd press-event, celebrating 30 years of graphics and gaming. On that day, AMD will share "partial" details of the card.

The R9 285 is based on AMD's swanky new 28 nm "Tonga" silicon, which is being drummed up to be AMD's best answer to NVIDIA's GK104. The chip offers performance rivaling "Tahiti," at the power consumption of GK104. The R9 285 is being designed to offer performance roughly that of the Radeon R9 280, at energy-efficiency, and pricing to drop lead on NVIDIA's GeForce GTX 760. A month later, presumably in early October, the company plans to launch the faster R9 285X, offering performance comparable (if not higher than) the R9 280X, at the energy-efficiency levels of GTX 770. "Tonga" physically features 2,048 Graphics CoreNext 1.1 stream processors, 128 TMUs, 32 ROPs, and a 256-bit wide GDDR5 memory interface, which will hold 2 GB or 4 GB of memory.


Source: VideoCardz

AMD "Tonga" Silicon Features 2048 Stream Processors

According to a block diagram of AMD's new 28 nm "Tonga" silicon, it features the same amount of shading power as "Tahiti," if not more. The chip features a total of 2,048 Graphics CoreNext 1.1 stream processors, spread across 32 compute units (CUs). The chip also features 128 TMUs. The block diagram was part of press-material AMD distributed with its recently launched FirePro W7100 professional graphics card, which is based on "Tonga."

The W7100 uses just 28 of the 32 CUs, and hence features 1,792 stream processors. Other features of "Tonga," according to the block diagram, include a 256-bit wide GDDR5 memory interface, 32 ROPs, TrueAudio DSP, and a modern XDMA CrossFire interface. The first consumer graphics card based on this chip is the Radeon R9 285. It is expected to feature 1,792 stream processors, and offer performance rivaling the Radeon HD 7950 Boost at lower power draw, and priced to compete with the GeForce GTX 760. That could leave the possibility of a future "R9 285X" with the chip's full complement of stream processors.
Sources: Hardware.fr, VideoCardz

AMD Readies 28 nm "Tonga" to Take on GM107

NVIDIA's energy-efficiency leap achieved on existing 28 nanometer process, using the "Maxwell" based GM107, appears to have rattled AMD. The company is reportedly attempting a super-efficient, 28 nm, mid-range chip of its own, codenamed "Tonga." The chip could power graphics cards that compete with the GeForce GTX 750 Ti and GTX 750. The chip is likely to be based on Graphics CoreNext 2.0 micro-architecture, the same one that drives "Hawaii," which means AMD isn't counting on the micro-architecture for efficiency gains. It could feature an evolution of PowerTune, which works closer to the metal than its existing implementation on "Hawaii." Other features could include Mantle, TrueAudio, and perhaps even XDMA CrossFire (no cables needed). The chip could be wired to up to 2 GB of memory.

Another equally plausible theory doing rounds is that "Tonga" could be a replacement to "Tahiti Pro," designed to compete with the GK104 at much lower power footprint (than "Tahiti"), so AMD could more effectively compete with the GeForce GTX 760. The chip could be similar in feature-set to "Tahiti," with a narrower memory bus (256-bit wide), but higher clock speeds to make up for it. If this theory holds true, then "Tonga" could disrupt both Tahiti Pro and "Curacao XT." Curacao XT (R9 270X) is designed to offer a value-conscious alternative to the $250 GTX 760. The R9 280 is competitive in performance, but takes a beating on the energy-efficiency front, and is also costlier to manufacture, due to the higher transistor count and four additional memory chips. We could hear more at Computex 2014.


Source: VideoCardz
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