News Posts matching "GDDR5"

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Sapphire Squeezes Radeon HD 7750 Down to Single-Slot Low-Profile

What you might pass away for a bare entry-level graphics card at first glance, could end up being Sapphire's new Radeon HD 7750 single-slot low-profile graphics card. The design is a beneficiary of 28 nm "Cape Verde" silicon, which is found to have good-enough temperatures on its reference-design board. The card is ideal for mini-ITX systems. It relies entirely on the PCI-Express slot for power, and uses a 2+1+1 phase VRM, which utilizes high-grade driver-MOSFETs on its GPU phases.

The card sticks to AMD reference clock speeds of 800 MHz core, with 1125 MHz (4.50 GHz effective) memory. It packs 1 GB of GDDR5 memory over a 128-bit wide memory interface. The GPU packs 512 Graphics CoreNext stream processors. Display outputs include one each of dual-link DVI, mini-DisplayPort, and mini-HDMI. Adapters converting them to standard-size connectors, and a low-profile bracket will come included.

Sapphire Displays Radeon HD 7770 Ultimate Graphics Card

In February, Sapphire launched its HD 7750 Ultimate fan-less, silent graphics card. At Computex, the AMD Radeon major unveiled the model of this kind, based on the faster Radeon HD 7770 GPU. Called the Sapphire HD 7770 Ultimate, the card relies on a much larger aluminum fin heatsink than the one featured on the HD 7750 Ultimate, to cool the GPU. The heatsink makes the card about as long as an HD 7900 series model, although its PCB isn't as long. This allows a large portion of the heatsink to passively (by convection) vent its hot air above, without being interrupted by the PCB.

Despite its large heatsink, the Sapphire HD 7770 Ultimate does not need more than two expansion card slots in your system. Sapphire did not compromise on the clock speeds, although the card sticks to AMD reference speeds of 1000 MHz core, 1125 MHz (4.50 GHz effective) memory. It holds 1 GB of GDDR5 memory across a 128-bit wide memory interface. Based on the 28 nm "Cape Verde" silicon, the HD 7770 packs 640 Graphics CoreNext stream processors. Sapphire will launch the HD 7770 Ultimate a little later this year.

PowerColor HD 7970 X2 Devil 13 Taken Apart

Here are the first pictures of PowerColor's ambitious Radeon HD 7970 X2 Devil 13 dual-GPU graphics card taken apart. The pictures reveal a PCB that's both longer and taller than that of the HD 7970, to create room for two 28 nm "Tahiti" GPUs, a total of 24 GDDR5 memory chips (12 on each side), a PLX PEX8747 PCIe 3.0 bridge chip, and a VRM that consists of 5+2+1 phases per GPU system. The card draws power from three 8-pin PCIe power connectors. The VRM consists of solid-state chokes and Renesas Driver-MOSFETs. Display outputs include two each of DVI and mini-DP, and an HDMI. Each GPU system has a pair of BIOS'es (performance and failsafe).

PowerColor Radeon HD 7970 X2 Devil13 Graphics Card Detailed

Last week, we were teased with the first picture of PowerColor's Vortex III cooling solution. A little later that week, we also got reports that AMD's add-in board (AIB) partners are working on off-spec dual-GPU graphics accelerators, calling them "Radeon HD 7970 X2", even as AMD's own HD 7990 is on course. It turns out that the card the Vortex III is designed to cool is PowerColor's newest high-end creation, the Radeon HD 7970 X2 Devil13.

Decked in red and black, the card is a custom-design dual-GPU graphics card from PowerColor, which incorporates two 28 nm Tahiti GPUs in CrossFire configuration. The GPUs have all their components enabled, and clocked on par with single-GPU Radeon HD 7970. The two GPU systems cumulatively hold 6 GB of GDDR5 memory (3 GB per GPU, over 384-bit wide interface). The card draws power from three 8-pin PCI-Express power connectors, and has a rated TDP of 525W. The card will be exhibited at Computex, where it will be further detailed.

Source: DonanimHaber

GK110 Packs 2880 CUDA Cores, 384-bit Memory Interface: Die-Shot

With its competition checked thanks to good performance by its GK104 silicon, NVIDIA was bold enough to release die-shots of its GK110 silicon, which made its market entry as the Tesla K20 GPU-compute accelerator. This opened flood-gates of speculation surrounding minute details of the new chip, from various sources. We found one of these most plausible, by Beyond3D community member "fellix". The source of the image appears to have charted out component layout of the chip by some pattern recognition and educated guesswork.

It identifies the the 7.1 billion transistor GK110 silicon to have 15 streaming multiprocessors (SMX). A little earlier this week, sources close to NVIDIA confirmed the SMX count to TechPowerUp. NVIDIA revealed that the chip will retain the SMX design of GK104, in which each of these holds 192 CUDA cores. Going by that, GK110 has a total of 2880 cores. Blocks of SMX units surround a centrally-located command processor, along with six setup pipelines, and a portion holding the ROPs and memory controllers. There are a total of six GDDR5 PHYs, which could amount to a 384-bit wide memory interface. The chip talks to the rest of the system over PCI-Express 3.0.

Source: Beyond3D Forum

GIGABYTE Launches GeForce GTX 670 WindForce 3X Graphics Card

GIGABYTE's first and only GeForce GTX 670 graphics card is the GV-N670OC-2GD, a non-reference design graphics card that implements the company's popular WindForce 3X cooling solution, coupled with its UltraDurable VGA+ PCB. While the PCB layout appears to be identical to that of NVIDIA reference design GeForce GTX 680, it is backed by GIGABYTE exclusives such as 2 oz copper PCB layers, electrical ripple control, tier 1 GDDR5 memory chips, ferrite core chokes, low RDS (on) MOSFETs, and Japanese solid-state capacitors.

Out of the box, the GV-N670OC-2GD features clock speeds of 980 MHz core, 1058 MHz GPU Boost, and 6.00 GHz effective GDDR5 memory. It loads 2 GB of memory across a 256-bit wide memory interface, with 192 GB/s bandwidth. Display outputs include two dual-link DVI, and one each of HDMI and DisplayPort. The card is capable of 4-way SLI. The cooling solution consists of two aluminum fin stacks, to which heat is transported by three copper heat pipes that make direct contact with the GPU, and ventilated by three 90 mm fans. GIGABYTE is asking US $415 for the GeForce GTX 670 WindForce 3X OC 2 GB.

AMD Readies Radeon HD 7970 GHz Edition

AMD's Radeon HD 7970 could not hold on to the single-GPU performance crown for too long. It lost it to NVIDIA GeForce GTX 680, and the upcoming GeForce GTX 670 threatens to damage its competitiveness even further. Reports suggest that AMD is working on a new Tahiti-based graphics card SKU, the Radeon HD 7970 GHz Edition. AMD unveiled the "GHz Edition" moniker to denote SKUs that come with engine clock speed ≥1 GHz. The new HD 7970 GHz Edition will come with reference core clock speed of 1050 MHz.

AMD needn't tinker with memory clock speed, as it already has a 384-bit wide GDDR5 memory interface compared to the GeForce GTX 680 and its 256-bit memory bus width. Sources told Atomic PC that improved yields and manufacturing processes have benefitted Tahiti just as well as GK104, and ES Tahiti chips from the latest batches "easily" hit 1250 MHz core. These batches could make custom-design graphics cards with extremely high core clock speeds possible.

Sources: Atomic PC, Engadget

NVIDIA's GeForce GTX 670 Short PCB Pictured Up Close

Thanks to the impressive power-draw and temperature figures its GeForce GTX 680 could come up with, NVIDIA's newest SKU based on the 28 nm GK104 silicon, the GeForce GTX 670, will feature a compact PCB. The reverse side of this PCB was first pictured on a Colorful-branded graphics card. A picture of its obverse side was posted earlier today. In comparison to the GTX 680, the GTX 670 PCB is quite short. The eight GDDR5 memory chips are distributed between both the sides, these chips are wired to the GPU over a 256-bit wide memory interface. The VRM area is pushed towards the front-end of the PCB. It consists of a 4+2 phase design. 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. There are two SLI bridge connectors, giving it 4-way SLI capability.

Source: PCinLife

ASUS Launches its GeForce GTX 690 Graphics Card

The ASUS GeForce GTX 690 graphics card debuts 28nm dual-GPU performance, presenting the most powerful card of the generation thus far. It enables gaming with superior speed, smoothness, and detail. Due to smarter fabrication, its power demands are relatively modest for energy-conservative operation. This promotes easier quad-SLI setups with paired ASUS GeForce GTX 690s. ASUS continues to offer gamers the best overclocking experience with the exclusive GPU Tweak utility, which goes well together with DirectX 11 and OpenGL 4.2, plus technologies such as NVIDIA GPU Boost, advanced anti-aliasing (TXAA/FXAA), and Adaptive Vertical Sync.

NVIDIA GeForce GTX 690 Starts Selling

Announced last week, NVIDIA GeForce GTX 690 enthusiast graphics card started selling, at an MSRP of US $999 (prices vary greatly by region). A variety of add-in card (AIC) partners will launch their GTX 690 graphics cards today. The GeForce GTX 690 is a dual-GPU graphics card that packs two 28 nm GeForce Kepler 104 GPUs, arranged in an internal SLI configuration. Both these chips have all their components unlocked, including 1536 CUDA cores, and 2 GB of GDDR5 memory across a 256-bit wide memory interface. The card hence ends up with a total of 3072 CUDA cores, and 4 GB of memory. The card should be available on leading retail stores. Despite its high price, it could sell out fast.
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