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GeForce 8800 GTS (G92) vs Radeon HD 6950 2GB

Intro

The GeForce 8800 GTS (G92) uses a 65 nm design. nVidia has clocked the core speed at 650 MHz. The GDDR3 RAM is set to run at a speed of 970 MHz on this model. It features 128 SPUs along with 64 TAUs and 16 ROPs.

Compare those specifications to the Radeon HD 6950 2GB, which comes with a GPU core clock speed of 800 MHz, and 2048 MB of GDDR5 memory set to run at 1250 MHz through a 256-bit bus. It also is made up of 1408 SPUs, 88 Texture Address Units, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G92) 135 Watts
Radeon HD 6950 2GB 200 Watts
Difference: 65 Watts (48%)

Memory Bandwidth

Performance-wise, the Radeon HD 6950 2GB should theoretically be a lot better than the GeForce 8800 GTS (G92) in general. (explain)

Radeon HD 6950 2GB 160000 MB/sec
GeForce 8800 GTS (G92) 62080 MB/sec
Difference: 97920 (158%)

Texel Rate

The Radeon HD 6950 2GB should be a lot (more or less 69%) better at AF than the GeForce 8800 GTS (G92). (explain)

Radeon HD 6950 2GB 70400 Mtexels/sec
GeForce 8800 GTS (G92) 41600 Mtexels/sec
Difference: 28800 (69%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 6950 2GB is the winner, by far. (explain)

Radeon HD 6950 2GB 25600 Mpixels/sec
GeForce 8800 GTS (G92) 10400 Mpixels/sec
Difference: 15200 (146%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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GeForce 8800 GTS (G92)

Amazon.com

Check prices at:

Radeon HD 6950 2GB

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce 8800 GTS (G92) Radeon HD 6950 2GB
Manufacturer nVidia AMD
Year Dec 2007 December 2010
Code Name G92 Cayman Pro
Memory 512 MB 2048 MB
Core Speed 650 MHz 800 MHz
Memory Speed 1940 MHz 5000 MHz
Power (Max TDP) 135 watts 200 watts
Bandwidth 62080 MB/sec 160000 MB/sec
Texel Rate 41600 Mtexels/sec 70400 Mtexels/sec
Pixel Rate 10400 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 128 1408
Texture Mapping Units 64 88
Render Output Units 16 32
Bus Type GDDR3 GDDR5
Bus Width 256-bit 256-bit
Fab Process 65 nm 40 nm
Transistors 754 million 2640 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the largest amount of information (counted in MB per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GTS (G92)

Amazon.com

Check prices at:

Radeon HD 6950 2GB

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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