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GeForce 8800 GS vs Radeon HD 6950 2GB

Intro

The GeForce 8800 GS features a clock speed of 550 MHz and a GDDR3 memory frequency of 800 MHz. It also features a 192-bit memory bus, and makes use of a 65 nm design. It is made up of 96 SPUs, 48 TAUs, and 12 Raster Operation Units.

Compare those specifications to the Radeon HD 6950 2GB, which has GPU clock speed of 800 MHz, and 2048 MB of GDDR5 RAM 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 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GS 105 Watts
Radeon HD 6950 2GB 200 Watts
Difference: 95 Watts (90%)

Memory Bandwidth

In theory, the Radeon HD 6950 2GB should be 317% faster than the GeForce 8800 GS in general, due to its higher bandwidth. (explain)

Radeon HD 6950 2GB 160000 MB/sec
GeForce 8800 GS 38400 MB/sec
Difference: 121600 (317%)

Texel Rate

The Radeon HD 6950 2GB should be a lot (more or less 167%) better at texture filtering than the GeForce 8800 GS. (explain)

Radeon HD 6950 2GB 70400 Mtexels/sec
GeForce 8800 GS 26400 Mtexels/sec
Difference: 44000 (167%)

Pixel Rate

The Radeon HD 6950 2GB should be much (approximately 288%) faster with regards to AA than the GeForce 8800 GS, and should be capable of handling higher resolutions better. (explain)

Radeon HD 6950 2GB 25600 Mpixels/sec
GeForce 8800 GS 6600 Mpixels/sec
Difference: 19000 (288%)

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 GS

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 GS Radeon HD 6950 2GB
Manufacturer nVidia AMD
Year Jan 2008 December 2010
Code Name G92 Cayman Pro
Memory 384 MB 2048 MB
Core Speed 550 MHz 800 MHz
Memory Speed 1600 MHz 5000 MHz
Power (Max TDP) 105 watts 200 watts
Bandwidth 38400 MB/sec 160000 MB/sec
Texel Rate 26400 Mtexels/sec 70400 Mtexels/sec
Pixel Rate 6600 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 96 1408
Texture Mapping Units 48 88
Render Output Units 12 32
Bus Type GDDR3 GDDR5
Bus Width 192-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 maximum amount of data (in units of megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 8800 GS

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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