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GeForce 8600 GTS vs Radeon HD 6950

Intro

The GeForce 8600 GTS features clock speeds of 675 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR3 memory. It features 32 SPUs as well as 16 Texture Address Units and 8 ROPs.

Compare those specifications to the Radeon HD 6950, which has core clock speeds of 800 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 RAM. It features 1408 SPUs along with 88 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GTS 75 Watts
Radeon HD 6950 200 Watts
Difference: 125 Watts (167%)

Memory Bandwidth

In theory, the Radeon HD 6950 should perform much faster than the GeForce 8600 GTS in general. (explain)

Radeon HD 6950 160000 MB/sec
GeForce 8600 GTS 32000 MB/sec
Difference: 128000 (400%)

Texel Rate

The Radeon HD 6950 is quite a bit (approximately 552%) faster with regards to texture filtering than the GeForce 8600 GTS. (explain)

Radeon HD 6950 70400 Mtexels/sec
GeForce 8600 GTS 10800 Mtexels/sec
Difference: 59600 (552%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 6950 is a better choice, and very much so. (explain)

Radeon HD 6950 25600 Mpixels/sec
GeForce 8600 GTS 5400 Mpixels/sec
Difference: 20200 (374%)

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

Display Prices

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GeForce 8600 GTS

Amazon.com

Check prices at:

Radeon HD 6950

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 8600 GTS Radeon HD 6950
Manufacturer nVidia AMD
Year April 2007 December 2010
Code Name G84 Cayman Pro
Memory 512 MB 1024 MB
Core Speed 675 MHz 800 MHz
Memory Speed 2000 MHz 5000 MHz
Power (Max TDP) 75 watts 200 watts
Bandwidth 32000 MB/sec 160000 MB/sec
Texel Rate 10800 Mtexels/sec 70400 Mtexels/sec
Pixel Rate 5400 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 32 1408
Texture Mapping Units 16 88
Render Output Units 8 32
Bus Type GDDR3 GDDR5
Bus Width 128-bit 256-bit
Fab Process 80 nm 40 nm
Transistors 289 million 2640 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the bus width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. 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 rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce 8600 GTS

Amazon.com

Check prices at:

Radeon HD 6950

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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