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GeForce GTX 260 vs Radeon HD 6970


Intro

The GeForce GTX 260 comes with a GPU core speed of 576 MHz, and the 896 MB of GDDR3 memory is set to run at 999 MHz through a 448-bit bus. It also is comprised of 192 Stream Processors, 64 Texture Address Units, and 28 ROPs.

Compare all that to the Radeon HD 6970, which features a core clock frequency of 880 MHz and a GDDR5 memory speed of 1375 MHz. It also makes use of a 256-bit memory bus, and makes use of a 40 nm design. It features 1536 SPUs, 96 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 260 182 Watts
Radeon HD 6970 250 Watts
Difference: 68 Watts (37%)

Memory Bandwidth

As far as performance goes, the Radeon HD 6970 should theoretically be a lot better than the GeForce GTX 260 in general. (explain)

Radeon HD 6970 176000 MB/sec
GeForce GTX 260 111888 MB/sec
Difference: 64112 (57%)

Texel Rate

The Radeon HD 6970 will be quite a bit (approximately 129%) better at AF than the GeForce GTX 260. (explain)

Radeon HD 6970 84480 Mtexels/sec
GeForce GTX 260 36864 Mtexels/sec
Difference: 47616 (129%)

Pixel Rate

The Radeon HD 6970 should be a lot (approximately 75%) better at anti-aliasing than the GeForce GTX 260, and also able to handle higher resolutions without losing too much performance. (explain)

Radeon HD 6970 28160 Mpixels/sec
GeForce GTX 260 16128 Mpixels/sec
Difference: 12032 (75%)

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 GTX 260

Amazon.com

Radeon HD 6970

Amazon.com

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 GTX 260 Radeon HD 6970
Manufacturer nVidia AMD
Year June 16, 2008 December 2010
Code Name G200 Cayman XT
Memory 896 MB 2048 MB
Core Speed 576 MHz 880 MHz
Memory Speed 1998 MHz 5500 MHz
Power (Max TDP) 182 watts 250 watts
Bandwidth 111888 MB/sec 176000 MB/sec
Texel Rate 36864 Mtexels/sec 84480 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 28160 Mpixels/sec
Unified Shaders 192 1536
Texture Mapping Units 64 96
Render Output Units 28 32
Bus Type GDDR3 GDDR5
Bus Width 448-bit 256-bit
Fab Process 65 nm 40 nm
Transistors 1400 million 2640 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in MB per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the bus width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 260

Amazon.com

Radeon HD 6970

Amazon.com

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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