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GeForce GTX 285 2GB vs Radeon HD 6970

Intro

The GeForce GTX 285 2GB makes use of a 55 nm design. nVidia has clocked the core speed at 648 MHz. The GDDR3 RAM is set to run at a speed of 1242 MHz on this specific model. It features 240 SPUs as well as 80 Texture Address Units and 32 Rasterization Operator Units.

Compare that to the Radeon HD 6970, which uses a 40 nm design. AMD has set the core speed at 880 MHz. The GDDR5 RAM runs at a speed of 1375 MHz on this particular card. It features 1536 SPUs as well as 96 TAUs and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 285 2GB 204 Watts
Radeon HD 6970 250 Watts
Difference: 46 Watts (23%)

Memory Bandwidth

In theory, the Radeon HD 6970 should be just a bit faster than the GeForce GTX 285 2GB in general. (explain)

Radeon HD 6970 176000 MB/sec
GeForce GTX 285 2GB 158976 MB/sec
Difference: 17024 (11%)

Texel Rate

The Radeon HD 6970 is a lot (more or less 63%) better at AF than the GeForce GTX 285 2GB. (explain)

Radeon HD 6970 84480 Mtexels/sec
GeForce GTX 285 2GB 51840 Mtexels/sec
Difference: 32640 (63%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 6970 is a better choice, and very much so. (explain)

Radeon HD 6970 28160 Mpixels/sec
GeForce GTX 285 2GB 20736 Mpixels/sec
Difference: 7424 (36%)

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 285 2GB

Amazon.com

Check prices at:

Radeon HD 6970

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 GTX 285 2GB Radeon HD 6970
Manufacturer nVidia AMD
Year January 15, 2009 December 2010
Code Name G200b Cayman XT
Memory 2048 MB 2048 MB
Core Speed 648 MHz 880 MHz
Memory Speed 2484 MHz 5500 MHz
Power (Max TDP) 204 watts 250 watts
Bandwidth 158976 MB/sec 176000 MB/sec
Texel Rate 51840 Mtexels/sec 84480 Mtexels/sec
Pixel Rate 20736 Mpixels/sec 28160 Mpixels/sec
Unified Shaders 240 1536
Texture Mapping Units 80 96
Render Output Units 32 32
Bus Type GDDR3 GDDR5
Bus Width 512-bit 256-bit
Fab Process 55 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 data (in units of megabytes per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied 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 higher this number, the better the graphics 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 most pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 285 2GB

Amazon.com

Check prices at:

Radeon HD 6970

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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