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GeForce GTX 285 1GB vs Radeon HD 5970

Intro

The GeForce GTX 285 1GB comes with a GPU core speed of 648 MHz, and the 1024 MB of GDDR3 RAM is set to run at 1242 MHz through a 512-bit bus. It also is comprised of 240 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.

Compare those specs to the Radeon HD 5970, which has GPU clock speed of 725 MHz, and 1024 MB of GDDR5 RAM set to run at 1000 MHz through a 256-bit bus. It also features 1600 SPUs, 160 Texture Address Units, and 64 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 285 1GB 204 Watts
Radeon HD 5970 294 Watts
Difference: 90 Watts (44%)

Memory Bandwidth

Performance-wise, the Radeon HD 5970 should in theory be quite a bit superior to the GeForce GTX 285 1GB overall. (explain)

Radeon HD 5970 256000 MB/sec
GeForce GTX 285 1GB 158976 MB/sec
Difference: 97024 (61%)

Texel Rate

The Radeon HD 5970 will be much (approximately 348%) more effective at AF than the GeForce GTX 285 1GB. (explain)

Radeon HD 5970 232000 Mtexels/sec
GeForce GTX 285 1GB 51840 Mtexels/sec
Difference: 180160 (348%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 5970 is a better choice, by a large margin. (explain)

Radeon HD 5970 92800 Mpixels/sec
GeForce GTX 285 1GB 20736 Mpixels/sec
Difference: 72064 (348%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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GeForce GTX 285 1GB

Amazon.com

Check prices at:

Radeon HD 5970

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 1GB Radeon HD 5970
Manufacturer nVidia AMD
Year January 15, 2009 November 2009
Code Name G200b Hemlock XT
Memory 1024 MB 1024 MB (x2)
Core Speed 648 MHz 725 MHz (x2)
Memory Speed 2484 MHz 4000 MHz (x2)
Power (Max TDP) 204 watts 294 watts
Bandwidth 158976 MB/sec 256000 MB/sec
Texel Rate 51840 Mtexels/sec 232000 Mtexels/sec
Pixel Rate 20736 Mpixels/sec 92800 Mpixels/sec
Unified Shaders 240 1600 (x2)
Texture Mapping Units 80 160 (x2)
Render Output Units 32 64 (x2)
Bus Type GDDR3 GDDR5
Bus Width 512-bit 256-bit (x2)
Fab Process 55 nm 40 nm
Transistors 1400 million 2154 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 (measured in megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 285 1GB

Amazon.com

Check prices at:

Radeon HD 5970

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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