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GeForce GTX 285 2GB vs Radeon HD 5970

Intro

The GeForce GTX 285 2GB uses a 55 nm design. nVidia has set the core speed at 648 MHz. The GDDR3 RAM runs at a speed of 1242 MHz on this card. It features 240 SPUs as well as 80 TAUs and 32 ROPs.

Compare all of that to the Radeon HD 5970, which has GPU core speed of 725 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 256-bit bus. It also features 1600 Stream Processors, 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 2GB 204 Watts
Radeon HD 5970 294 Watts
Difference: 90 Watts (44%)

Memory Bandwidth

As far as performance goes, the Radeon HD 5970 should in theory be much superior to the GeForce GTX 285 2GB in general. (explain)

Radeon HD 5970 256000 MB/sec
GeForce GTX 285 2GB 158976 MB/sec
Difference: 97024 (61%)

Texel Rate

The Radeon HD 5970 is a lot (about 348%) faster with regards to anisotropic filtering than the GeForce GTX 285 2GB. (explain)

Radeon HD 5970 232000 Mtexels/sec
GeForce GTX 285 2GB 51840 Mtexels/sec
Difference: 180160 (348%)

Pixel Rate

The Radeon HD 5970 will be quite a bit (approximately 348%) better at FSAA than the GeForce GTX 285 2GB, and also able to handle higher resolutions more effectively. (explain)

Radeon HD 5970 92800 Mpixels/sec
GeForce GTX 285 2GB 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 2GB

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 2GB Radeon HD 5970
Manufacturer nVidia AMD
Year January 15, 2009 November 2009
Code Name G200b Hemlock XT
Memory 2048 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: Memory bandwidth is the max amount of data (in units of megabytes per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, 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 the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core clock speed. 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 also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 285 2GB

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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