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GeForce GTX 580 3GB vs Radeon HD 5970

Intro

The GeForce GTX 580 3GB comes with a core clock frequency of 772 MHz and a GDDR5 memory speed of 1002 MHz. It also makes use of a 384-bit memory bus, and makes use of a 40 nm design. It is comprised of 512 SPUs, 64 Texture Address Units, and 48 Raster Operation Units.

Compare those specifications to the Radeon HD 5970, which has a clock frequency of 725 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 256-bit memory bus, and makes use of a 40 nm design. It features 1600 SPUs, 160 TAUs, and 64 Raster Operation Units.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 580 3GB 244 Watts
Radeon HD 5970 294 Watts
Difference: 50 Watts (20%)

Memory Bandwidth

Theoretically, the Radeon HD 5970 should be quite a bit faster than the GeForce GTX 580 3GB overall. (explain)

Radeon HD 5970 256000 MB/sec
GeForce GTX 580 3GB 192384 MB/sec
Difference: 63616 (33%)

Texel Rate

The Radeon HD 5970 will be a lot (more or less 370%) faster with regards to texture filtering than the GeForce GTX 580 3GB. (explain)

Radeon HD 5970 232000 Mtexels/sec
GeForce GTX 580 3GB 49408 Mtexels/sec
Difference: 182592 (370%)

Pixel Rate

The Radeon HD 5970 is much (about 150%) faster with regards to AA than the GeForce GTX 580 3GB, and capable of handling higher resolutions while still performing well. (explain)

Radeon HD 5970 92800 Mpixels/sec
GeForce GTX 580 3GB 37056 Mpixels/sec
Difference: 55744 (150%)

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

GeForce GTX 580 3GB

Amazon.com

Radeon HD 5970

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

Model GeForce GTX 580 3GB Radeon HD 5970
Manufacturer nVidia AMD
Year November 2010 November 2009
Code Name GF110 Hemlock XT
Fab Process 40 nm 40 nm
Bus PCIe x16 PCIe x16
Memory 3072 MB 1024 MB (x2)
Core Speed 772 MHz 725 MHz (x2)
Shader Speed 1544 MHz (N/A) MHz (x2)
Memory Speed 1002 MHz (4008 MHz effective) 1000 MHz (4000 MHz effective) (x2)
Unified Shaders 512 1600 (x2)
Texture Mapping Units 64 160 (x2)
Render Output Units 48 64 (x2)
Bus Type GDDR5 GDDR5
Bus Width 384-bit 256-bit (x2)
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1
Power (Max TDP) 244 watts 294 watts
Shader Model 5.0 5.0
Bandwidth 192384 MB/sec 256000 MB/sec
Texel Rate 49408 Mtexels/sec 232000 Mtexels/sec
Pixel Rate 37056 Mpixels/sec 92800 Mpixels/sec

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of MB per second) that can be transferred over the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses 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 can be processed per second. This figure is worked out by multiplying the total amount 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 a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Comments

7 Responses to “GeForce GTX 580 3GB vs Radeon HD 5970”
kostas says:
so HD 5970 2GB IS THE BEST GRAPHICS CARD IN THE WORLD what about ATI RADEON 5970 4GB
OOOOOOOOOOOOOOOOOOOO :0
kostas says:
it should be 50 percent better.......ambelivible
Dave says:
These are theoretical numbers. The 3gb 580 would perform much closer to that of the 5970 than this.
hakeeme says:
i dont believe this
nic says:
yes i would like to see the 5970 4gb on this website, also the upcoming classified 580 3gb.
LOL says:
Bunch of morons!!! Yeah theoretical and actual makes a huge diff!!! Dumb@sses!!
shooter says:
Hate to disappoint all the nVidia fanboys, but the GTX580 Classified, FTW or whatever else nVidia is trying to release these days will still get spanked by the ATI 5970. Better take a closer look at those specs of the 5970...here's a refresher 1600 SPUs as well as 160 TAUs and 64 ROPs GTX580 doesn't even come close so $499.99 and still getting spanked by the ATI 5970 and I have two of these puppies in crossfireX want to see those real world benchmarks against your Tri-SLI GTX580's?

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