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GeForce GTX 580 vs Radeon HD 7970

Intro

The GeForce GTX 580 has a GPU core speed of 772 MHz, and the 1536 MB of GDDR5 memory is set to run at 1002 MHz through a 384-bit bus. It also is comprised of 512 SPUs, 64 Texture Address Units, and 48 ROPs.

Compare those specs to the Radeon HD 7970, which has a GPU core clock speed of 925 MHz, and 3072 MB of GDDR5 RAM set to run at 1375 MHz through a 384-bit bus. It also is comprised of 2048 Stream Processors, 128 TAUs, and 32 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

Grand Theft Auto V | 1920x1080 | Very High

Radeon HD 7970 37 FPS
GeForce GTX 580 25 FPS
Difference: 12 (48%)

3DMark Fire Strike Graphics Score

Radeon HD 7970 8225 points
GeForce GTX 580 4960 points
Difference: 3265 (66%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 580 244 Watts
Radeon HD 7970 250 Watts
Difference: 6 Watts (2%)

Memory Bandwidth

As far as performance goes, the Radeon HD 7970 should theoretically be quite a bit superior to the GeForce GTX 580 overall. (explain)

Radeon HD 7970 264000 MB/sec
GeForce GTX 580 192384 MB/sec
Difference: 71616 (37%)

Texel Rate

The Radeon HD 7970 will be a lot (approximately 140%) more effective at AF than the GeForce GTX 580. (explain)

Radeon HD 7970 118400 Mtexels/sec
GeForce GTX 580 49408 Mtexels/sec
Difference: 68992 (140%)

Pixel Rate

The GeForce GTX 580 should be a lot (about 25%) faster with regards to full screen anti-aliasing than the Radeon HD 7970, and should be able to handle higher resolutions more effectively. (explain)

GeForce GTX 580 37056 Mpixels/sec
Radeon HD 7970 29600 Mpixels/sec
Difference: 7456 (25%)

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

GeForce GTX 580

Radeon HD 7970

Specifications

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Model GeForce GTX 580 Radeon HD 7970
Manufacturer nVidia AMD
Year November 2010 January 2012
Code Name GF110 Tahiti XT
Memory 1536 MB 3072 MB
Core Speed 772 MHz 925 MHz
Memory Speed 4008 MHz 5500 MHz
Power (Max TDP) 244 watts 250 watts
Bandwidth 192384 MB/sec 264000 MB/sec
Texel Rate 49408 Mtexels/sec 118400 Mtexels/sec
Pixel Rate 37056 Mpixels/sec 29600 Mpixels/sec
Unified Shaders 512 2048
Texture Mapping Units 64 128
Render Output Units 48 32
Bus Type GDDR5 GDDR5
Bus Width 384-bit 384-bit
Fab Process 40 nm 28 nm
Transistors 3000 million 4313 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range 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 calculated by multiplying the total 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 in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

GeForce GTX 580

Radeon HD 7970

Comments

3 Responses to “GeForce GTX 580 vs Radeon HD 7970”
kazamajean says:

hmmm it seems hd770 won in memory bus and texel rate but the 580 won the pixel rate, but who is the best among them?

tim says:

yes the 7970 is the winner, because of its 140% win over the 580 in the texel rate 😀

Vemri says:

AMD 7970 absolutely more fast than 580, but they still can't handle physx engine in some way they been kicked by Nvidia 2010 card technology.
it depend on your gaming needs and specification.
in this case (hi-end gaming) i am still in the "GREEN" side. they are fast as well.
but for my brothers PC i chose AMD beast gaming machine for the mid-end gaming.

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