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GeForce GTX 480 vs GeForce GTX 580

Intro

The GeForce GTX 480 uses a 40 nm design. nVidia has clocked the core speed at 700 MHz. The GDDR5 memory is set to run at a frequency of 924 MHz on this card. It features 480 SPUs along with 60 TAUs and 48 ROPs.

Compare those specifications to the GeForce GTX 580, which features clock speeds of 772 MHz on the GPU, and 1002 MHz on the 1536 MB of GDDR5 RAM. It features 512 SPUs along with 64 TAUs and 48 ROPs.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 580 244 Watts
GeForce GTX 480 250 Watts
Difference: 6 Watts (2%)

Memory Bandwidth

In theory, the GeForce GTX 580 is 8% faster than the GeForce GTX 480 in general, due to its greater bandwidth. (explain)

GeForce GTX 580 192384 MB/sec
GeForce GTX 480 177408 MB/sec
Difference: 14976 (8%)

Texel Rate

The GeForce GTX 580 should be a bit (more or less 18%) more effective at anisotropic filtering than the GeForce GTX 480. (explain)

GeForce GTX 580 49408 Mtexels/sec
GeForce GTX 480 42000 Mtexels/sec
Difference: 7408 (18%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 580 is superior to the GeForce GTX 480, though not by far. (explain)

GeForce GTX 580 37056 Mpixels/sec
GeForce GTX 480 33600 Mpixels/sec
Difference: 3456 (10%)

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 480

Amazon.com

GeForce GTX 580

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 480 GeForce GTX 580
Manufacturer nVidia nVidia
Year March 2010 November 2010
Code Name GF100 GF110
Fab Process 40 nm 40 nm
Bus PCIe x16 PCIe x16
Memory 1536 MB 1536 MB
Core Speed 700 MHz 772 MHz
Shader Speed 1401 MHz 1544 MHz
Memory Speed 924 MHz (3696 MHz effective) 1002 MHz (4008 MHz effective)
Unified Shaders 480 512
Texture Mapping Units 60 64
Render Output Units 48 48
Bus Type GDDR5 GDDR5
Bus Width 384-bit 384-bit
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1
Power (Max TDP) 250 watts 244 watts
Shader Model 5.0 5.0
Bandwidth 177408 MB/sec 192384 MB/sec
Texel Rate 42000 Mtexels/sec 49408 Mtexels/sec
Pixel Rate 33600 Mpixels/sec 37056 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This 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 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 maximum number of pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Comments

4 Responses to “GeForce GTX 480 vs GeForce GTX 580”
[...] were not that far off from each other http://www.hwcompare.com/9134/geforc...force-gtx-580/ Profile Send PM [...]
Lucas says:
Muita pouca diferença e mais barata
Juan says:
Muy poca diferencia para la abismal diferencia de precio.
Matheus says:
Difereça quaze nula, é muito mais barata quaze a metade do preço mais barata, concerteza vou de GTX 480 !

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