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GeForce GTX 580 3GB vs GeForce GTX 590

Intro

The GeForce GTX 580 3GB uses a 40 nm design. nVidia has set the core frequency at 772 MHz. The GDDR5 memory works at a speed of 1002 MHz on this specific model. It features 512 SPUs as well as 64 TAUs and 48 ROPs.

Compare all of that to the GeForce GTX 590, which features a clock speed of 607 MHz and a GDDR5 memory speed of 855 MHz. It also features a 384-bit memory bus, and makes use of a 40 nm design. It is comprised of 512 SPUs, 64 TAUs, and 48 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
GeForce GTX 590 365 Watts
Difference: 121 Watts (50%)

Memory Bandwidth

Performance-wise, the GeForce GTX 590 should in theory be a lot superior to the GeForce GTX 580 3GB overall. (explain)

GeForce GTX 590 328320 MB/sec
GeForce GTX 580 3GB 192384 MB/sec
Difference: 135936 (71%)

Texel Rate

The GeForce GTX 590 should be much (approximately 57%) better at anisotropic filtering than the GeForce GTX 580 3GB. (explain)

GeForce GTX 590 77696 Mtexels/sec
GeForce GTX 580 3GB 49408 Mtexels/sec
Difference: 28288 (57%)

Pixel Rate

The GeForce GTX 590 will be much (about 57%) faster with regards to full screen anti-aliasing than the GeForce GTX 580 3GB, and will be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 590 58272 Mpixels/sec
GeForce GTX 580 3GB 37056 Mpixels/sec
Difference: 21216 (57%)

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

GeForce GTX 590

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 GeForce GTX 590
Manufacturer nVidia nVidia
Year November 2010 March 2011
Code Name GF110 GF110
Fab Process 40 nm 40 nm
Bus PCIe x16 PCIe 2.0 x16
Memory 3072 MB 1536 MB (x2)
Core Speed 772 MHz 607 MHz (x2)
Shader Speed 1544 MHz 1215 MHz (x2)
Memory Speed 1002 MHz (4008 MHz effective) 855 MHz (3420 MHz effective) (x2)
Unified Shaders 512 512 (x2)
Texture Mapping Units 64 64 (x2)
Render Output Units 48 48 (x2)
Bus Type GDDR5 GDDR5
Bus Width 384-bit 384-bit (x2)
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1
Power (Max TDP) 244 watts 365 watts
Shader Model 5.0 5.0
Bandwidth 192384 MB/sec 328320 MB/sec
Texel Rate 49408 Mtexels/sec 77696 Mtexels/sec
Pixel Rate 37056 Mpixels/sec 58272 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses 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 processed per second. This is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

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

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