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GeForce GTX 580 3GB vs GeForce GTX 590

Intro

The GeForce GTX 580 3GB makes use of a 40 nm design. nVidia has clocked the core speed at 772 MHz. The GDDR5 memory runs at a frequency of 1002 MHz on this model. It features 512 SPUs as well as 64 TAUs and 48 Rasterization Operator Units.

Compare all of that to the GeForce GTX 590, which features GPU clock speed of 607 MHz, and 1536 MB of GDDR5 memory set to run at 855 MHz through a 384-bit bus. It also features 512 Stream Processors, 64 Texture Address Units, and 48 Raster Operation Units.

Display Graphs

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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

The GeForce GTX 590, in theory, should perform a lot faster than 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 quite a bit (more or less 57%) more effective 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 is much (about 57%) more effective at FSAA than the GeForce GTX 580 3GB, and should be capable of handling higher 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

GeForce GTX 590

Specifications

Display Specifications

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Model GeForce GTX 580 3GB GeForce GTX 590
Manufacturer nVidia nVidia
Year November 2010 March 2011
Code Name GF110 GF110
Memory 3072 MB 1536 MB (x2)
Core Speed 772 MHz 607 MHz (x2)
Memory Speed 4008 MHz 3420 MHz (x2)
Power (Max TDP) 244 watts 365 watts
Bandwidth 192384 MB/sec 328320 MB/sec
Texel Rate 49408 Mtexels/sec 77696 Mtexels/sec
Pixel Rate 37056 Mpixels/sec 58272 Mpixels/sec
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)
Fab Process 40 nm 40 nm
Transistors 3000 million 3000 million
Bus PCIe x16 PCIe 2.0 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of data (in units of MB per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of 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 higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

GeForce GTX 580 3GB

GeForce GTX 590

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