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GeForce 8600 GT 1GB GDDR3 vs GeForce GTX 590

Intro

The GeForce 8600 GT 1GB GDDR3 makes use of a 80 nm design. nVidia has clocked the core frequency at 540 MHz. The GDDR3 memory works at a frequency of 700 MHz on this particular card. It features 32 SPUs along with 16 TAUs and 8 ROPs.

Compare all that to the GeForce GTX 590, which features core clock speeds of 607 MHz on the GPU, and 855 MHz on the 1536 MB of GDDR5 memory. It features 512 SPUs as well as 64 Texture Address Units and 48 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 1GB GDDR3 47 Watts
GeForce GTX 590 365 Watts
Difference: 318 Watts (677%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 590 should theoretically be a lot better than the GeForce 8600 GT 1GB GDDR3 in general. (explain)

GeForce GTX 590 328320 MB/sec
GeForce 8600 GT 1GB GDDR3 22400 MB/sec
Difference: 305920 (1366%)

Texel Rate

The GeForce GTX 590 should be quite a bit (about 799%) more effective at anisotropic filtering than the GeForce 8600 GT 1GB GDDR3. (explain)

GeForce GTX 590 77696 Mtexels/sec
GeForce 8600 GT 1GB GDDR3 8640 Mtexels/sec
Difference: 69056 (799%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 590 is the winner, by a large margin. (explain)

GeForce GTX 590 58272 Mpixels/sec
GeForce 8600 GT 1GB GDDR3 4320 Mpixels/sec
Difference: 53952 (1249%)

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

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GeForce 8600 GT 1GB GDDR3

Amazon.com

Check prices at:

GeForce GTX 590

Amazon.com

Check prices at:

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

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Model GeForce 8600 GT 1GB GDDR3 GeForce GTX 590
Manufacturer nVidia nVidia
Year April 2007 March 2011
Code Name G84 GF110
Memory 1024 MB 1536 MB (x2)
Core Speed 540 MHz 607 MHz (x2)
Memory Speed 1400 MHz 3420 MHz (x2)
Power (Max TDP) 47 watts 365 watts
Bandwidth 22400 MB/sec 328320 MB/sec
Texel Rate 8640 Mtexels/sec 77696 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 58272 Mpixels/sec
Unified Shaders 32 512 (x2)
Texture Mapping Units 16 64 (x2)
Render Output Units 8 48 (x2)
Bus Type GDDR3 GDDR5
Bus Width 128-bit 384-bit (x2)
Fab Process 80 nm 40 nm
Transistors 289 million 3000 million
Bus PCIe x16 PCIe 2.0 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 again. If 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 are processed per second. This figure is calculated by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. 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 also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce 8600 GT 1GB GDDR3

Amazon.com

Check prices at:

GeForce GTX 590

Amazon.com

Check prices at:

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.

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