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GeForce 8600 GT 512MB DDR2 vs GeForce GTS 250 512MB

Intro

The GeForce 8600 GT 512MB DDR2 makes use of a 80 nm design. nVidia has set the core speed at 540 MHz. The DDR2 RAM works at a frequency of 400 MHz on this specific model. It features 32 SPUs as well as 16 Texture Address Units and 8 ROPs.

Compare all that to the GeForce GTS 250 512MB, which makes use of a 65/55 nm design. nVidia has set the core speed at 738 MHz. The GDDR3 memory works at a frequency of 1100 MHz on this particular card. It features 128 SPUs as well as 64 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 512MB DDR2 47 Watts
GeForce GTS 250 512MB 145 Watts
Difference: 98 Watts (209%)

Memory Bandwidth

Performance-wise, the GeForce GTS 250 512MB should in theory be a lot superior to the GeForce 8600 GT 512MB DDR2 in general. (explain)

GeForce GTS 250 512MB 70400 MB/sec
GeForce 8600 GT 512MB DDR2 12800 MB/sec
Difference: 57600 (450%)

Texel Rate

The GeForce GTS 250 512MB should be much (about 447%) better at texture filtering than the GeForce 8600 GT 512MB DDR2. (explain)

GeForce GTS 250 512MB 47232 Mtexels/sec
GeForce 8600 GT 512MB DDR2 8640 Mtexels/sec
Difference: 38592 (447%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTS 250 512MB is a better choice, by a large margin. (explain)

GeForce GTS 250 512MB 11808 Mpixels/sec
GeForce 8600 GT 512MB DDR2 4320 Mpixels/sec
Difference: 7488 (173%)

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

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GeForce 8600 GT 512MB DDR2

Amazon.com

Check prices at:

GeForce GTS 250 512MB

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 512MB DDR2 GeForce GTS 250 512MB
Manufacturer nVidia nVidia
Year April 2007 March 3, 2009
Code Name G84 G92a/b
Memory 512 MB 512 MB
Core Speed 540 MHz 738 MHz
Memory Speed 800 MHz 2200 MHz
Power (Max TDP) 47 watts 145 watts
Bandwidth 12800 MB/sec 70400 MB/sec
Texel Rate 8640 Mtexels/sec 47232 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 11808 Mpixels/sec
Unified Shaders 32 128
Texture Mapping Units 16 64
Render Output Units 8 16
Bus Type DDR2 GDDR3
Bus Width 128-bit 256-bit
Fab Process 80 nm 65/55 nm
Transistors 289 million 754 million
Bus PCIe x16 PCIe x16 2.0
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.1

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in MB per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the card's clock speed. 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 many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 8600 GT 512MB DDR2

Amazon.com

Check prices at:

GeForce GTS 250 512MB

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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