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GeForce 8800 GTX vs GeForce GTS 250 512MB

Intro

The GeForce 8800 GTX features clock speeds of 575 MHz on the GPU, and 900 MHz on the 768 MB of GDDR3 memory. It features 128 SPUs as well as 64 TAUs and 24 Rasterization Operator Units.

Compare that to the GeForce GTS 250 512MB, which comes with a clock speed of 738 MHz and a GDDR3 memory speed of 1100 MHz. It also makes use of a 256-bit bus, and makes use of a 65/55 nm design. It is made up of 128 SPUs, 64 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 250 512MB 145 Watts
GeForce 8800 GTX 155 Watts
Difference: 10 Watts (7%)

Memory Bandwidth

The GeForce 8800 GTX should in theory perform much faster than the GeForce GTS 250 512MB in general. (explain)

GeForce 8800 GTX 86400 MB/sec
GeForce GTS 250 512MB 70400 MB/sec
Difference: 16000 (23%)

Texel Rate

The GeForce GTS 250 512MB should be quite a bit (approximately 28%) more effective at texture filtering than the GeForce 8800 GTX. (explain)

GeForce GTS 250 512MB 47232 Mtexels/sec
GeForce 8800 GTX 36800 Mtexels/sec
Difference: 10432 (28%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce 8800 GTX is the winner, though only just barely. (explain)

GeForce 8800 GTX 13800 Mpixels/sec
GeForce GTS 250 512MB 11808 Mpixels/sec
Difference: 1992 (17%)

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

Display Prices

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GeForce 8800 GTX

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

Display Specifications

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Model GeForce 8800 GTX GeForce GTS 250 512MB
Manufacturer nVidia nVidia
Year Nov 2006 March 3, 2009
Code Name G80 G92a/b
Memory 768 MB 512 MB
Core Speed 575 MHz 738 MHz
Memory Speed 1800 MHz 2200 MHz
Power (Max TDP) 155 watts 145 watts
Bandwidth 86400 MB/sec 70400 MB/sec
Texel Rate 36800 Mtexels/sec 47232 Mtexels/sec
Pixel Rate 13800 Mpixels/sec 11808 Mpixels/sec
Unified Shaders 128 128
Texture Mapping Units 64 64
Render Output Units 24 16
Bus Type GDDR3 GDDR3
Bus Width 384-bit 256-bit
Fab Process 90 nm 65/55 nm
Transistors 681 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 (in units of MB per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units 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 processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record 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 core clock speed. ROPs (Raster Operations Pipelines - also sometimes called 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 max fill rate.

Display Prices

Hide Prices

GeForce 8800 GTX

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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