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GeForce 8800 GTX vs GeForce GTS 250 512MB

Intro

The GeForce 8800 GTX comes with a core clock speed of 575 MHz and a GDDR3 memory speed of 900 MHz. It also features a 384-bit bus, and uses a 90 nm design. It is made up of 128 SPUs, 64 TAUs, and 24 Raster Operation Units.

Compare those specifications to the GeForce GTS 250 512MB, which comes with GPU clock speed of 738 MHz, and 512 MB of GDDR3 RAM running at 1100 MHz through a 256-bit bus. It also is comprised of 128 SPUs, 64 TAUs, and 16 Raster Operation Units.

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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 overall. (explain)

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

Texel Rate

The GeForce GTS 250 512MB will be much (more or less 28%) faster with regards to 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

The GeForce 8800 GTX should be just a bit (about 17%) better at FSAA than the GeForce GTS 250 512MB, and also will be capable of handling higher resolutions without losing too much performance. (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

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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

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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 largest amount of information (in units of megabytes per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it should 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 anti-aliasing, High Dynamic Range and high resolutions.

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

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