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GeForce 8800 GTS (G92) vs GeForce 9800 GTX

Intro

The GeForce 8800 GTS (G92) has a core clock speed of 650 MHz and a GDDR3 memory speed of 970 MHz. It also uses a 256-bit bus, and uses a 65 nm design. It features 128 SPUs, 64 TAUs, and 16 Raster Operation Units.

Compare all that to the GeForce 9800 GTX, which has GPU clock speed of 675 MHz, and 512 MB of GDDR3 RAM set to run at 1100 MHz through a 256-bit bus. It also is comprised of 128 SPUs, 64 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G92) 135 Watts
GeForce 9800 GTX 140 Watts
Difference: 5 Watts (4%)

Memory Bandwidth

Performance-wise, the GeForce 9800 GTX should theoretically be a bit better than the GeForce 8800 GTS (G92) overall. (explain)

GeForce 9800 GTX 70400 MB/sec
GeForce 8800 GTS (G92) 62080 MB/sec
Difference: 8320 (13%)

Texel Rate

The GeForce 9800 GTX will be a small bit (about 4%) better at AF than the GeForce 8800 GTS (G92). (explain)

GeForce 9800 GTX 43200 Mtexels/sec
GeForce 8800 GTS (G92) 41600 Mtexels/sec
Difference: 1600 (4%)

Pixel Rate

The GeForce 9800 GTX is just a bit (more or less 4%) better at FSAA than the GeForce 8800 GTS (G92), and also will be capable of handling higher resolutions without losing too much performance. (explain)

GeForce 9800 GTX 10800 Mpixels/sec
GeForce 8800 GTS (G92) 10400 Mpixels/sec
Difference: 400 (4%)

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 GTS (G92)

Amazon.com

Check prices at:

GeForce 9800 GTX

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 GTS (G92) GeForce 9800 GTX
Manufacturer nVidia nVidia
Year Dec 2007 April 2008
Code Name G92 G92
Memory 512 MB 512 MB
Core Speed 650 MHz 675 MHz
Memory Speed 1940 MHz 2200 MHz
Power (Max TDP) 135 watts 140 watts
Bandwidth 62080 MB/sec 70400 MB/sec
Texel Rate 41600 Mtexels/sec 43200 Mtexels/sec
Pixel Rate 10400 Mpixels/sec 10800 Mpixels/sec
Unified Shaders 128 128
Texture Mapping Units 64 64
Render Output Units 16 16
Bus Type GDDR3 GDDR3
Bus Width 256-bit 256-bit
Fab Process 65 nm 65 nm
Transistors 754 million 754 million
Bus PCIe x16 2.0 PCIe x16 2.0
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of MB per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 amount of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better 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 one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the card's 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 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 reach the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GTS (G92)

Amazon.com

Check prices at:

GeForce 9800 GTX

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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