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GeForce 8800 GTS (G92) vs GeForce 9800 GTX+

Intro

The GeForce 8800 GTS (G92) uses a 65 nm design. nVidia has clocked the core speed at 650 MHz. The GDDR3 RAM works at a frequency of 970 MHz on this card. It features 128 SPUs along with 64 Texture Address Units and 16 ROPs.

Compare that to the GeForce 9800 GTX+, which has GPU clock speed of 738 MHz, and 512 MB of GDDR3 memory 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+ 145 Watts
Difference: 10 Watts (7%)

Memory Bandwidth

Theoretically speaking, the GeForce 9800 GTX+ will be 13% quicker than the GeForce 8800 GTS (G92) overall, due to its greater data rate. (explain)

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

Texel Rate

The GeForce 9800 GTX+ should be a bit (about 14%) more effective at AF than the GeForce 8800 GTS (G92). (explain)

GeForce 9800 GTX+ 47232 Mtexels/sec
GeForce 8800 GTS (G92) 41600 Mtexels/sec
Difference: 5632 (14%)

Pixel Rate

The GeForce 9800 GTX+ should be just a bit (more or less 14%) faster with regards to AA than the GeForce 8800 GTS (G92), and able to handle higher screen resolutions without slowing down too much. (explain)

GeForce 9800 GTX+ 11808 Mpixels/sec
GeForce 8800 GTS (G92) 10400 Mpixels/sec
Difference: 1408 (14%)

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 July 2008
Code Name G92 G92b
Memory 512 MB 512 MB
Core Speed 650 MHz 738 MHz
Memory Speed 1940 MHz 2200 MHz
Power (Max TDP) 135 watts 145 watts
Bandwidth 62080 MB/sec 70400 MB/sec
Texel Rate 41600 Mtexels/sec 47232 Mtexels/sec
Pixel Rate 10400 Mpixels/sec 11808 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 55 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: Bandwidth is the max amount of information (counted in MB per second) that can be transferred across the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is worked out by multiplying the total amount of 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 in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to 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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