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GeForce 8800 GT 1GB vs GeForce 9800 GTX

Intro

The GeForce 8800 GT 1GB uses a 65 nm design. nVidia has set the core speed at 600 MHz. The GDDR3 RAM runs at a frequency of 900 MHz on this particular card. It features 112 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

Compare all of that to the GeForce 9800 GTX, which uses a 65 nm design. nVidia has clocked the core frequency at 675 MHz. The GDDR3 memory is set to run at a frequency of 1100 MHz on this model. It features 128 SPUs as well as 64 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 1GB 105 Watts
GeForce 9800 GTX 140 Watts
Difference: 35 Watts (33%)

Memory Bandwidth

As far as performance goes, the GeForce 9800 GTX should in theory be quite a bit better than the GeForce 8800 GT 1GB overall. (explain)

GeForce 9800 GTX 70400 MB/sec
GeForce 8800 GT 1GB 57600 MB/sec
Difference: 12800 (22%)

Texel Rate

The GeForce 9800 GTX is a lot (about 29%) faster with regards to anisotropic filtering than the GeForce 8800 GT 1GB. (explain)

GeForce 9800 GTX 43200 Mtexels/sec
GeForce 8800 GT 1GB 33600 Mtexels/sec
Difference: 9600 (29%)

Pixel Rate

The GeForce 9800 GTX is a small bit (more or less 13%) faster with regards to anti-aliasing than the GeForce 8800 GT 1GB, and will be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce 9800 GTX 10800 Mpixels/sec
GeForce 8800 GT 1GB 9600 Mpixels/sec
Difference: 1200 (13%)

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 GT 1GB

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 GT 1GB GeForce 9800 GTX
Manufacturer nVidia nVidia
Year Dec 2007 April 2008
Code Name G92 G92
Memory 1024 MB 512 MB
Core Speed 600 MHz 675 MHz
Memory Speed 1800 MHz 2200 MHz
Power (Max TDP) 105 watts 140 watts
Bandwidth 57600 MB/sec 70400 MB/sec
Texel Rate 33600 Mtexels/sec 43200 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 10800 Mpixels/sec
Unified Shaders 112 128
Texture Mapping Units 56 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 past the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

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

Display Prices

Hide Prices

GeForce 8800 GT 1GB

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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