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GeForce 8800 GTS (G80) 320MB vs GeForce 9800 GT 1GB

Intro

The GeForce 8800 GTS (G80) 320MB comes with a clock frequency of 513 MHz and a GDDR3 memory speed of 792 MHz. It also features a 320-bit memory bus, and makes use of a 90 nm design. It features 96 SPUs, 48 Texture Address Units, and 20 Raster Operation Units.

Compare all that to the GeForce 9800 GT 1GB, which comes with a clock speed of 600 MHz and a GDDR3 memory frequency of 900 MHz. It also features a 256-bit memory bus, and makes use of a 65/55 nm design. It is comprised of 112 SPUs, 56 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 1GB 105 Watts
GeForce 8800 GTS (G80) 320MB 143 Watts
Difference: 38 Watts (36%)

Memory Bandwidth

The GeForce 8800 GTS (G80) 320MB, in theory, should perform a bit faster than the GeForce 9800 GT 1GB overall. (explain)

GeForce 8800 GTS (G80) 320MB 63360 MB/sec
GeForce 9800 GT 1GB 57600 MB/sec
Difference: 5760 (10%)

Texel Rate

The GeForce 9800 GT 1GB is a lot (about 36%) better at anisotropic filtering than the GeForce 8800 GTS (G80) 320MB. (explain)

GeForce 9800 GT 1GB 33600 Mtexels/sec
GeForce 8800 GTS (G80) 320MB 24624 Mtexels/sec
Difference: 8976 (36%)

Pixel Rate

The GeForce 8800 GTS (G80) 320MB is just a bit (more or less 7%) faster with regards to anti-aliasing than the GeForce 9800 GT 1GB, and will be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce 8800 GTS (G80) 320MB 10260 Mpixels/sec
GeForce 9800 GT 1GB 9600 Mpixels/sec
Difference: 660 (7%)

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 (G80) 320MB

Amazon.com

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GeForce 9800 GT 1GB

Amazon.com

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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 (G80) 320MB GeForce 9800 GT 1GB
Manufacturer nVidia nVidia
Year Feb 2007 July 2008
Code Name G80 G92a/b
Memory 320 MB 1024 MB
Core Speed 513 MHz 600 MHz
Memory Speed 1584 MHz 1800 MHz
Power (Max TDP) 143 watts 105 watts
Bandwidth 63360 MB/sec 57600 MB/sec
Texel Rate 24624 Mtexels/sec 33600 Mtexels/sec
Pixel Rate 10260 Mpixels/sec 9600 Mpixels/sec
Unified Shaders 96 112
Texture Mapping Units 48 56
Render Output Units 20 16
Bus Type GDDR3 GDDR3
Bus Width 320-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 3.0

Memory Bandwidth: Bandwidth is the largest amount of data (measured in megabytes per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated 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 lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce 8800 GTS (G80) 320MB

Amazon.com

Check prices at:

GeForce 9800 GT 1GB

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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