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GeForce 8800 GS vs GeForce 8800 GTS (G80) 320MB

Intro

The GeForce 8800 GS comes with a core clock frequency of 550 MHz and a GDDR3 memory frequency of 800 MHz. It also makes use of a 192-bit memory bus, and uses a 65 nm design. It is comprised of 96 SPUs, 48 Texture Address Units, and 12 Raster Operation Units.

Compare those specs to the GeForce 8800 GTS (G80) 320MB, which has GPU core speed of 513 MHz, and 320 MB of GDDR3 memory set to run at 792 MHz through a 320-bit bus. It also is comprised of 96 SPUs, 48 TAUs, and 20 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GS 105 Watts
GeForce 8800 GTS (G80) 320MB 143 Watts
Difference: 38 Watts (36%)

Memory Bandwidth

Theoretically, the GeForce 8800 GTS (G80) 320MB should perform much faster than the GeForce 8800 GS overall. (explain)

GeForce 8800 GTS (G80) 320MB 63360 MB/sec
GeForce 8800 GS 38400 MB/sec
Difference: 24960 (65%)

Texel Rate

The GeForce 8800 GS is a small bit (approximately 7%) faster with regards to AF than the GeForce 8800 GTS (G80) 320MB. (explain)

GeForce 8800 GS 26400 Mtexels/sec
GeForce 8800 GTS (G80) 320MB 24624 Mtexels/sec
Difference: 1776 (7%)

Pixel Rate

If using a high resolution is important to you, then the GeForce 8800 GTS (G80) 320MB is a better choice, by far. (explain)

GeForce 8800 GTS (G80) 320MB 10260 Mpixels/sec
GeForce 8800 GS 6600 Mpixels/sec
Difference: 3660 (55%)

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 GS

Amazon.com

Check prices at:

GeForce 8800 GTS (G80) 320MB

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 GS GeForce 8800 GTS (G80) 320MB
Manufacturer nVidia nVidia
Year Jan 2008 Feb 2007
Code Name G92 G80
Memory 384 MB 320 MB
Core Speed 550 MHz 513 MHz
Memory Speed 1600 MHz 1584 MHz
Power (Max TDP) 105 watts 143 watts
Bandwidth 38400 MB/sec 63360 MB/sec
Texel Rate 26400 Mtexels/sec 24624 Mtexels/sec
Pixel Rate 6600 Mpixels/sec 10260 Mpixels/sec
Unified Shaders 96 96
Texture Mapping Units 48 48
Render Output Units 12 20
Bus Type GDDR3 GDDR3
Bus Width 192-bit 320-bit
Fab Process 65 nm 90 nm
Transistors 754 million 681 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of MB per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This number is worked out 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 video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core speed of the card. 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 lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GS

Amazon.com

Check prices at:

GeForce 8800 GTS (G80) 320MB

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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