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GeForce 8600 GT 512MB DDR2 vs GeForce 8800 GTS (G92)

Intro

The GeForce 8600 GT 512MB DDR2 features a GPU core speed of 540 MHz, and the 512 MB of DDR2 memory is set to run at 400 MHz through a 128-bit bus. It also features 32 Stream Processors, 16 Texture Address Units, and 8 Raster Operation Units.

Compare that to the GeForce 8800 GTS (G92), which has a clock speed of 650 MHz and a GDDR3 memory frequency of 970 MHz. It also uses a 256-bit bus, and makes use of a 65 nm design. It is made up of 128 SPUs, 64 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 512MB DDR2 47 Watts
GeForce 8800 GTS (G92) 135 Watts
Difference: 88 Watts (187%)

Memory Bandwidth

In theory, the GeForce 8800 GTS (G92) is 385% quicker than the GeForce 8600 GT 512MB DDR2 overall, due to its greater bandwidth. (explain)

GeForce 8800 GTS (G92) 62080 MB/sec
GeForce 8600 GT 512MB DDR2 12800 MB/sec
Difference: 49280 (385%)

Texel Rate

The GeForce 8800 GTS (G92) is a lot (approximately 381%) better at AF than the GeForce 8600 GT 512MB DDR2. (explain)

GeForce 8800 GTS (G92) 41600 Mtexels/sec
GeForce 8600 GT 512MB DDR2 8640 Mtexels/sec
Difference: 32960 (381%)

Pixel Rate

The GeForce 8800 GTS (G92) should be a lot (approximately 141%) faster with regards to anti-aliasing than the GeForce 8600 GT 512MB DDR2, and also should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce 8800 GTS (G92) 10400 Mpixels/sec
GeForce 8600 GT 512MB DDR2 4320 Mpixels/sec
Difference: 6080 (141%)

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 8600 GT 512MB DDR2

Amazon.com

Check prices at:

GeForce 8800 GTS (G92)

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 8600 GT 512MB DDR2 GeForce 8800 GTS (G92)
Manufacturer nVidia nVidia
Year April 2007 Dec 2007
Code Name G84 G92
Memory 512 MB 512 MB
Core Speed 540 MHz 650 MHz
Memory Speed 800 MHz 1940 MHz
Power (Max TDP) 47 watts 135 watts
Bandwidth 12800 MB/sec 62080 MB/sec
Texel Rate 8640 Mtexels/sec 41600 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 10400 Mpixels/sec
Unified Shaders 32 128
Texture Mapping Units 16 64
Render Output Units 8 16
Bus Type DDR2 GDDR3
Bus Width 128-bit 256-bit
Fab Process 80 nm 65 nm
Transistors 289 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 max amount of data (counted in MB per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the bus width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units of the card 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number 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 rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce 8600 GT 512MB DDR2

Amazon.com

Check prices at:

GeForce 8800 GTS (G92)

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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