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GeForce 8600 GT 512MB DDR2 vs GeForce GTX 275

Intro

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

Compare those specs to the GeForce GTX 275, which makes use of a 55 nm design. nVidia has set the core speed at 633 MHz. The GDDR3 RAM works at a frequency of 1134 MHz on this specific model. It features 240 SPUs as well as 80 Texture Address Units and 28 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 512MB DDR2 47 Watts
GeForce GTX 275 219 Watts
Difference: 172 Watts (366%)

Memory Bandwidth

The GeForce GTX 275, in theory, should perform much faster than the GeForce 8600 GT 512MB DDR2 overall. (explain)

GeForce GTX 275 127008 MB/sec
GeForce 8600 GT 512MB DDR2 12800 MB/sec
Difference: 114208 (892%)

Texel Rate

The GeForce GTX 275 will be quite a bit (more or less 486%) better at AF than the GeForce 8600 GT 512MB DDR2. (explain)

GeForce GTX 275 50640 Mtexels/sec
GeForce 8600 GT 512MB DDR2 8640 Mtexels/sec
Difference: 42000 (486%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 275 is the winner, and very much so. (explain)

GeForce GTX 275 17724 Mpixels/sec
GeForce 8600 GT 512MB DDR2 4320 Mpixels/sec
Difference: 13404 (310%)

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 GTX 275

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 GTX 275
Manufacturer nVidia nVidia
Year April 2007 April 9, 2009
Code Name G84 G200b
Memory 512 MB 896 MB
Core Speed 540 MHz 633 MHz
Memory Speed 800 MHz 2268 MHz
Power (Max TDP) 47 watts 219 watts
Bandwidth 12800 MB/sec 127008 MB/sec
Texel Rate 8640 Mtexels/sec 50640 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 17724 Mpixels/sec
Unified Shaders 32 240
Texture Mapping Units 16 80
Render Output Units 8 28
Bus Type DDR2 GDDR3
Bus Width 128-bit 448-bit
Fab Process 80 nm 55 nm
Transistors 289 million 1400 million
Bus PCIe x16 PCIe x16 2.0
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.1

Memory Bandwidth: Bandwidth is the largest amount of data (counted in megabytes per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better 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 number of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total texture units 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce 8600 GT 512MB DDR2

Amazon.com

Check prices at:

GeForce GTX 275

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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