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GeForce 8600 GT 256MB DDR2 vs GeForce GTX 470

Intro

The GeForce 8600 GT 256MB DDR2 features a GPU clock speed of 540 MHz, and the 256 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 ROPs.

Compare all that to the GeForce GTX 470, which comes with a GPU core clock speed of 607 MHz, and 1280 MB of GDDR5 memory running at 837 MHz through a 320-bit bus. It also is comprised of 448 Stream Processors, 56 Texture Address Units, and 40 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 256MB DDR2 47 Watts
GeForce GTX 470 215 Watts
Difference: 168 Watts (357%)

Memory Bandwidth

In theory, the GeForce GTX 470 should be 946% faster than the GeForce 8600 GT 256MB DDR2 overall, because of its higher bandwidth. (explain)

GeForce GTX 470 133920 MB/sec
GeForce 8600 GT 256MB DDR2 12800 MB/sec
Difference: 121120 (946%)

Texel Rate

The GeForce GTX 470 will be quite a bit (about 293%) faster with regards to texture filtering than the GeForce 8600 GT 256MB DDR2. (explain)

GeForce GTX 470 33992 Mtexels/sec
GeForce 8600 GT 256MB DDR2 8640 Mtexels/sec
Difference: 25352 (293%)

Pixel Rate

The GeForce GTX 470 is much (approximately 462%) more effective at anti-aliasing than the GeForce 8600 GT 256MB DDR2, and also able to handle higher resolutions while still performing well. (explain)

GeForce GTX 470 24280 Mpixels/sec
GeForce 8600 GT 256MB DDR2 4320 Mpixels/sec
Difference: 19960 (462%)

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 256MB DDR2

Amazon.com

Check prices at:

GeForce GTX 470

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 256MB DDR2 GeForce GTX 470
Manufacturer nVidia nVidia
Year April 2007 March 2010
Code Name G84 GF100
Memory 256 MB 1280 MB
Core Speed 540 MHz 607 MHz
Memory Speed 800 MHz 3348 MHz
Power (Max TDP) 47 watts 215 watts
Bandwidth 12800 MB/sec 133920 MB/sec
Texel Rate 8640 Mtexels/sec 33992 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 24280 Mpixels/sec
Unified Shaders 32 448
Texture Mapping Units 16 56
Render Output Units 8 40
Bus Type DDR2 GDDR5
Bus Width 128-bit 320-bit
Fab Process 80 nm 40 nm
Transistors 289 million 3000 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

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

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock 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 also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce 8600 GT 256MB DDR2

Amazon.com

Check prices at:

GeForce GTX 470

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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