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GeForce 8600 GT 512MB DDR2 vs GeForce GT 220 GDDR3

Intro

The GeForce 8600 GT 512MB DDR2 features a core clock speed of 540 MHz and a DDR2 memory frequency of 400 MHz. It also uses a 128-bit memory bus, and makes use of a 80 nm design. It is comprised of 32 SPUs, 16 TAUs, and 8 Raster Operation Units.

Compare those specs to the GeForce GT 220 GDDR3, which features a core clock frequency of 625 MHz and a GDDR3 memory frequency of 1012 MHz. It also uses a 128-bit bus, and uses a 40 nm design. It is comprised of 48 SPUs, 16 TAUs, and 8 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 512MB DDR2 47 Watts
GeForce GT 220 GDDR3 58 Watts
Difference: 11 Watts (23%)

Memory Bandwidth

Performance-wise, the GeForce GT 220 GDDR3 should in theory be quite a bit better than the GeForce 8600 GT 512MB DDR2 overall. (explain)

GeForce GT 220 GDDR3 32384 MB/sec
GeForce 8600 GT 512MB DDR2 12800 MB/sec
Difference: 19584 (153%)

Texel Rate

The GeForce GT 220 GDDR3 should be a little bit (about 16%) more effective at AF than the GeForce 8600 GT 512MB DDR2. (explain)

GeForce GT 220 GDDR3 10000 Mtexels/sec
GeForce 8600 GT 512MB DDR2 8640 Mtexels/sec
Difference: 1360 (16%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GT 220 GDDR3 is superior to the GeForce 8600 GT 512MB DDR2, but it probably won't make a huge difference. (explain)

GeForce GT 220 GDDR3 5000 Mpixels/sec
GeForce 8600 GT 512MB DDR2 4320 Mpixels/sec
Difference: 680 (16%)

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 GT 220 GDDR3

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 GT 220 GDDR3
Manufacturer nVidia nVidia
Year April 2007 October 2009
Code Name G84 GT216
Memory 512 MB 512 MB
Core Speed 540 MHz 625 MHz
Memory Speed 800 MHz 2024 MHz
Power (Max TDP) 47 watts 58 watts
Bandwidth 12800 MB/sec 32384 MB/sec
Texel Rate 8640 Mtexels/sec 10000 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 5000 Mpixels/sec
Unified Shaders 32 48
Texture Mapping Units 16 16
Render Output Units 8 8
Bus Type DDR2 GDDR3
Bus Width 128-bit 128-bit
Fab Process 80 nm 40 nm
Transistors 289 million 486 million
Bus PCIe x16 PCIe 2.0
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in MB per second) that can be transferred over the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's 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 can be applied in one second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

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

Display Prices

Hide Prices

GeForce 8600 GT 512MB DDR2

Amazon.com

Check prices at:

GeForce GT 220 GDDR3

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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