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GeForce 8600 GTS vs GeForce GT 220 GDDR3

Intro

The GeForce 8600 GTS comes with a GPU core clock speed of 675 MHz, and the 512 MB of GDDR3 memory runs at 1000 MHz through a 128-bit bus. It also features 32 Stream Processors, 16 TAUs, and 8 Raster Operation Units.

Compare those specifications to the GeForce GT 220 GDDR3, which uses a 40 nm design. nVidia has clocked the core frequency at 625 MHz. The GDDR3 RAM runs at a frequency of 1012 MHz on this particular card. It features 48 SPUs along with 16 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3 58 Watts
GeForce 8600 GTS 75 Watts
Difference: 17 Watts (29%)

Memory Bandwidth

The GeForce GT 220 GDDR3 should in theory perform a little bit faster than the GeForce 8600 GTS overall. (explain)

GeForce GT 220 GDDR3 32384 MB/sec
GeForce 8600 GTS 32000 MB/sec
Difference: 384 (1%)

Texel Rate

The GeForce 8600 GTS is a little bit (approximately 8%) better at texture filtering than the GeForce GT 220 GDDR3. (explain)

GeForce 8600 GTS 10800 Mtexels/sec
GeForce GT 220 GDDR3 10000 Mtexels/sec
Difference: 800 (8%)

Pixel Rate

The GeForce 8600 GTS is a little bit (about 8%) better at anti-aliasing than the GeForce GT 220 GDDR3, and able to handle higher resolutions without losing too much performance. (explain)

GeForce 8600 GTS 5400 Mpixels/sec
GeForce GT 220 GDDR3 5000 Mpixels/sec
Difference: 400 (8%)

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 GTS

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 GTS GeForce GT 220 GDDR3
Manufacturer nVidia nVidia
Year April 2007 October 2009
Code Name G84 GT216
Memory 512 MB 512 MB
Core Speed 675 MHz 625 MHz
Memory Speed 2000 MHz 2024 MHz
Power (Max TDP) 75 watts 58 watts
Bandwidth 32000 MB/sec 32384 MB/sec
Texel Rate 10800 Mtexels/sec 10000 Mtexels/sec
Pixel Rate 5400 Mpixels/sec 5000 Mpixels/sec
Unified Shaders 32 48
Texture Mapping Units 16 16
Render Output Units 8 8
Bus Type GDDR3 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: Bandwidth is the maximum amount of information (in units of MB per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the 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 chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce 8600 GTS

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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