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GeForce 8600 GTS vs GeForce GT 220 GDDR3

Intro

The GeForce 8600 GTS features a core clock frequency of 675 MHz and a GDDR3 memory frequency of 1000 MHz. It also uses a 128-bit bus, and uses a 80 nm design. It is made up of 32 SPUs, 16 TAUs, and 8 ROPs.

Compare those specifications to the GeForce GT 220 GDDR3, which comes with a core clock speed of 625 MHz and a GDDR3 memory frequency of 1012 MHz. It also features a 128-bit bus, and uses a 40 nm design. It is made up of 48 SPUs, 16 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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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

As far as performance goes, the GeForce GT 220 GDDR3 should theoretically be just a bit better 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 will be a little bit (more or less 8%) more effective 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

If using high levels of AA is important to you, then the GeForce 8600 GTS is superior to the GeForce GT 220 GDDR3, though only just barely. (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: Memory bandwidth is the max amount of information (counted in MB per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

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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