GeForce 8800 GS vs GeForce GT 220 GDDR3

Intro

Compare that to the GeForce GT 220 GDDR3, which comes with core clock speeds of 625 MHz on the GPU, and 1012 MHz on the 512 MB of GDDR3 memory. It features 48 SPUs as well as 16 TAUs and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3		58 Watts
GeForce 8800 GS		105 Watts
	Difference: 47 Watts (81%)

Memory Bandwidth

Theoretically, the GeForce 8800 GS should perform a little bit faster than the GeForce GT 220 GDDR3 in general. (explain)

GeForce 8800 GS		38400 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 6016 (19%)

Texel Rate

The GeForce 8800 GS is a lot (approximately 164%) more effective at texture filtering than the GeForce GT 220 GDDR3. (explain)

GeForce 8800 GS		26400 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 16400 (164%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce 8800 GS is a better choice, by far. (explain)

GeForce 8800 GS		6600 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 1600 (32%)

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

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.