GeForce 8800 GS vs GeForce GT 220 GDDR3

Intro

Compare those specifications to the GeForce GT 220 GDDR3, which has clock speeds of 625 MHz on the GPU, and 1012 MHz on the 512 MB of GDDR3 RAM. It features 48 SPUs along with 16 Texture Address Units and 8 ROPs.

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 speaking, the GeForce 8800 GS will be 19% quicker than the GeForce GT 220 GDDR3 overall, because of its greater data rate. (explain)

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

Texel Rate

The GeForce 8800 GS will be quite a bit (approximately 164%) faster with regards to 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 a high resolution is important to you, then the GeForce 8800 GS is superior to the GeForce GT 220 GDDR3, by a large margin. (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 maximum amount of information (measured in megabytes per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. In the case of DDR memory, it should 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 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 calculated by multiplying the total amount of texture units by the core speed of the chip. The higher 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 maximum amount of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of 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.