GeForce 8800 GS vs GeForce GT 220 GDDR3

Intro

Compare all that to the GeForce GT 220 GDDR3, which makes use of a 40 nm design. nVidia has set the core frequency at 625 MHz. The GDDR3 RAM works at a speed of 1012 MHz on this particular card. It features 48 SPUs along with 16 TAUs 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

As far as performance goes, the GeForce 8800 GS should theoretically be a little bit superior to 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 will be quite a bit (about 164%) faster with regards to AF 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

The GeForce 8800 GS will be a lot (approximately 32%) faster with regards to AA than the GeForce GT 220 GDDR3, and also will be capable of handling higher screen resolutions without losing too much performance. (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 data (in units of MB per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 texture map elements (texels) that can be processed per second. This is calculated 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 processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.