GeForce GT 220 GDDR3 vs Radeon HD 6950

Intro

Compare all that to the Radeon HD 6950, which makes use of a 40 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR5 memory is set to run at a frequency of 1250 MHz on this specific card. It features 1408 SPUs along with 88 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3		58 Watts
Radeon HD 6950		200 Watts
	Difference: 142 Watts (245%)

Memory Bandwidth

In theory, the Radeon HD 6950 is 394% quicker than the GeForce GT 220 GDDR3 in general, because of its greater bandwidth. (explain)

Radeon HD 6950		160000 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 127616 (394%)

Texel Rate

The Radeon HD 6950 will be quite a bit (approximately 604%) more effective at texture filtering than the GeForce GT 220 GDDR3. (explain)

Radeon HD 6950		70400 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 60400 (604%)

Pixel Rate

The Radeon HD 6950 will be a lot (about 412%) faster with regards to AA than the GeForce GT 220 GDDR3, and also will be capable of handling higher resolutions better. (explain)

Radeon HD 6950		25600 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 20600 (412%)

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

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This is worked out 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 processed in one second.

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