GeForce GT 220 GDDR3 vs Radeon R9 280

Intro

Compare all of that to the Radeon R9 280, which has a GPU core clock speed of 933 MHz, and 3072 MB of GDDR5 RAM set to run at 1250 MHz through a 384-bit bus. It also features 1792 Stream Processors, 112 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3		58 Watts
Radeon R9 280		250 Watts
	Difference: 192 Watts (331%)

Memory Bandwidth

In theory, the Radeon R9 280 is 641% faster than the GeForce GT 220 GDDR3 overall, because of its greater bandwidth. (explain)

Radeon R9 280		240000 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 207616 (641%)

Texel Rate

The Radeon R9 280 is quite a bit (more or less 945%) more effective at AF than the GeForce GT 220 GDDR3. (explain)

Radeon R9 280		104496 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 94496 (945%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 280 is superior to the GeForce GT 220 GDDR3, by a large margin. (explain)

Radeon R9 280		29856 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 24856 (497%)

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 maximum amount of information (measured in megabytes per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is calculated by multiplying the total texture units of the card 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 per second.

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