GeForce GT 220 GDDR3 vs Radeon R9 M280X

Intro

Compare all of that to the Radeon R9 M280X, which comes with GPU core speed of 900 MHz, and 4096 MB of GDDR5 RAM set to run at 1375 MHz through a 128-bit bus. It also is made up of 896 Stream Processors, 56 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3		58 Watts
Radeon R9 M280X		75 Watts
	Difference: 17 Watts (29%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M280X should be quite a bit faster than the GeForce GT 220 GDDR3 overall. (explain)

Radeon R9 M280X		88000 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 55616 (172%)

Texel Rate

The Radeon R9 M280X is much (more or less 404%) better at texture filtering than the GeForce GT 220 GDDR3. (explain)

Radeon R9 M280X		50400 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 40400 (404%)

Pixel Rate

The Radeon R9 M280X should be much (about 188%) faster with regards to anti-aliasing than the GeForce GT 220 GDDR3, and should be able to handle higher resolutions without slowing down too much. (explain)

Radeon R9 M280X		14400 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 9400 (188%)

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 moved past the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

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