GeForce GT 220 GDDR3 vs Radeon R9 M375X

Intro

Compare those specifications to the Radeon R9 M375X, which comes with a clock speed of 1015 MHz and a GDDR5 memory speed of 1125 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It is comprised of 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M375X will be 122% faster than the GeForce GT 220 GDDR3 in general, because of its greater bandwidth. (explain)

Radeon R9 M375X		72000 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 39616 (122%)

Texel Rate

The Radeon R9 M375X is a lot (about 306%) more effective at anisotropic filtering than the GeForce GT 220 GDDR3. (explain)

Radeon R9 M375X		40600 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 30600 (306%)

Pixel Rate

The Radeon R9 M375X will be much (about 225%) more effective at FSAA than the GeForce GT 220 GDDR3, and also should be capable of handling higher resolutions without slowing down too much. (explain)

Radeon R9 M375X		16240 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 11240 (225%)

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 information (counted in megabytes per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.