GeForce GT 220 GDDR3 vs Radeon R9 M375X

Intro

Compare all that to the Radeon R9 M375X, which comes with clock speeds of 1015 MHz on the GPU, and 1125 MHz on the 4096 MB of GDDR5 memory. It features 640 SPUs as well as 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M375X should be 122% faster than the GeForce GT 220 GDDR3 in general, due to its higher bandwidth. (explain)

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

Texel Rate

The Radeon R9 M375X will be much (more or less 306%) faster with regards to texture 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

If using a high screen resolution is important to you, then the Radeon R9 M375X is superior to the GeForce GT 220 GDDR3, by far. (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 (in units of MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. 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 high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.