Radeon R7 370 4G vs Radeon R9 M275X

Intro

Compare all that to the Radeon R9 M275X, which features core clock speeds of 900 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 memory. It features 640 SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M275X		50 Watts
Radeon R7 370 4G		110 Watts
	Difference: 60 Watts (120%)

Memory Bandwidth

Theoretically speaking, the Radeon R7 370 4G should be a lot faster than the Radeon R9 M275X overall. (explain)

Radeon R7 370 4G		179200 MB/sec
Radeon R9 M275X		72000 MB/sec
	Difference: 107200 (149%)

Texel Rate

The Radeon R7 370 4G is much (about 73%) faster with regards to AF than the Radeon R9 M275X. (explain)

Radeon R7 370 4G		62400 Mtexels/sec
Radeon R9 M275X		36000 Mtexels/sec
	Difference: 26400 (73%)

Pixel Rate

The Radeon R7 370 4G will be a lot (more or less 117%) more effective at anti-aliasing than the Radeon R9 M275X, and also able to handle higher screen resolutions while still performing well. (explain)

Radeon R7 370 4G		31200 Mpixels/sec
Radeon R9 M275X		14400 Mpixels/sec
	Difference: 16800 (117%)

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 one second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, 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 figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

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