Radeon R7 370 2G vs Radeon R9 M275X

Intro

Compare all that to the Radeon R9 M275X, which comes with a clock speed of 900 MHz and a GDDR5 memory frequency of 1125 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It features 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M275X		50 Watts
Radeon R7 370 2G		110 Watts
	Difference: 60 Watts (120%)

Memory Bandwidth

Theoretically, the Radeon R7 370 2G should perform quite a bit faster than the Radeon R9 M275X in general. (explain)

Radeon R7 370 2G		179200 MB/sec
Radeon R9 M275X		72000 MB/sec
	Difference: 107200 (149%)

Texel Rate

The Radeon R7 370 2G will be a lot (about 73%) faster with regards to texture filtering than the Radeon R9 M275X. (explain)

Radeon R7 370 2G		62400 Mtexels/sec
Radeon R9 M275X		36000 Mtexels/sec
	Difference: 26400 (73%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R7 370 2G is the winner, and very much so. (explain)

Radeon R7 370 2G		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 largest amount of data (in units of megabytes per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 amount 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 video 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 most pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.