Radeon R7 M265 vs Radeon R9 M375

Intro

Compare that to the Radeon R9 M375, which uses a 28 nm design. AMD has clocked the core speed at 1015 MHz. The DDR3 memory runs at a frequency of 1100 MHz on this model. It features 640 SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon R9 M375 should be a small bit faster than the Radeon R7 M265 in general. (explain)

Radeon R9 M375		35200 MB/sec
Radeon R7 M265		32000 MB/sec
	Difference: 3200 (10%)

Texel Rate

The Radeon R9 M375 will be a lot (about 133%) more effective at AF than the Radeon R7 M265. (explain)

Radeon R9 M375		40600 Mtexels/sec
Radeon R7 M265		17400 Mtexels/sec
	Difference: 23200 (133%)

Pixel Rate

The Radeon R9 M375 should be a lot (approximately 180%) better at full screen anti-aliasing than the Radeon R7 M265, and will be able to handle higher screen resolutions better. (explain)

Radeon R9 M375		16240 Mpixels/sec
Radeon R7 M265		5800 Mpixels/sec
	Difference: 10440 (180%)

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 information (measured in MB per second) that can be transported across the external memory interface in one second. It's 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 it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics 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 the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.