Radeon HD 5770 vs Radeon R9 M375

Intro

Compare those specifications to the Radeon R9 M375, which features clock speeds of 1015 MHz on the GPU, and 1100 MHz on the 4096 MB of DDR3 memory. It features 640 SPUs along with 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 5770, in theory, should be quite a bit faster than the Radeon R9 M375 overall. (explain)

Radeon HD 5770		76800 MB/sec
Radeon R9 M375		35200 MB/sec
	Difference: 41600 (118%)

Texel Rate

The Radeon R9 M375 should be a small bit (more or less 19%) more effective at AF than the Radeon HD 5770. (explain)

Radeon R9 M375		40600 Mtexels/sec
Radeon HD 5770		34000 Mtexels/sec
	Difference: 6600 (19%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 M375 is a better choice, but only just. (explain)

Radeon R9 M375		16240 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 2640 (19%)

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: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video 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 most pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.