Radeon HD 5770 vs Radeon R9 M375

Intro

Compare all that to the Radeon R9 M375, which has core clock speeds of 1015 MHz on the GPU, and 1100 MHz on the 4096 MB of DDR3 memory. It features 640 SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon HD 5770 should in theory be quite a bit superior to 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 is a small bit (more or less 19%) more effective at texture filtering than the Radeon HD 5770. (explain)

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

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 M375 is superior to the Radeon HD 5770, but it probably won't make a huge difference. (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: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.