Radeon HD 5550 vs Radeon R9 M375X

Intro

Compare that to the Radeon R9 M375X, which makes use of a 28 nm design. AMD has set the core speed at 1015 MHz. The GDDR5 memory works at a speed of 1125 MHz on this specific model. 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

In theory, the Radeon R9 M375X should be 463% quicker than the Radeon HD 5550 overall, because of its greater data rate. (explain)

Radeon R9 M375X		72000 MB/sec
Radeon HD 5550		12800 MB/sec
	Difference: 59200 (463%)

Texel Rate

The Radeon R9 M375X should be quite a bit (about 361%) faster with regards to anisotropic filtering than the Radeon HD 5550. (explain)

Radeon R9 M375X		40600 Mtexels/sec
Radeon HD 5550		8800 Mtexels/sec
	Difference: 31800 (361%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 M375X is the winner, and very much so. (explain)

Radeon R9 M375X		16240 Mpixels/sec
Radeon HD 5550		4400 Mpixels/sec
	Difference: 11840 (269%)

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 (in units of MB per second) that can be moved past the external memory interface in one second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better 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 amount of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total 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 processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.