Radeon HD 5550 vs Radeon R9 M375

Intro

Compare all of that to the Radeon R9 M375, which comes with a clock frequency of 1015 MHz and a DDR3 memory frequency of 1100 MHz. It also features a 128-bit bus, and uses a 28 nm design. It is comprised of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R9 M375 should theoretically be a lot better than the Radeon HD 5550 in general. (explain)

Radeon R9 M375		35200 MB/sec
Radeon HD 5550		12800 MB/sec
	Difference: 22400 (175%)

Texel Rate

The Radeon R9 M375 will be a lot (approximately 361%) faster with regards to AF than the Radeon HD 5550. (explain)

Radeon R9 M375		40600 Mtexels/sec
Radeon HD 5550		8800 Mtexels/sec
	Difference: 31800 (361%)

Pixel Rate

The Radeon R9 M375 is a lot (more or less 269%) faster with regards to AA than the Radeon HD 5550, and will be capable of handling higher screen resolutions while still performing well. (explain)

Radeon R9 M375		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: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the interface width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 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 anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in a 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 called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.