Radeon HD 5550 vs Radeon R9 M365X

Intro

Compare those specs to the Radeon R9 M365X, which features a GPU core clock speed of 925 MHz, and 4096 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also is comprised of 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M365X should theoretically perform a lot faster than the Radeon HD 5550 in general. (explain)

Radeon R9 M365X		72000 MB/sec
Radeon HD 5550		12800 MB/sec
	Difference: 59200 (463%)

Texel Rate

The Radeon R9 M365X should be a lot (approximately 320%) more effective at texture filtering than the Radeon HD 5550. (explain)

Radeon R9 M365X		37000 Mtexels/sec
Radeon HD 5550		8800 Mtexels/sec
	Difference: 28200 (320%)

Pixel Rate

The Radeon R9 M365X is quite a bit (approximately 236%) better at full screen anti-aliasing than the Radeon HD 5550, and will be able to handle higher screen resolutions better. (explain)

Radeon R9 M365X		14800 Mpixels/sec
Radeon HD 5550		4400 Mpixels/sec
	Difference: 10400 (236%)

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 max amount of information (measured in megabytes per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total texture units of the card by the core clock 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 the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.