Radeon HD 5570 vs Radeon R9 M390X

Intro

Compare those specs to the Radeon R9 M390X, which has GPU clock speed of 723 MHz, and 4096 MB of GDDR5 memory running at 1250 MHz through a 256-bit bus. It also features 2048 Stream Processors, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
Radeon R9 M390X		125 Watts
	Difference: 82 Watts (191%)

Memory Bandwidth

In theory, the Radeon R9 M390X should be 456% faster than the Radeon HD 5570 in general, because of its higher data rate. (explain)

Radeon R9 M390X		160000 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 131200 (456%)

Texel Rate

The Radeon R9 M390X should be much (about 612%) better at anisotropic filtering than the Radeon HD 5570. (explain)

Radeon R9 M390X		92544 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 79544 (612%)

Pixel Rate

The Radeon R9 M390X is a lot (approximately 345%) more effective at AA than the Radeon HD 5570, and should be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon R9 M390X		23136 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 17936 (345%)

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 data (measured in MB per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of 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 anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the video 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 most pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core clock speed. 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 many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.