Radeon R9 M290X vs Radeon RX 570

Intro

Compare that to the Radeon RX 570, which comes with core speeds of 1168 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M290X		100 Watts
Radeon RX 570		150 Watts
	Difference: 50 Watts (50%)

Memory Bandwidth

In theory, the Radeon RX 570 will be 49% quicker than the Radeon R9 M290X overall, because of its greater bandwidth. (explain)

Radeon RX 570		229376 MB/sec
Radeon R9 M290X		153600 MB/sec
	Difference: 75776 (49%)

Texel Rate

The Radeon RX 570 will be a lot (more or less 120%) more effective at anisotropic filtering than the Radeon R9 M290X. (explain)

Radeon RX 570		149504 Mtexels/sec
Radeon R9 M290X		68000 Mtexels/sec
	Difference: 81504 (120%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 570 is the winner, and very much so. (explain)

Radeon RX 570		37376 Mpixels/sec
Radeon R9 M290X		27200 Mpixels/sec
	Difference: 10176 (37%)

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 max amount of information (in units of megabytes per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum 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 clock speed of the chip. The higher the texel rate, the better the 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 most pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core 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 fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.