Radeon R9 M385X vs Radeon RX 570

Intro

Compare all that to the Radeon RX 570, which makes use of a 14 nm design. AMD has clocked the core speed at 1168 MHz. The GDDR5 RAM is set to run at a speed of 1750 MHz on this specific model. It features 2048 SPUs as well as 128 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon RX 570 should be 139% quicker than the Radeon R9 M385X in general, due to its greater bandwidth. (explain)

Radeon RX 570		229376 MB/sec
Radeon R9 M385X		96000 MB/sec
	Difference: 133376 (139%)

Texel Rate

The Radeon RX 570 will be a lot (more or less 143%) more effective at AF than the Radeon R9 M385X. (explain)

Radeon RX 570		149504 Mtexels/sec
Radeon R9 M385X		61600 Mtexels/sec
	Difference: 87904 (143%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 570 is superior to the Radeon R9 M385X, and very much so. (explain)

Radeon RX 570		37376 Mpixels/sec
Radeon R9 M385X		17600 Mpixels/sec
	Difference: 19776 (112%)

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 largest amount of information (in units of megabytes per second) that can be transferred over the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 once again. If 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics 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 maximum amount of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core 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 output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.