Radeon R7 250 vs Radeon RX 560

Intro

Compare all that to the Radeon RX 560, which has a clock speed of 1175 MHz and a GDDR5 memory frequency of 1750 MHz. It also makes use of a 128-bit memory bus, and makes use of a 14 nm design. It features 1024 SPUs, 64 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
Radeon RX 560		80 Watts
	Difference: 15 Watts (23%)

Memory Bandwidth

The Radeon RX 560 should theoretically be quite a bit faster than the Radeon R7 250 in general. (explain)

Radeon RX 560		114688 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 41088 (56%)

Texel Rate

The Radeon RX 560 will be quite a bit (about 213%) better at AF than the Radeon R7 250. (explain)

Radeon RX 560		75200 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 51200 (213%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 560 is the winner, by a large margin. (explain)

Radeon RX 560		18800 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 10800 (135%)

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 largest amount of data (measured in MB per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.