Radeon R7 250 vs Radeon RX 560

Intro

Compare those specs to the Radeon RX 560, which uses a 14 nm design. AMD has clocked the core frequency at 1175 MHz. The GDDR5 RAM works at a speed of 1750 MHz on this particular card. It features 1024 SPUs as well as 64 TAUs 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, in theory, should perform much faster than the Radeon R7 250 overall. (explain)

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

Texel Rate

The Radeon RX 560 should be quite a bit (about 213%) faster with regards to texture filtering than the Radeon R7 250. (explain)

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

Pixel Rate

The Radeon RX 560 is quite a bit (about 135%) better at FSAA than the Radeon R7 250, and will be able to handle higher screen resolutions without losing too much performance. (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 maximum amount of information (in units of megabytes per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 once 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, HDR and high 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 by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.