Radeon R7 250X vs Radeon RX 560

Intro

Compare all of that to the Radeon RX 560, which makes use of a 14 nm design. AMD has set the core speed at 1175 MHz. The GDDR5 memory is set to run at a speed of 1750 MHz on this model. It features 1024 SPUs as well as 64 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560		80 Watts
Radeon R7 250X		95 Watts
	Difference: 15 Watts (19%)

Memory Bandwidth

The Radeon RX 560 should in theory perform a lot faster than the Radeon R7 250X overall. (explain)

Radeon RX 560		114688 MB/sec
Radeon R7 250X		72000 MB/sec
	Difference: 42688 (59%)

Texel Rate

The Radeon RX 560 is much (approximately 88%) faster with regards to texture filtering than the Radeon R7 250X. (explain)

Radeon RX 560		75200 Mtexels/sec
Radeon R7 250X		40000 Mtexels/sec
	Difference: 35200 (88%)

Pixel Rate

The Radeon RX 560 will be a bit (approximately 18%) faster with regards to FSAA than the Radeon R7 250X, and will be capable of handling higher resolutions while still performing well. (explain)

Radeon RX 560		18800 Mpixels/sec
Radeon R7 250X		16000 Mpixels/sec
	Difference: 2800 (18%)

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 data (in units of MB per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.