Radeon R7 250 vs Radeon RX 560

Intro

Compare all of that to the Radeon RX 560, which features GPU clock speed of 1175 MHz, and 4096 MB of GDDR5 RAM set to run at 1750 MHz through a 128-bit bus. It also features 1024 Stream Processors, 64 TAUs, and 16 Raster Operation Units.

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 in theory perform a lot 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 a lot (more or less 213%) more effective 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

The Radeon RX 560 will be a lot (approximately 135%) better at AA than the Radeon R7 250, and also should be able to handle higher resolutions while still performing well. (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 (counted in megabytes per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed 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 handling 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 the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core speed of the card. 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 is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.