Radeon HD 7750 vs Radeon RX 560

Intro

Compare those specifications to the Radeon RX 560, which comes with a clock frequency of 1175 MHz and a GDDR5 memory speed of 1750 MHz. It also features a 128-bit bus, and makes use of a 14 nm design. It is comprised of 1024 SPUs, 64 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
Radeon RX 560		80 Watts
	Difference: 25 Watts (45%)

Memory Bandwidth

In theory, the Radeon RX 560 should be much faster than the Radeon HD 7750 in general. (explain)

Radeon RX 560		114688 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 42688 (59%)

Texel Rate

The Radeon RX 560 should be much (about 194%) more effective at anisotropic filtering than the Radeon HD 7750. (explain)

Radeon RX 560		75200 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 49600 (194%)

Pixel Rate

The Radeon RX 560 will be a lot (about 47%) faster with regards to AA than the Radeon HD 7750, and also capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon RX 560		18800 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 6000 (47%)

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 data (in units of megabytes per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR 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 figure is calculated by multiplying the total 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.