Radeon HD 7750 vs Radeon RX 560

Intro

Compare those specifications to the Radeon RX 560, which has a GPU core clock speed of 1175 MHz, and 4096 MB of GDDR5 memory running at 1750 MHz through a 128-bit bus. It also is made up of 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 HD 7750		55 Watts
Radeon RX 560		80 Watts
	Difference: 25 Watts (45%)

Memory Bandwidth

Performance-wise, the Radeon RX 560 should in theory be a lot superior to the Radeon HD 7750 overall. (explain)

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

Texel Rate

The Radeon RX 560 should be quite a bit (about 194%) faster with regards to AF than the Radeon HD 7750. (explain)

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

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 560 is a better choice, by a large margin. (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: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the 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 chip can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.