Radeon HD 7770 vs Radeon RX 560

Intro

Compare those specifications to the Radeon RX 560, which features a core clock frequency of 1175 MHz and a GDDR5 memory frequency of 1750 MHz. It also makes use of a 128-bit bus, and makes use of a 14 nm design. It features 1024 SPUs, 64 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

In theory, the Radeon RX 560 should be quite a bit faster than the Radeon HD 7770 in general. (explain)

Radeon RX 560		114688 MB/sec
Radeon HD 7770		72000 MB/sec
	Difference: 42688 (59%)

Texel Rate

The Radeon RX 560 should be quite a bit (more or less 88%) better at texture filtering than the Radeon HD 7770. (explain)

Radeon RX 560		75200 Mtexels/sec
Radeon HD 7770		40000 Mtexels/sec
	Difference: 35200 (88%)

Pixel Rate

The Radeon RX 560 will be a little bit (about 18%) more effective at AA than the Radeon HD 7770, and will be able to handle higher screen resolutions more effectively. (explain)

Radeon RX 560		18800 Mpixels/sec
Radeon HD 7770		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 maximum amount of data (measured in megabytes per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the 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 number of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better 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 chip can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.