Radeon HD 4770 vs Radeon RX 560

Intro

Compare that to the Radeon RX 560, which makes use of a 14 nm design. AMD has clocked the core frequency at 1175 MHz. The GDDR5 RAM is set to run at a frequency of 1750 MHz on this particular card. It features 1024 SPUs along with 64 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

The Radeon RX 560 should theoretically be much faster than the Radeon HD 4770 overall. (explain)

Radeon RX 560		114688 MB/sec
Radeon HD 4770		51200 MB/sec
	Difference: 63488 (124%)

Texel Rate

The Radeon RX 560 should be much (more or less 213%) better at texture filtering than the Radeon HD 4770. (explain)

Radeon RX 560		75200 Mtexels/sec
Radeon HD 4770		24000 Mtexels/sec
	Difference: 51200 (213%)

Pixel Rate

The Radeon RX 560 is a lot (more or less 57%) faster with regards to FSAA than the Radeon HD 4770, and will be able to handle higher resolutions without slowing down too much. (explain)

Radeon RX 560		18800 Mpixels/sec
Radeon HD 4770		12000 Mpixels/sec
	Difference: 6800 (57%)

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 transported over the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 per second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record 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 clock 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 output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.