Radeon HD 4890 1GB vs Radeon RX 560

Intro

Compare all of that to the Radeon RX 560, which features core speeds of 1175 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 RAM. It features 1024 SPUs along with 64 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560		80 Watts
Radeon HD 4890 1GB		190 Watts
	Difference: 110 Watts (138%)

Memory Bandwidth

The Radeon HD 4890 1GB should theoretically be a small bit faster than the Radeon RX 560 in general. (explain)

Radeon HD 4890 1GB		124800 MB/sec
Radeon RX 560		114688 MB/sec
	Difference: 10112 (9%)

Texel Rate

The Radeon RX 560 should be a lot (more or less 88%) more effective at AF than the Radeon HD 4890 1GB. (explain)

Radeon RX 560		75200 Mtexels/sec
Radeon HD 4890 1GB		40000 Mtexels/sec
	Difference: 35200 (88%)

Pixel Rate

The Radeon RX 560 is a little bit (about 18%) faster with regards to FSAA than the Radeon HD 4890 1GB, and also should be capable of handling higher resolutions more effectively. (explain)

Radeon RX 560		18800 Mpixels/sec
Radeon HD 4890 1GB		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 information (counted in megabytes per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, 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 figure is calculated by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, 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 most pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.