Radeon HD 5770 vs Radeon RX 460

Intro

Compare all of that to the Radeon RX 460, which features a core clock frequency of 1090 MHz and a GDDR5 memory speed of 1750 MHz. It also makes use of a 128-bit bus, and makes use of a 14 nm design. It is comprised of 896 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
Radeon HD 5770		108 Watts
	Difference: 33 Watts (44%)

Memory Bandwidth

The Radeon RX 460 should theoretically perform a lot faster than the Radeon HD 5770 in general. (explain)

Radeon RX 460		112000 MB/sec
Radeon HD 5770		76800 MB/sec
	Difference: 35200 (46%)

Texel Rate

The Radeon RX 460 should be quite a bit (about 80%) better at texture filtering than the Radeon HD 5770. (explain)

Radeon RX 460		61040 Mtexels/sec
Radeon HD 5770		34000 Mtexels/sec
	Difference: 27040 (80%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 460 is superior to the Radeon HD 5770, by a large margin. (explain)

Radeon RX 460		17440 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 3840 (28%)

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 max amount of data (counted in megabytes per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.