Radeon HD 5770 vs Radeon RX 480

Intro

Compare all of that to the Radeon RX 480, which uses a 14 nm design. AMD has set the core frequency at 1120 MHz. The GDDR5 memory is set to run at a speed of 2000 MHz on this card. It features 2304 SPUs along with 144 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5770		108 Watts
Radeon RX 480		150 Watts
	Difference: 42 Watts (39%)

Memory Bandwidth

The Radeon RX 480 should theoretically perform much faster than the Radeon HD 5770 overall. (explain)

Radeon RX 480		262144 MB/sec
Radeon HD 5770		76800 MB/sec
	Difference: 185344 (241%)

Texel Rate

The Radeon RX 480 will be much (more or less 374%) faster with regards to anisotropic filtering than the Radeon HD 5770. (explain)

Radeon RX 480		161280 Mtexels/sec
Radeon HD 5770		34000 Mtexels/sec
	Difference: 127280 (374%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 480 is superior to the Radeon HD 5770, and very much so. (explain)

Radeon RX 480		35840 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 22240 (164%)

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 largest amount of information (measured in MB per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. 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 number of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most 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 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 quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.