Radeon RX 470 4GB vs Radeon RX Vega 56

Intro

Compare all of that to the Radeon RX Vega 56, which features a clock speed of 1156 MHz and a HBM2 memory speed of 1600 MHz. It also uses a 2048-bit bus, and uses a 14 nm design. It features 3584 SPUs, 224 Texture Address Units, and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 4GB		120 Watts
Radeon RX Vega 56		210 Watts
	Difference: 90 Watts (75%)

Memory Bandwidth

Theoretically speaking, the Radeon RX Vega 56 should be much faster than the Radeon RX 470 4GB in general. (explain)

Radeon RX Vega 56		419430 MB/sec
Radeon RX 470 4GB		211200 MB/sec
	Difference: 208230 (99%)

Texel Rate

The Radeon RX Vega 56 will be quite a bit (about 118%) faster with regards to AF than the Radeon RX 470 4GB. (explain)

Radeon RX Vega 56		258944 Mtexels/sec
Radeon RX 470 4GB		118528 Mtexels/sec
	Difference: 140416 (118%)

Pixel Rate

The Radeon RX Vega 56 will be quite a bit (more or less 150%) better at full screen anti-aliasing than the Radeon RX 470 4GB, and also should be able to handle higher resolutions more effectively. (explain)

Radeon RX Vega 56		73984 Mpixels/sec
Radeon RX 470 4GB		29632 Mpixels/sec
	Difference: 44352 (150%)

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 data (measured in megabytes per second) that can be transported across the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's 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 amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the card's 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 fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.