Radeon RX 6800 vs Radeon RX Vega 56

Intro

Compare those specs to the Radeon RX Vega 56, which comes with core speeds of 1156 MHz on the GPU, and 1600 MHz on the 8192 MB of HBM2 RAM. It features 3584 SPUs as well as 224 TAUs and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX Vega 56		210 Watts
Radeon RX 6800		250 Watts
	Difference: 40 Watts (19%)

Memory Bandwidth

The Radeon RX 6800 should theoretically be quite a bit faster than the Radeon RX Vega 56 in general. (explain)

Radeon RX 6800		524288 MB/sec
Radeon RX Vega 56		419430 MB/sec
	Difference: 104858 (25%)

Texel Rate

The Radeon RX 6800 is much (about 58%) more effective at AF than the Radeon RX Vega 56. (explain)

Radeon RX 6800		408000 Mtexels/sec
Radeon RX Vega 56		258944 Mtexels/sec
	Difference: 149056 (58%)

Pixel Rate

The Radeon RX 6800 should be quite a bit (about 121%) more effective at anti-aliasing than the Radeon RX Vega 56, and also able to handle higher resolutions without slowing down too much. (explain)

Radeon RX 6800		163200 Mpixels/sec
Radeon RX Vega 56		73984 Mpixels/sec
	Difference: 89216 (121%)

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 (measured in MB per second) that can be transferred past the external memory interface in a second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 amount of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, 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 could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. 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 reach the max fill rate.