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GeForce RTX 2080 SUPER vs Radeon RX Vega 56

Intro

The GeForce RTX 2080 SUPER uses a 12 nm design. nVidia has set the core speed at 1650 MHz. The GDDR6 memory is set to run at a frequency of 15500 MHz on this specific model. It features 3072 SPUs along with 192 TAUs and 64 Rasterization Operator Units.

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

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX Vega 56		210 Watts
GeForce RTX 2080 SUPER		250 Watts
	Difference: 40 Watts (19%)

Memory Bandwidth

In theory, the GeForce RTX 2080 SUPER should be 21% faster than the Radeon RX Vega 56 overall, because of its higher data rate. (explain)

GeForce RTX 2080 SUPER		507904 MB/sec
Radeon RX Vega 56		419430 MB/sec
	Difference: 88474 (21%)

Texel Rate

The GeForce RTX 2080 SUPER should be quite a bit (approximately 22%) better at AF than the Radeon RX Vega 56. (explain)

GeForce RTX 2080 SUPER		316800 Mtexels/sec
Radeon RX Vega 56		258944 Mtexels/sec
	Difference: 57856 (22%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce RTX 2080 SUPER is a better choice, and very much so. (explain)

GeForce RTX 2080 SUPER		105600 Mpixels/sec
Radeon RX Vega 56		73984 Mpixels/sec
	Difference: 31616 (43%)

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

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GeForce RTX 2080 SUPER

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Radeon RX Vega 56

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model	GeForce RTX 2080 SUPER	Radeon RX Vega 56
Manufacturer	nVidia	AMD
Year	July 2019	September 2017
Code Name	TU104-450-A1	Vega 10 XL
Memory	8192 MB	8192 MB
Core Speed	1650 MHz	1156 MHz
Memory Speed	15500 GB/s	1600 MHz
Power (Max TDP)	250 watts	210 watts
Bandwidth	507904 MB/sec	419430 MB/sec
Texel Rate	316800 Mtexels/sec	258944 Mtexels/sec
Pixel Rate	105600 Mpixels/sec	73984 Mpixels/sec
Unified Shaders	3072	3584
Texture Mapping Units	192	224
Render Output Units	64	64
Bus Type	GDDR6	HBM2
Bus Width	256-bit	2048-bit
Fab Process	12 nm	14 nm
Transistors	13600 million	12500 million
Bus	PCIe 3.0 x16	PCIe 3.0 x16
DirectX Version	DirectX 12	DirectX 12.0
OpenGL Version	OpenGL 4.6	OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured 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 the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

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