Radeon RX Vega 56 vs Radeon RX Vega 64

Intro

Compare those specs to the Radeon RX Vega 64, which has a clock speed of 1247 MHz and a HBM2 memory frequency of 1890 MHz. It also features a 2048-bit memory bus, and uses a 14 nm design. It is comprised of 4096 SPUs, 256 TAUs, and 64 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon RX Vega 64		21986 points
Radeon RX Vega 56		21011 points
	Difference: 975 (5%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX Vega 56		210 Watts
Radeon RX Vega 64		295 Watts
	Difference: 85 Watts (40%)

Memory Bandwidth

In theory, the Radeon RX Vega 64 should perform just a bit faster than the Radeon RX Vega 56 in general. (explain)

Radeon RX Vega 64		495411 MB/sec
Radeon RX Vega 56		419430 MB/sec
	Difference: 75981 (18%)

Texel Rate

The Radeon RX Vega 64 will be much (more or less 23%) better at anisotropic filtering than the Radeon RX Vega 56. (explain)

Radeon RX Vega 64		319232 Mtexels/sec
Radeon RX Vega 56		258944 Mtexels/sec
	Difference: 60288 (23%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX Vega 64 is a better choice, not by a very large margin though. (explain)

Radeon RX Vega 64		79808 Mpixels/sec
Radeon RX Vega 56		73984 Mpixels/sec
	Difference: 5824 (8%)

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 max amount of information (measured in megabytes per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

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