Radeon RX Vega 56 vs Radeon RX Vega 64

Intro

Compare all that to the Radeon RX Vega 64, which comes with GPU core speed of 1247 MHz, and 8192 MB of HBM2 memory set to run at 1890 MHz through a 2048-bit bus. It also is made up 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

Theoretically speaking, the Radeon RX Vega 64 should be 18% faster than the Radeon RX Vega 56 overall, due to its higher bandwidth. (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 should be much (approximately 23%) more effective at texture 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 a high screen resolution is important to you, then the Radeon RX Vega 64 is a better choice, though only just barely. (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 largest amount of information (counted in MB per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

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