Radeon RX Vega 56 vs Radeon RX Vega 64

Intro

Compare those specifications to the Radeon RX Vega 64, which comes with clock speeds of 1247 MHz on the GPU, and 1890 MHz on the 8192 MB of HBM2 memory. It features 4096 SPUs along with 256 Texture Address Units and 64 Rasterization Operator Units.

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 is 18% faster than the Radeon RX Vega 56 overall, because of its higher data rate. (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 is a lot (about 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

The Radeon RX Vega 64 will be a small bit (approximately 8%) more effective at full screen anti-aliasing than the Radeon RX Vega 56, and will be able to handle higher resolutions better. (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: Memory bandwidth is the largest amount of data (in units of MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.