Radeon R9 390X 8G vs Radeon RX Vega 56

Intro

Compare all of that to the Radeon RX Vega 56, which comes with core clock 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

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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 56		21011 points
Radeon R9 390X 8G		13555 points
	Difference: 7456 (55%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX Vega 56		210 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 65 Watts (31%)

Memory Bandwidth

Theoretically, the Radeon RX Vega 56 should perform just a bit faster than the Radeon R9 390X 8G overall. (explain)

Radeon RX Vega 56		419430 MB/sec
Radeon R9 390X 8G		384000 MB/sec
	Difference: 35430 (9%)

Texel Rate

The Radeon RX Vega 56 will be a lot (more or less 40%) better at texture filtering than the Radeon R9 390X 8G. (explain)

Radeon RX Vega 56		258944 Mtexels/sec
Radeon R9 390X 8G		184800 Mtexels/sec
	Difference: 74144 (40%)

Pixel Rate

The Radeon RX Vega 56 is a bit (approximately 10%) better at anti-aliasing than the Radeon R9 390X 8G, and will be able to handle higher resolutions better. (explain)

Radeon RX Vega 56		73984 Mpixels/sec
Radeon R9 390X 8G		67200 Mpixels/sec
	Difference: 6784 (10%)

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 data (in units of megabytes per second) that can be transported 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 RAM, it must be multiplied by 2 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 high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the video 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 that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill 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 get to the max fill rate.