Radeon R9 390 8G vs Radeon RX Vega 56

Intro

Compare all that to the Radeon RX Vega 56, which comes with a clock frequency of 1156 MHz and a HBM2 memory frequency of 1600 MHz. It also uses a 2048-bit bus, and uses a 14 nm design. It features 3584 SPUs, 224 Texture Address Units, 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 390 8G		12733 points
	Difference: 8278 (65%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

In theory, the Radeon RX Vega 56 should be 9% quicker than the Radeon R9 390 8G overall, because of its higher bandwidth. (explain)

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

Texel Rate

The Radeon RX Vega 56 should be much (more or less 62%) better at texture filtering than the Radeon R9 390 8G. (explain)

Radeon RX Vega 56		258944 Mtexels/sec
Radeon R9 390 8G		160000 Mtexels/sec
	Difference: 98944 (62%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX Vega 56 is superior to the Radeon R9 390 8G, but only just. (explain)

Radeon RX Vega 56		73984 Mpixels/sec
Radeon R9 390 8G		64000 Mpixels/sec
	Difference: 9984 (16%)

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 maximum amount of data (in units of MB per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's 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 texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the video 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 most pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number 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 also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.