Radeon RX 590 vs Radeon RX Vega 64

Intro

Compare those specifications to the Radeon RX Vega 64, which features a core 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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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 590		175 Watts
Radeon RX Vega 64		295 Watts
	Difference: 120 Watts (69%)

Memory Bandwidth

Performance-wise, the Radeon RX Vega 64 should theoretically be much better than the Radeon RX 590 overall. (explain)

Radeon RX Vega 64		495411 MB/sec
Radeon RX 590		262144 MB/sec
	Difference: 233267 (89%)

Texel Rate

The Radeon RX Vega 64 should be a lot (about 51%) faster with regards to anisotropic filtering than the Radeon RX 590. (explain)

Radeon RX Vega 64		319232 Mtexels/sec
Radeon RX 590		211536 Mtexels/sec
	Difference: 107696 (51%)

Pixel Rate

The Radeon RX Vega 64 will be quite a bit (approximately 70%) better at anti-aliasing than the Radeon RX 590, and also will be capable of handling higher resolutions without slowing down too much. (explain)

Radeon RX Vega 64		79808 Mpixels/sec
Radeon RX 590		47008 Mpixels/sec
	Difference: 32800 (70%)

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 information (measured in MB per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 are processed in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the video 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 most pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.