Radeon RX 5700 XT vs Radeon RX Vega 64

Intro

Compare those specifications to the Radeon RX Vega 64, which uses a 14 nm design. AMD has clocked the core speed at 1247 MHz. The HBM2 memory runs at a speed of 1890 MHz on this particular card. It features 4096 SPUs along with 256 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5700 XT		225 Watts
Radeon RX Vega 64		295 Watts
	Difference: 70 Watts (31%)

Memory Bandwidth

The Radeon RX Vega 64, in theory, should perform a bit faster than the Radeon RX 5700 XT overall. (explain)

Radeon RX Vega 64		495411 MB/sec
Radeon RX 5700 XT		458752 MB/sec
	Difference: 36659 (8%)

Texel Rate

The Radeon RX Vega 64 should be much (about 24%) more effective at texture filtering than the Radeon RX 5700 XT. (explain)

Radeon RX Vega 64		319232 Mtexels/sec
Radeon RX 5700 XT		256800 Mtexels/sec
	Difference: 62432 (24%)

Pixel Rate

The Radeon RX 5700 XT should be quite a bit (approximately 29%) better at full screen anti-aliasing than the Radeon RX Vega 64, and also will be capable of handling higher screen resolutions better. (explain)

Radeon RX 5700 XT		102720 Mpixels/sec
Radeon RX Vega 64		79808 Mpixels/sec
	Difference: 22912 (29%)

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 (counted in megabytes per second) that can be moved past the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.