Radeon RX 5700 vs Radeon RX Vega 64

Intro

Compare all that to the Radeon RX Vega 64, which uses a 14 nm design. AMD has set the core speed at 1247 MHz. The HBM2 memory is set to run at a frequency of 1890 MHz on this specific card. It features 4096 SPUs as well as 256 Texture Address Units and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5700		180 Watts
Radeon RX Vega 64		295 Watts
	Difference: 115 Watts (64%)

Memory Bandwidth

Theoretically speaking, the Radeon RX Vega 64 should be a small bit faster than the Radeon RX 5700 overall. (explain)

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

Texel Rate

The Radeon RX Vega 64 will be much (about 51%) more effective at AF than the Radeon RX 5700. (explain)

Radeon RX Vega 64		319232 Mtexels/sec
Radeon RX 5700		210960 Mtexels/sec
	Difference: 108272 (51%)

Pixel Rate

The Radeon RX 5700 will be a bit (about 17%) faster with regards to AA than the Radeon RX Vega 64, and should be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon RX 5700		93760 Mpixels/sec
Radeon RX Vega 64		79808 Mpixels/sec
	Difference: 13952 (17%)

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 max amount of data (in units of megabytes per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the card will be at handling 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 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 Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.