Radeon RX 6700 XT vs Radeon RX Vega 64

Intro

Compare all that to the Radeon RX Vega 64, which makes use of a 14 nm design. AMD has set the core speed at 1247 MHz. The HBM2 memory is set to run at a speed of 1890 MHz on this card. It features 4096 SPUs along with 256 TAUs and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6700 XT		230 Watts
Radeon RX Vega 64		295 Watts
	Difference: 65 Watts (28%)

Memory Bandwidth

The Radeon RX Vega 64 should theoretically be much faster than the Radeon RX 6700 XT overall. (explain)

Radeon RX Vega 64		495411 MB/sec
Radeon RX 6700 XT		393216 MB/sec
	Difference: 102195 (26%)

Texel Rate

The Radeon RX 6700 XT will be a little bit (approximately 16%) better at AF than the Radeon RX Vega 64. (explain)

Radeon RX 6700 XT		371360 Mtexels/sec
Radeon RX Vega 64		319232 Mtexels/sec
	Difference: 52128 (16%)

Pixel Rate

The Radeon RX 6700 XT is quite a bit (approximately 86%) faster with regards to full screen anti-aliasing than the Radeon RX Vega 64, and also capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 6700 XT		148544 Mpixels/sec
Radeon RX Vega 64		79808 Mpixels/sec
	Difference: 68736 (86%)

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 maximum amount of information (counted in MB per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.