Radeon RX 6700 XT vs Radeon RX Vega 64

Intro

Compare those specs to the Radeon RX Vega 64, which has a core clock frequency of 1247 MHz and a HBM2 memory frequency of 1890 MHz. It also features a 2048-bit bus, and uses a 14 nm design. It is made up of 4096 SPUs, 256 TAUs, and 64 Raster Operation Units.

Display Graphs

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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

Theoretically speaking, the Radeon RX Vega 64 should perform 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 just a bit (about 16%) more effective 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 much (about 86%) faster with regards to anti-aliasing than the Radeon RX Vega 64, and able to handle higher resolutions more effectively. (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: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one 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 higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one 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. The figure is worked out by multiplying the number of Raster Operations Pipelines by the clock 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 fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.