Radeon RX 6950 XT vs Radeon RX Vega 64

Intro

Compare those specifications to the Radeon RX Vega 64, which has GPU core speed of 1247 MHz, and 8192 MB of HBM2 memory running at 1890 MHz through a 2048-bit bus. It also is comprised of 4096 SPUs, 256 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX Vega 64		295 Watts
Radeon RX 6950 XT		335 Watts
	Difference: 40 Watts (14%)

Memory Bandwidth

As far as performance goes, the Radeon RX 6950 XT should in theory be just a bit better than the Radeon RX Vega 64 in general. (explain)

Radeon RX 6950 XT		589824 MB/sec
Radeon RX Vega 64		495411 MB/sec
	Difference: 94413 (19%)

Texel Rate

The Radeon RX 6950 XT is much (approximately 93%) better at anisotropic filtering than the Radeon RX Vega 64. (explain)

Radeon RX 6950 XT		616000 Mtexels/sec
Radeon RX Vega 64		319232 Mtexels/sec
	Difference: 296768 (93%)

Pixel Rate

The Radeon RX 6950 XT is quite a bit (more or less 209%) faster with regards to full screen anti-aliasing than the Radeon RX Vega 64, and will be capable of handling higher resolutions more effectively. (explain)

Radeon RX 6950 XT		246400 Mpixels/sec
Radeon RX Vega 64		79808 Mpixels/sec
	Difference: 166592 (209%)

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 (measured in MB per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster 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 amount of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs 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 fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.