Radeon RX 6750 XT vs Radeon RX Vega 56

Intro

Compare those specifications to the Radeon RX Vega 56, which has a clock frequency of 1156 MHz and a HBM2 memory speed of 1600 MHz. It also features a 2048-bit bus, and makes use of a 14 nm design. It is made up of 3584 SPUs, 224 TAUs, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX Vega 56		210 Watts
Radeon RX 6750 XT		250 Watts
	Difference: 40 Watts (19%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6750 XT should be 5% quicker than the Radeon RX Vega 56 overall, due to its higher data rate. (explain)

Radeon RX 6750 XT		442368 MB/sec
Radeon RX Vega 56		419430 MB/sec
	Difference: 22938 (5%)

Texel Rate

The Radeon RX 6750 XT will be a lot (more or less 33%) better at texture filtering than the Radeon RX Vega 56. (explain)

Radeon RX 6750 XT		344000 Mtexels/sec
Radeon RX Vega 56		258944 Mtexels/sec
	Difference: 85056 (33%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 6750 XT is the winner, by far. (explain)

Radeon RX 6750 XT		137600 Mpixels/sec
Radeon RX Vega 56		73984 Mpixels/sec
	Difference: 63616 (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 max amount of information (in units of MB per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called 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 ability to get to the maximum fill rate.