Radeon R9 390X 8G vs Radeon RX 6750 XT

Intro

Compare those specs to the Radeon RX 6750 XT, which uses a 7 nm design. AMD has set the core speed at 2150 MHz. The GDDR6 memory is set to run at a frequency of 2250 MHz on this particular card. It features 2560 SPUs along with 160 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6750 XT		250 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 25 Watts (10%)

Memory Bandwidth

In theory, the Radeon RX 6750 XT is 15% quicker than the Radeon R9 390X 8G in general, because of its greater data rate. (explain)

Radeon RX 6750 XT		442368 MB/sec
Radeon R9 390X 8G		384000 MB/sec
	Difference: 58368 (15%)

Texel Rate

The Radeon RX 6750 XT will be quite a bit (about 86%) faster with regards to texture filtering than the Radeon R9 390X 8G. (explain)

Radeon RX 6750 XT		344000 Mtexels/sec
Radeon R9 390X 8G		184800 Mtexels/sec
	Difference: 159200 (86%)

Pixel Rate

The Radeon RX 6750 XT should be a lot (more or less 105%) more effective at FSAA than the Radeon R9 390X 8G, and will be capable of handling higher screen resolutions better. (explain)

Radeon RX 6750 XT		137600 Mpixels/sec
Radeon R9 390X 8G		67200 Mpixels/sec
	Difference: 70400 (105%)

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 (in units of megabytes per second) that can be transferred past the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 amount of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes 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, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.