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 runs at a frequency of 2250 MHz on this particular model. It features 2560 SPUs along with 160 TAUs and 64 ROPs.

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

The Radeon RX 6750 XT should in theory perform a bit faster than the Radeon R9 390X 8G overall. (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 is quite a bit (more or less 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

If running with high levels of AA is important to you, then the Radeon RX 6750 XT is the winner, and very much so. (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: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 can be processed in one second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.