Compare any two graphics cards:
VS

Radeon R9 390X 8G vs Radeon RX 6750 XT

Intro

The Radeon R9 390X 8G comes with a GPU core clock speed of 1050 MHz, and the 8192 MB of GDDR5 memory runs at 1500 MHz through a 512-bit bus. It also features 2816 Stream Processors, 176 TAUs, and 64 ROPs.

Compare that to the Radeon RX 6750 XT, which comes with a core clock speed of 2150 MHz and a GDDR6 memory speed of 2250 MHz. It also features a 192-bit bus, and uses a 7 nm design. It is comprised of 2560 SPUs, 160 Texture Address Units, 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

In theory, the Radeon RX 6750 XT should perform a small bit faster than the Radeon R9 390X 8G in general. (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 (about 86%) faster with regards to AF 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 much (approximately 105%) better at FSAA than the Radeon R9 390X 8G, and should be capable of handling higher resolutions more effectively. (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

Display Prices

Hide Prices

Radeon R9 390X 8G

Amazon.com

Check prices at:

Radeon RX 6750 XT

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

Display Specifications

Hide Specifications

Model Radeon R9 390X 8G Radeon RX 6750 XT
Manufacturer AMD AMD
Year June 2015 March 2022
Code Name Grenada XT Navi 22
Memory 8192 MB 12288 MB
Core Speed 1050 MHz 2150 MHz
Memory Speed 6000 MHz 4500 GB/s
Power (Max TDP) 275 watts 250 watts
Bandwidth 384000 MB/sec 442368 MB/sec
Texel Rate 184800 Mtexels/sec 344000 Mtexels/sec
Pixel Rate 67200 Mpixels/sec 137600 Mpixels/sec
Unified Shaders 2816 2560
Texture Mapping Units 176 160
Render Output Units 64 64
Bus Type GDDR5 GDDR6
Bus Width 512-bit 192-bit
Fab Process 28 nm 7 nm
Transistors 6200 million 17200 million
Bus PCIe 3.0 ×16 PCIe 4.0 x16
DirectX Version DirectX 12.0 DirectX 12
OpenGL Version OpenGL 4.5 OpenGL 4.6

Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total texture units of the card by the core 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 processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

Radeon R9 390X 8G

Amazon.com

Check prices at:

Radeon RX 6750 XT

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Comments

Be the first to leave a comment!

Your email address will not be published. Required fields are marked *


*

WordPress Anti Spam by WP-SpamShield