I get commissions for purchases made through links on this page. (more info)

Compare any two graphics cards:
VS

Radeon R9 390 8G vs Radeon RX 6700 XT

Intro

The Radeon R9 390 8G uses a 28 nm design. AMD has clocked the core frequency at 1000 MHz. The GDDR5 RAM runs at a frequency of 1500 MHz on this specific card. It features 2560 SPUs as well as 160 Texture Address Units and 64 Rasterization Operator Units.

Compare those specs to the Radeon RX 6700 XT, which has core speeds of 2321 MHz on the GPU, and 2000 MHz on the (Unknown) MB of GDDR6 memory. 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 6700 XT 230 Watts
Radeon R9 390 8G 275 Watts
Difference: 45 Watts (20%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6700 XT should be 2% faster than the Radeon R9 390 8G overall, due to its greater data rate. (explain)

Radeon RX 6700 XT 393216 MB/sec
Radeon R9 390 8G 384000 MB/sec
Difference: 9216 (2%)

Texel Rate

The Radeon RX 6700 XT should be much (more or less 132%) faster with regards to AF than the Radeon R9 390 8G. (explain)

Radeon RX 6700 XT 371360 Mtexels/sec
Radeon R9 390 8G 160000 Mtexels/sec
Difference: 211360 (132%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 6700 XT is the winner, by a large margin. (explain)

Radeon RX 6700 XT 148544 Mpixels/sec
Radeon R9 390 8G 64000 Mpixels/sec
Difference: 84544 (132%)

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 390 8G

Amazon.com

Check prices at:

Radeon RX 6700 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 390 8G Radeon RX 6700 XT
Manufacturer AMD AMD
Year June 2015 March 2021
Code Name Grenada PRO Navi 22
Memory 8192 MB (Unknown) MB
Core Speed 1000 MHz 2321 MHz
Memory Speed 6000 MHz 4000 GB/s
Power (Max TDP) 275 watts 230 watts
Bandwidth 384000 MB/sec 393216 MB/sec
Texel Rate 160000 Mtexels/sec 371360 Mtexels/sec
Pixel Rate 64000 Mpixels/sec 148544 Mpixels/sec
Unified Shaders 2560 2560
Texture Mapping Units 160 160
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 max amount of information (in units of MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's 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 amount of texture map elements (texels) that can be processed per second. This number is calculated 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially 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 390 8G

Amazon.com

Check prices at:

Radeon RX 6700 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