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

Compare any two graphics cards:
VS

GeForce RTX 3090 vs Radeon RX 6800

Intro

The GeForce RTX 3090 has a clock frequency of 1395 MHz and a GDDR6X memory frequency of 1219 MHz. It also features a 384-bit bus, and makes use of a 8 nm design. It features 10496 SPUs, 328 Texture Address Units, and 112 ROPs.

Compare those specs to the Radeon RX 6800, which comes with a clock speed of 1700 MHz and a GDDR6 memory speed of 2000 MHz. It also features a 256-bit memory bus, and uses a 7 nm design. It is comprised of 3840 SPUs, 240 TAUs, and 96 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6800 250 Watts
GeForce RTX 3090 350 Watts
Difference: 100 Watts (40%)

Memory Bandwidth

The GeForce RTX 3090 should in theory be quite a bit faster than the Radeon RX 6800 in general. (explain)

GeForce RTX 3090 958668 MB/sec
Radeon RX 6800 524288 MB/sec
Difference: 434380 (83%)

Texel Rate

The GeForce RTX 3090 is a small bit (about 12%) better at AF than the Radeon RX 6800. (explain)

GeForce RTX 3090 457560 Mtexels/sec
Radeon RX 6800 408000 Mtexels/sec
Difference: 49560 (12%)

Pixel Rate

The Radeon RX 6800 is a little bit (more or less 4%) faster with regards to anti-aliasing than the GeForce RTX 3090, and able to handle higher resolutions more effectively. (explain)

Radeon RX 6800 163200 Mpixels/sec
GeForce RTX 3090 156240 Mpixels/sec
Difference: 6960 (4%)

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

GeForce RTX 3090

Amazon.com

Check prices at:

Radeon RX 6800

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 GeForce RTX 3090 Radeon RX 6800
Manufacturer nVidia AMD
Year September 2020 November 2020
Code Name GA102-300-A1 Navi 21
Memory 24576 MB 16384 MB
Core Speed 1395 MHz 1700 MHz
Memory Speed 1219 GB/s 2000 GB/s
Power (Max TDP) 350 watts 250 watts
Bandwidth 958668 MB/sec 524288 MB/sec
Texel Rate 457560 Mtexels/sec 408000 Mtexels/sec
Pixel Rate 156240 Mpixels/sec 163200 Mpixels/sec
Unified Shaders 10496 3840
Texture Mapping Units 328 240
Render Output Units 112 96
Bus Type GDDR6X GDDR6
Bus Width 384-bit 256-bit
Fab Process 8 nm 7 nm
Transistors 28300 million 26800 million
Bus PCIe 4.0 x16 PCIe 4.0 x16
DirectX Version DirectX 12 DirectX 12
OpenGL Version OpenGL 4.6 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. 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 potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce RTX 3090

Amazon.com

Check prices at:

Radeon RX 6800

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