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

Compare any two graphics cards:
VS

Radeon RX 6900 XT vs Radeon RX Vega 64

Intro

The Radeon RX 6900 XT has a clock frequency of 1825 MHz and a GDDR6 memory speed of 2000 MHz. It also features a 256-bit memory bus, and makes use of a 7 nm design. It features 5120 SPUs, 320 TAUs, and 128 Raster Operation Units.

Compare those specs to the Radeon RX Vega 64, which has a core clock frequency of 1247 MHz and a HBM2 memory speed of 1890 MHz. It also uses a 2048-bit memory bus, and makes use of a 14 nm design. It is made up of 4096 SPUs, 256 Texture Address Units, and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX Vega 64 295 Watts
Radeon RX 6900 XT 300 Watts
Difference: 5 Watts (2%)

Memory Bandwidth

The Radeon RX 6900 XT, in theory, should be a bit faster than the Radeon RX Vega 64 overall. (explain)

Radeon RX 6900 XT 524288 MB/sec
Radeon RX Vega 64 495411 MB/sec
Difference: 28877 (6%)

Texel Rate

The Radeon RX 6900 XT will be a lot (about 83%) better at AF than the Radeon RX Vega 64. (explain)

Radeon RX 6900 XT 584000 Mtexels/sec
Radeon RX Vega 64 319232 Mtexels/sec
Difference: 264768 (83%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 6900 XT is a better choice, and very much so. (explain)

Radeon RX 6900 XT 233600 Mpixels/sec
Radeon RX Vega 64 79808 Mpixels/sec
Difference: 153792 (193%)

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 RX 6900 XT

Amazon.com

Check prices at:

Radeon RX Vega 64

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 RX 6900 XT Radeon RX Vega 64
Manufacturer AMD AMD
Year 2020 August 2017
Code Name Navi 21 Vega 10 XT
Memory 16384 MB 8192 MB
Core Speed 1825 MHz 1247 MHz
Memory Speed 2000 GB/s 1890 MHz
Power (Max TDP) 300 watts 295 watts
Bandwidth 524288 MB/sec 495411 MB/sec
Texel Rate 584000 Mtexels/sec 319232 Mtexels/sec
Pixel Rate 233600 Mpixels/sec 79808 Mpixels/sec
Unified Shaders 5120 4096
Texture Mapping Units 320 256
Render Output Units 128 64
Bus Type GDDR6 HBM2
Bus Width 256-bit 2048-bit
Fab Process 7 nm 14 nm
Transistors 26800 million 12500 million
Bus PCIe 4.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 12.0
OpenGL Version OpenGL 4.6 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the bus width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

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

Display Prices

Hide Prices

Radeon RX 6900 XT

Amazon.com

Check prices at:

Radeon RX Vega 64

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