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Radeon RX 6700 XT vs Radeon RX 7900 XTX

Intro

The Radeon RX 6700 XT comes with a core clock speed of 2321 MHz and a GDDR6 memory frequency of 2000 MHz. It also uses a 192-bit memory bus, and uses a 7 nm design. It is made up of 2560 SPUs, 160 Texture Address Units, and 64 Raster Operation Units.

Compare all of that to the Radeon RX 7900 XTX, which makes use of a 5 nm design. AMD has set the core speed at 1855 MHz. The GDDR6 RAM works at a speed of 2500 MHz on this specific card. It features 6144 SPUs along with 384 TAUs and 192 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6700 XT 230 Watts
Radeon RX 7900 XTX 355 Watts
Difference: 125 Watts (54%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 7900 XTX is 150% quicker than the Radeon RX 6700 XT in general, because of its higher bandwidth. (explain)

Radeon RX 7900 XTX 983040 MB/sec
Radeon RX 6700 XT 393216 MB/sec
Difference: 589824 (150%)

Texel Rate

The Radeon RX 7900 XTX is much (more or less 92%) more effective at AF than the Radeon RX 6700 XT. (explain)

Radeon RX 7900 XTX 712320 Mtexels/sec
Radeon RX 6700 XT 371360 Mtexels/sec
Difference: 340960 (92%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 7900 XTX is superior to the Radeon RX 6700 XT, by a large margin. (explain)

Radeon RX 7900 XTX 356160 Mpixels/sec
Radeon RX 6700 XT 148544 Mpixels/sec
Difference: 207616 (140%)

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

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Radeon RX 6700 XT

Amazon.com

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Radeon RX 7900 XTX

Amazon.com

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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

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Model Radeon RX 6700 XT Radeon RX 7900 XTX
Manufacturer AMD AMD
Year March 2021 December 2022
Code Name Navi 22 Navi 31 XTX
Memory (Unknown) MB 24576 MB
Core Speed 2321 MHz 1855 MHz
Memory Speed 2000 GB/s 2500 GB/s
Power (Max TDP) 230 watts 355 watts
Bandwidth 393216 MB/sec 983040 MB/sec
Texel Rate 371360 Mtexels/sec 712320 Mtexels/sec
Pixel Rate 148544 Mpixels/sec 356160 Mpixels/sec
Unified Shaders 2560 6144
Texture Mapping Units 160 384
Render Output Units 64 192
Bus Type GDDR6 GDDR6
Bus Width 192-bit 384-bit
Fab Process 7 nm 5 nm
Transistors 17200 million 57700 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: Bandwidth is the max amount of data (counted in megabytes per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 again. If it uses 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 number of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. 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 lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon RX 6700 XT

Amazon.com

Check prices at:

Radeon RX 7900 XTX

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.

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