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Radeon RX 6750 XT vs Radeon RX 7900 XT

Intro

The Radeon RX 6750 XT has clock speeds of 2150 MHz on the GPU, and 2250 MHz on the 12288 MB of GDDR6 memory. It features 2560 SPUs along with 160 TAUs and 64 Rasterization Operator Units.

Compare all of that to the Radeon RX 7900 XT, which features a core clock speed of 1500 MHz and a GDDR6 memory speed of 2500 MHz. It also features a 320-bit bus, and uses a 5 nm design. It features 5376 SPUs, 336 Texture Address Units, and 192 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6750 XT 250 Watts
Radeon RX 7900 XT 300 Watts
Difference: 50 Watts (20%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 7900 XT should perform a lot faster than the Radeon RX 6750 XT overall. (explain)

Radeon RX 7900 XT 819200 MB/sec
Radeon RX 6750 XT 442368 MB/sec
Difference: 376832 (85%)

Texel Rate

The Radeon RX 7900 XT is much (about 47%) faster with regards to texture filtering than the Radeon RX 6750 XT. (explain)

Radeon RX 7900 XT 504000 Mtexels/sec
Radeon RX 6750 XT 344000 Mtexels/sec
Difference: 160000 (47%)

Pixel Rate

The Radeon RX 7900 XT will be quite a bit (about 109%) better at AA than the Radeon RX 6750 XT, and also should be capable of handling higher screen resolutions while still performing well. (explain)

Radeon RX 7900 XT 288000 Mpixels/sec
Radeon RX 6750 XT 137600 Mpixels/sec
Difference: 150400 (109%)

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 6750 XT

Amazon.com

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Radeon RX 7900 XT

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 6750 XT Radeon RX 7900 XT
Manufacturer AMD AMD
Year March 2022 December 2022
Code Name Navi 22 Navi 31 XT
Memory 12288 MB 20480 MB
Core Speed 2150 MHz 1500 MHz
Memory Speed 2250 GB/s 2500 GB/s
Power (Max TDP) 250 watts 300 watts
Bandwidth 442368 MB/sec 819200 MB/sec
Texel Rate 344000 Mtexels/sec 504000 Mtexels/sec
Pixel Rate 137600 Mpixels/sec 288000 Mpixels/sec
Unified Shaders 2560 5376
Texture Mapping Units 160 336
Render Output Units 64 192
Bus Type GDDR6 GDDR6
Bus Width 192-bit 320-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 largest amount of data (measured in MB per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is worked out 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on 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 ability to get to the max fill rate.

Display Prices

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Radeon RX 6750 XT

Amazon.com

Check prices at:

Radeon RX 7900 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.

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