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GeForce GTX 780 Ti vs Radeon RX 6700 XT

Intro

The GeForce GTX 780 Ti has a clock speed of 875 MHz and a GDDR5 memory speed of 1750 MHz. It also uses a 384-bit memory bus, and makes use of a 28 nm design. It is made up of 2880 SPUs, 240 Texture Address Units, and 48 ROPs.

Compare all that to the Radeon RX 6700 XT, which uses a 7 nm design. AMD has clocked the core frequency at 2321 MHz. The GDDR6 memory is set to run at a speed of 2000 MHz on this particular card. It features 2560 SPUs as well as 160 Texture Address Units and 64 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6700 XT 230 Watts
GeForce GTX 780 Ti 250 Watts
Difference: 20 Watts (9%)

Memory Bandwidth

The Radeon RX 6700 XT, in theory, should perform a bit faster than the GeForce GTX 780 Ti overall. (explain)

Radeon RX 6700 XT 393216 MB/sec
GeForce GTX 780 Ti 336000 MB/sec
Difference: 57216 (17%)

Texel Rate

The Radeon RX 6700 XT will be a lot (about 77%) more effective at texture filtering than the GeForce GTX 780 Ti. (explain)

Radeon RX 6700 XT 371360 Mtexels/sec
GeForce GTX 780 Ti 210000 Mtexels/sec
Difference: 161360 (77%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 6700 XT is superior to the GeForce GTX 780 Ti, and very much so. (explain)

Radeon RX 6700 XT 148544 Mpixels/sec
GeForce GTX 780 Ti 42000 Mpixels/sec
Difference: 106544 (254%)

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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GeForce GTX 780 Ti

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

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Model GeForce GTX 780 Ti Radeon RX 6700 XT
Manufacturer nVidia AMD
Year November 2013 March 2021
Code Name GK110 Navi 22
Memory 3072 MB (Unknown) MB
Core Speed 875 MHz 2321 MHz
Memory Speed 7000 MHz 4000 GB/s
Power (Max TDP) 250 watts 230 watts
Bandwidth 336000 MB/sec 393216 MB/sec
Texel Rate 210000 Mtexels/sec 371360 Mtexels/sec
Pixel Rate 42000 Mpixels/sec 148544 Mpixels/sec
Unified Shaders 2880 2560
Texture Mapping Units 240 160
Render Output Units 48 64
Bus Type GDDR5 GDDR6
Bus Width 384-bit 192-bit
Fab Process 28 nm 7 nm
Transistors 7080 million 17200 million
Bus PCIe 3.0 x16 PCIe 4.0 x16
DirectX Version DirectX 11.0 DirectX 12
OpenGL Version OpenGL 4.4 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of MB per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GTX 780 Ti

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.

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