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GeForce GTX 780 Ti vs Radeon RX 6650 XT

Intro

The GeForce GTX 780 Ti comes with a GPU clock speed of 875 MHz, and the 3072 MB of GDDR5 RAM is set to run at 1750 MHz through a 384-bit bus. It also features 2880 Stream Processors, 240 TAUs, and 48 ROPs.

Compare those specs to the Radeon RX 6650 XT, which has core speeds of 2055 MHz on the GPU, and 2190 MHz on the 8192 MB of GDDR6 memory. It features 2048 SPUs along with 128 TAUs and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6650 XT 176 Watts
GeForce GTX 780 Ti 250 Watts
Difference: 74 Watts (42%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 780 Ti is 17% quicker than the Radeon RX 6650 XT overall, due to its greater data rate. (explain)

GeForce GTX 780 Ti 336000 MB/sec
Radeon RX 6650 XT 287072 MB/sec
Difference: 48928 (17%)

Texel Rate

The Radeon RX 6650 XT will be much (more or less 25%) faster with regards to AF than the GeForce GTX 780 Ti. (explain)

Radeon RX 6650 XT 263040 Mtexels/sec
GeForce GTX 780 Ti 210000 Mtexels/sec
Difference: 53040 (25%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 6650 XT is a better choice, by far. (explain)

Radeon RX 6650 XT 131520 Mpixels/sec
GeForce GTX 780 Ti 42000 Mpixels/sec
Difference: 89520 (213%)

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 6650 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 6650 XT
Manufacturer nVidia AMD
Year November 2013 May 2022
Code Name GK110 Navi 23
Memory 3072 MB 8192 MB
Core Speed 875 MHz 2055 MHz
Memory Speed 7000 MHz 4380 GB/s
Power (Max TDP) 250 watts 176 watts
Bandwidth 336000 MB/sec 287072 MB/sec
Texel Rate 210000 Mtexels/sec 263040 Mtexels/sec
Pixel Rate 42000 Mpixels/sec 131520 Mpixels/sec
Unified Shaders 2880 2048
Texture Mapping Units 240 128
Render Output Units 48 64
Bus Type GDDR5 GDDR6
Bus Width 384-bit 128-bit
Fab Process 28 nm 7 nm
Transistors 7080 million 11060 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: Bandwidth is the max amount of information (measured in MB per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, 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 that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number 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 lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 780 Ti

Amazon.com

Check prices at:

Radeon RX 6650 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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