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Nvidia Titan Xp vs Radeon RX 6800 XT

Intro

The Nvidia Titan Xp makes use of a 16 nm design. nVidia has clocked the core speed at 1582 MHz. The GDDR5X memory works at a frequency of 1426 MHz on this particular model. It features 3840 SPUs as well as 240 Texture Address Units and 96 ROPs.

Compare those specs to the Radeon RX 6800 XT, which comes with clock speeds of 1825 MHz on the GPU, and 2000 MHz on the 16384 MB of GDDR6 RAM. It features 4608 SPUs along with 288 Texture Address Units and 128 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Nvidia Titan Xp		250 Watts
Radeon RX 6800 XT		300 Watts
	Difference: 50 Watts (20%)

Memory Bandwidth

Theoretically, the Nvidia Titan Xp should be a bit faster than the Radeon RX 6800 XT overall. (explain)

Nvidia Titan Xp		560845 MB/sec
Radeon RX 6800 XT		524288 MB/sec
	Difference: 36557 (7%)

Texel Rate

The Radeon RX 6800 XT should be quite a bit (approximately 38%) better at anisotropic filtering than the Nvidia Titan Xp. (explain)

Radeon RX 6800 XT		525600 Mtexels/sec
Nvidia Titan Xp		379680 Mtexels/sec
	Difference: 145920 (38%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 6800 XT is superior to the Nvidia Titan Xp, by far. (explain)

Radeon RX 6800 XT		233600 Mpixels/sec
Nvidia Titan Xp		151872 Mpixels/sec
	Difference: 81728 (54%)

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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Nvidia Titan Xp

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Radeon RX 6800 XT

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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	Nvidia Titan Xp	Radeon RX 6800 XT
Manufacturer	nVidia	AMD
Year	April 2017	November 2020
Code Name	GP102	Navi 21
Memory	12288 MB	16384 MB
Core Speed	1582 MHz	1825 MHz
Memory Speed	11408 MHz	4000 GB/s
Power (Max TDP)	250 watts	300 watts
Bandwidth	560845 MB/sec	524288 MB/sec
Texel Rate	379680 Mtexels/sec	525600 Mtexels/sec
Pixel Rate	151872 Mpixels/sec	233600 Mpixels/sec
Unified Shaders	3840	4608
Texture Mapping Units	240	288
Render Output Units	96	128
Bus Type	GDDR5X	GDDR6
Bus Width	384-bit	256-bit
Fab Process	16 nm	7 nm
Transistors	12000 million	26800 million
Bus	PCIe 3.0 x16	PCIe 4.0 x16
DirectX Version	DirectX 12.0	DirectX 12
OpenGL Version	OpenGL 4.5	OpenGL 4.6

Memory Bandwidth: Bandwidth is the max amount of data (measured in megabytes per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 amount of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

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