GeForce GTX 1070 Ti vs Radeon RX 6650 XT

Intro

Compare that to the Radeon RX 6650 XT, which makes use of a 7 nm design. AMD has clocked the core speed at 2055 MHz. The GDDR6 RAM works at a speed of 2190 MHz on this model. It features 2048 SPUs as well as 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 1070 Ti		180 Watts
	Difference: 4 Watts (2%)

Memory Bandwidth

In theory, the Radeon RX 6650 XT should be 10% faster than the GeForce GTX 1070 Ti in general, because of its higher data rate. (explain)

Radeon RX 6650 XT		287072 MB/sec
GeForce GTX 1070 Ti		262144 MB/sec
	Difference: 24928 (10%)

Texel Rate

The Radeon RX 6650 XT should be just a bit (approximately 8%) better at texture filtering than the GeForce GTX 1070 Ti. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
GeForce GTX 1070 Ti		244264 Mtexels/sec
	Difference: 18776 (8%)

Pixel Rate

The Radeon RX 6650 XT will be quite a bit (approximately 28%) better at full screen anti-aliasing than the GeForce GTX 1070 Ti, and also should be capable of handling higher screen resolutions while still performing well. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
GeForce GTX 1070 Ti		102848 Mpixels/sec
	Difference: 28672 (28%)

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

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in MB per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.