Radeon R9 270X vs Radeon RX 6650 XT

Intro

Compare that to the Radeon RX 6650 XT, which has a clock speed of 2055 MHz and a GDDR6 memory frequency of 2190 MHz. It also features a 128-bit memory bus, and uses a 7 nm design. It features 2048 SPUs, 128 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6650 XT		176 Watts
Radeon R9 270X		180 Watts
	Difference: 4 Watts (2%)

Memory Bandwidth

The Radeon RX 6650 XT should theoretically perform much faster than the Radeon R9 270X in general. (explain)

Radeon RX 6650 XT		287072 MB/sec
Radeon R9 270X		179200 MB/sec
	Difference: 107872 (60%)

Texel Rate

The Radeon RX 6650 XT will be a lot (more or less 229%) better at AF than the Radeon R9 270X. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
Radeon R9 270X		80000 Mtexels/sec
	Difference: 183040 (229%)

Pixel Rate

The Radeon RX 6650 XT is a lot (approximately 311%) more effective at anti-aliasing than the Radeon R9 270X, and also will be capable of handling higher screen resolutions more effectively. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
Radeon R9 270X		32000 Mpixels/sec
	Difference: 99520 (311%)

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: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher 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 number of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.