Radeon R9 280X vs Radeon RX 6650 XT

Intro

Compare those specs to the Radeon RX 6650 XT, which comes with a core clock frequency of 2055 MHz and a GDDR6 memory speed of 2190 MHz. It also makes use of a 128-bit memory bus, and uses a 7 nm design. It features 2048 SPUs, 128 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6650 XT		176 Watts
Radeon R9 280X		250 Watts
	Difference: 74 Watts (42%)

Memory Bandwidth

As far as performance goes, the Radeon R9 280X should theoretically be just a bit better than the Radeon RX 6650 XT in general. (explain)

Radeon R9 280X		288000 MB/sec
Radeon RX 6650 XT		287072 MB/sec
	Difference: 928 (0%)

Texel Rate

The Radeon RX 6650 XT is a lot (more or less 142%) faster with regards to anisotropic filtering than the Radeon R9 280X. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
Radeon R9 280X		108800 Mtexels/sec
	Difference: 154240 (142%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 6650 XT is superior to the Radeon R9 280X, and very much so. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
Radeon R9 280X		27200 Mpixels/sec
	Difference: 104320 (384%)

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 maximum amount of information (counted in MB per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 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 AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the 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 card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.