Radeon R9 290X vs Radeon RX 6600

Intro

Compare those specs to the Radeon RX 6600, which comes with GPU core speed of 1626 MHz, and 8192 MB of GDDR6 memory set to run at 1750 MHz through a 128-bit bus. It also features 1792 Stream Processors, 112 TAUs, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600		132 Watts
Radeon R9 290X		300 Watts
	Difference: 168 Watts (127%)

Memory Bandwidth

Performance-wise, the Radeon R9 290X should in theory be quite a bit better than the Radeon RX 6600 in general. (explain)

Radeon R9 290X		320000 MB/sec
Radeon RX 6600		229376 MB/sec
	Difference: 90624 (40%)

Texel Rate

The Radeon RX 6600 is quite a bit (approximately 29%) faster with regards to AF than the Radeon R9 290X. (explain)

Radeon RX 6600		182112 Mtexels/sec
Radeon R9 290X		140800 Mtexels/sec
	Difference: 41312 (29%)

Pixel Rate

The Radeon RX 6600 will be quite a bit (more or less 103%) more effective at anti-aliasing than the Radeon R9 290X, and also should be able to handle higher resolutions while still performing well. (explain)

Radeon RX 6600		104064 Mpixels/sec
Radeon R9 290X		51200 Mpixels/sec
	Difference: 52864 (103%)

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 largest amount of information (measured in megabytes per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, it should 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 anti-aliasing, 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 number of texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to 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.