GeForce GTX 660 vs Radeon RX 5500 XT

Intro

Compare that to the Radeon RX 5500 XT, which has a clock speed of 1717 MHz and a GDDR6 memory speed of 1750 MHz. It also uses a 128-bit memory bus, and uses a 7 nm design. It features 1408 SPUs, 88 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500 XT		130 Watts
GeForce GTX 660		140 Watts
	Difference: 10 Watts (8%)

Memory Bandwidth

In theory, the Radeon RX 5500 XT should perform a lot faster than the GeForce GTX 660 overall. (explain)

Radeon RX 5500 XT		229376 MB/sec
GeForce GTX 660		144192 MB/sec
	Difference: 85184 (59%)

Texel Rate

The Radeon RX 5500 XT should be much (more or less 93%) faster with regards to anisotropic filtering than the GeForce GTX 660. (explain)

Radeon RX 5500 XT		151096 Mtexels/sec
GeForce GTX 660		78400 Mtexels/sec
	Difference: 72696 (93%)

Pixel Rate

The Radeon RX 5500 XT should be a lot (more or less 134%) better at full screen anti-aliasing than the GeForce GTX 660, and will be capable of handling higher screen resolutions more effectively. (explain)

Radeon RX 5500 XT		54944 Mpixels/sec
GeForce GTX 660		23520 Mpixels/sec
	Difference: 31424 (134%)

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 largest amount of information (in units of MB per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video 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 number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.