GeForce GTX 660 vs GeForce RTX 2080

Intro

Compare those specifications to the GeForce RTX 2080, which has core speeds of 1515 MHz on the GPU, and 1750 MHz on the 8192 MB of GDDR6 memory. It features 2944 SPUs along with 184 TAUs and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce RTX 2080		26155 points
GeForce GTX 660		5063 points
	Difference: 21092 (417%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660		140 Watts
GeForce RTX 2080		215 Watts
	Difference: 75 Watts (54%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 2080 will be 218% quicker than the GeForce GTX 660 overall, because of its greater bandwidth. (explain)

GeForce RTX 2080		458752 MB/sec
GeForce GTX 660		144192 MB/sec
	Difference: 314560 (218%)

Texel Rate

The GeForce RTX 2080 will be much (approximately 256%) better at AF than the GeForce GTX 660. (explain)

GeForce RTX 2080		278760 Mtexels/sec
GeForce GTX 660		78400 Mtexels/sec
	Difference: 200360 (256%)

Pixel Rate

If using a high resolution is important to you, then the GeForce RTX 2080 is the winner, by far. (explain)

GeForce RTX 2080		96960 Mpixels/sec
GeForce GTX 660		23520 Mpixels/sec
	Difference: 73440 (312%)

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 (in units of megabytes per second) that can be transported over the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 again. If 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, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.