GeForce GTX 660 vs Radeon RX 5700

Intro

Compare all of that to the Radeon RX 5700, which features clock speeds of 1465 MHz on the GPU, and 1750 MHz on the 8096 MB of GDDR6 memory. It features 2304 SPUs along with 144 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660		140 Watts
Radeon RX 5700		180 Watts
	Difference: 40 Watts (29%)

Memory Bandwidth

Theoretically, the Radeon RX 5700 should perform much faster than the GeForce GTX 660 overall. (explain)

Radeon RX 5700		458752 MB/sec
GeForce GTX 660		144192 MB/sec
	Difference: 314560 (218%)

Texel Rate

The Radeon RX 5700 will be quite a bit (approximately 169%) better at AF than the GeForce GTX 660. (explain)

Radeon RX 5700		210960 Mtexels/sec
GeForce GTX 660		78400 Mtexels/sec
	Difference: 132560 (169%)

Pixel Rate

The Radeon RX 5700 should be quite a bit (approximately 299%) better at AA than the GeForce GTX 660, and also will be able to handle higher screen resolutions better. (explain)

Radeon RX 5700		93760 Mpixels/sec
GeForce GTX 660		23520 Mpixels/sec
	Difference: 70240 (299%)

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 megabytes per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is calculated 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 applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. 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 output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.