GeForce GTX 660 vs Radeon RX Vega 64

Intro

Compare that to the Radeon RX Vega 64, which comes with core speeds of 1247 MHz on the GPU, and 1890 MHz on the 8192 MB of HBM2 memory. It features 4096 SPUs as well as 256 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

Radeon RX Vega 64		21986 points
GeForce GTX 660		5063 points
	Difference: 16923 (334%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660		140 Watts
Radeon RX Vega 64		295 Watts
	Difference: 155 Watts (111%)

Memory Bandwidth

In theory, the Radeon RX Vega 64 will be 244% quicker than the GeForce GTX 660 in general, due to its higher bandwidth. (explain)

Radeon RX Vega 64		495411 MB/sec
GeForce GTX 660		144192 MB/sec
	Difference: 351219 (244%)

Texel Rate

The Radeon RX Vega 64 is a lot (about 307%) more effective at AF than the GeForce GTX 660. (explain)

Radeon RX Vega 64		319232 Mtexels/sec
GeForce GTX 660		78400 Mtexels/sec
	Difference: 240832 (307%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX Vega 64 is the winner, and very much so. (explain)

Radeon RX Vega 64		79808 Mpixels/sec
GeForce GTX 660		23520 Mpixels/sec
	Difference: 56288 (239%)

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 max amount of information (measured in MB per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.