GeForce GTX 660 vs Radeon RX Vega 56

Intro

Compare those specs to the Radeon RX Vega 56, which makes use of a 14 nm design. AMD has clocked the core speed at 1156 MHz. The HBM2 memory works at a speed of 1600 MHz on this particular model. It features 3584 SPUs as well as 224 TAUs and 64 ROPs.

Display Graphs

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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 56		21011 points
GeForce GTX 660		5063 points
	Difference: 15948 (315%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660		140 Watts
Radeon RX Vega 56		210 Watts
	Difference: 70 Watts (50%)

Memory Bandwidth

The Radeon RX Vega 56 should in theory perform quite a bit faster than the GeForce GTX 660 in general. (explain)

Radeon RX Vega 56		419430 MB/sec
GeForce GTX 660		144192 MB/sec
	Difference: 275238 (191%)

Texel Rate

The Radeon RX Vega 56 should be quite a bit (approximately 230%) more effective at anisotropic filtering than the GeForce GTX 660. (explain)

Radeon RX Vega 56		258944 Mtexels/sec
GeForce GTX 660		78400 Mtexels/sec
	Difference: 180544 (230%)

Pixel Rate

The Radeon RX Vega 56 should be quite a bit (approximately 215%) better at AA than the GeForce GTX 660, and also should be able to handle higher resolutions better. (explain)

Radeon RX Vega 56		73984 Mpixels/sec
GeForce GTX 660		23520 Mpixels/sec
	Difference: 50464 (215%)

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 max amount of information (counted in megabytes per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the 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 number of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling 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 can possibly write to the local memory per 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 - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.