GeForce GTX 660 Ti vs Radeon RX Vega 64

Intro

Compare those specs to the Radeon RX Vega 64, which uses a 14 nm design. AMD has set the core frequency at 1247 MHz. The HBM2 RAM runs at a frequency of 1890 MHz on this specific card. It features 4096 SPUs as well as 256 Texture Address Units 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 Ti		6013 points
	Difference: 15973 (266%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 Ti		150 Watts
Radeon RX Vega 64		295 Watts
	Difference: 145 Watts (97%)

Memory Bandwidth

Theoretically, the Radeon RX Vega 64 should be a lot faster than the GeForce GTX 660 Ti overall. (explain)

Radeon RX Vega 64		495411 MB/sec
GeForce GTX 660 Ti		144000 MB/sec
	Difference: 351411 (244%)

Texel Rate

The Radeon RX Vega 64 should be quite a bit (more or less 212%) more effective at texture filtering than the GeForce GTX 660 Ti. (explain)

Radeon RX Vega 64		319232 Mtexels/sec
GeForce GTX 660 Ti		102480 Mtexels/sec
	Difference: 216752 (212%)

Pixel Rate

The Radeon RX Vega 64 should be much (more or less 263%) faster with regards to AA than the GeForce GTX 660 Ti, and also should be capable of handling higher resolutions better. (explain)

Radeon RX Vega 64		79808 Mpixels/sec
GeForce GTX 660 Ti		21960 Mpixels/sec
	Difference: 57848 (263%)

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 information (measured in megabytes per second) that can be transferred across the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher 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 per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.