Nvidia Titan X vs Radeon RX Vega 64

Intro

Compare all that to the Radeon RX Vega 64, which has a core clock frequency of 1247 MHz and a HBM2 memory speed of 1890 MHz. It also uses a 2048-bit bus, and makes use of a 14 nm design. It is made up of 4096 SPUs, 256 Texture Address Units, and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Nvidia Titan X		250 Watts
Radeon RX Vega 64		295 Watts
	Difference: 45 Watts (18%)

Memory Bandwidth

Theoretically speaking, the Radeon RX Vega 64 should be 1% quicker than the Nvidia Titan X overall, due to its higher bandwidth. (explain)

Radeon RX Vega 64		495411 MB/sec
Nvidia Titan X		491520 MB/sec
	Difference: 3891 (1%)

Texel Rate

The Radeon RX Vega 64 will be just a bit (approximately 1%) more effective at anisotropic filtering than the Nvidia Titan X. (explain)

Radeon RX Vega 64		319232 Mtexels/sec
Nvidia Titan X		317408 Mtexels/sec
	Difference: 1824 (1%)

Pixel Rate

The Nvidia Titan X should be a lot (approximately 70%) faster with regards to AA than the Radeon RX Vega 64, and also able to handle higher screen resolutions while still performing well. (explain)

Nvidia Titan X		136032 Mpixels/sec
Radeon RX Vega 64		79808 Mpixels/sec
	Difference: 56224 (70%)

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 maximum amount of information (counted in megabytes per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 amount of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels 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 a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.