Nvidia Titan Xp vs Radeon R9 M275X

Intro

Compare those specifications to the Radeon R9 M275X, which features a core clock frequency of 900 MHz and a GDDR5 memory speed of 1125 MHz. It also features a 128-bit memory bus, and uses a 28 nm design. It is comprised of 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M275X		50 Watts
Nvidia Titan Xp		250 Watts
	Difference: 200 Watts (400%)

Memory Bandwidth

The Nvidia Titan Xp, in theory, should perform a lot faster than the Radeon R9 M275X in general. (explain)

Nvidia Titan Xp		560845 MB/sec
Radeon R9 M275X		72000 MB/sec
	Difference: 488845 (679%)

Texel Rate

The Nvidia Titan Xp will be a lot (about 955%) faster with regards to anisotropic filtering than the Radeon R9 M275X. (explain)

Nvidia Titan Xp		379680 Mtexels/sec
Radeon R9 M275X		36000 Mtexels/sec
	Difference: 343680 (955%)

Pixel Rate

If using a high resolution is important to you, then the Nvidia Titan Xp is a better choice, and very much so. (explain)

Nvidia Titan Xp		151872 Mpixels/sec
Radeon R9 M275X		14400 Mpixels/sec
	Difference: 137472 (955%)

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 transported across the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core 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 rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.