GeForce 940M vs Radeon R9 M395X

Intro

Compare those specifications to the Radeon R9 M395X, which features a core clock speed of 723 MHz and a GDDR5 memory frequency of 1250 MHz. It also uses a 256-bit memory bus, and uses a 28 nm design. It is made up of 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon R9 M395X should be a lot faster than the GeForce 940M overall. (explain)

Radeon R9 M395X		160000 MB/sec
GeForce 940M		16000 MB/sec
	Difference: 144000 (900%)

Texel Rate

The Radeon R9 M395X should be a lot (approximately 260%) faster with regards to AF than the GeForce 940M. (explain)

Radeon R9 M395X		92544 Mtexels/sec
GeForce 940M		25728 Mtexels/sec
	Difference: 66816 (260%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 M395X is the winner, by far. (explain)

Radeon R9 M395X		23136 Mpixels/sec
GeForce 940M		8576 Mpixels/sec
	Difference: 14560 (170%)

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 largest amount of data (counted in MB per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated 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 rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.