GeForce 920M vs Radeon R9 M395X

Intro

Compare those specifications to the Radeon R9 M395X, which uses a 28 nm design. AMD has clocked the core speed at 723 MHz. The GDDR5 RAM runs at a speed of 1250 MHz on this particular model. It features 2048 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M395X, in theory, should be quite a bit faster than the GeForce 920M overall. (explain)

Radeon R9 M395X		160000 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 145600 (1011%)

Texel Rate

The Radeon R9 M395X is quite a bit (approximately 203%) better at texture filtering than the GeForce 920M. (explain)

Radeon R9 M395X		92544 Mtexels/sec
GeForce 920M		30528 Mtexels/sec
	Difference: 62016 (203%)

Pixel Rate

The Radeon R9 M395X will be quite a bit (about 203%) better at full screen anti-aliasing than the GeForce 920M, and also able to handle higher screen resolutions better. (explain)

Radeon R9 M395X		23136 Mpixels/sec
GeForce 920M		7632 Mpixels/sec
	Difference: 15504 (203%)

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 (in units of MB per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the bus width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The figure 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 outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.