GeForce 940M vs Radeon R9 Nano

Intro

Compare those specifications to the Radeon R9 Nano, which has clock speeds of 1000 MHz on the GPU, and 500 MHz on the 4096 MB of HBM memory. It features 4096 SPUs as well as 256 Texture Address Units and 64 ROPs.

Display Graphs

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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 R9 Nano		14918 points
GeForce 940M		1740 points
	Difference: 13178 (757%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 Nano should be 3100% faster than the GeForce 940M overall, due to its higher bandwidth. (explain)

Radeon R9 Nano		512000 MB/sec
GeForce 940M		16000 MB/sec
	Difference: 496000 (3100%)

Texel Rate

The Radeon R9 Nano is quite a bit (about 895%) more effective at AF than the GeForce 940M. (explain)

Radeon R9 Nano		256000 Mtexels/sec
GeForce 940M		25728 Mtexels/sec
	Difference: 230272 (895%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 Nano is a better choice, by a large margin. (explain)

Radeon R9 Nano		64000 Mpixels/sec
GeForce 940M		8576 Mpixels/sec
	Difference: 55424 (646%)

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 data (in units of megabytes per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total amount of texture units by the core 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 in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.