GeForce 940M vs Radeon HD 7850

Intro

Compare those specs to the Radeon HD 7850, which comes with clock speeds of 860 MHz on the GPU, and 1200 MHz on the 2048 MB of GDDR5 memory. It features 1024 SPUs as well as 64 TAUs and 32 Rasterization Operator Units.

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 HD 7850		5200 points
GeForce 940M		1740 points
	Difference: 3460 (199%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 7850 should theoretically be much faster than the GeForce 940M overall. (explain)

Radeon HD 7850		153600 MB/sec
GeForce 940M		16000 MB/sec
	Difference: 137600 (860%)

Texel Rate

The Radeon HD 7850 should be quite a bit (about 114%) better at texture filtering than the GeForce 940M. (explain)

Radeon HD 7850		55040 Mtexels/sec
GeForce 940M		25728 Mtexels/sec
	Difference: 29312 (114%)

Pixel Rate

The Radeon HD 7850 should be a lot (more or less 221%) faster with regards to FSAA than the GeForce 940M, and should be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon HD 7850		27520 Mpixels/sec
GeForce 940M		8576 Mpixels/sec
	Difference: 18944 (221%)

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 information (counted in MB per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs 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 fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.