GeForce 940M vs Radeon HD 7870

Intro

Compare all of that to the Radeon HD 7870, which makes use of a 28 nm design. AMD has set the core speed at 1000 MHz. The GDDR5 memory works at a speed of 1200 MHz on this specific card. It features 1280 SPUs along with 80 Texture Address Units 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 7870		6230 points
GeForce 940M		1740 points
	Difference: 4490 (258%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 7870 should be quite a bit faster than the GeForce 940M in general. (explain)

Radeon HD 7870		153600 MB/sec
GeForce 940M		16000 MB/sec
	Difference: 137600 (860%)

Texel Rate

The Radeon HD 7870 is quite a bit (more or less 211%) faster with regards to anisotropic filtering than the GeForce 940M. (explain)

Radeon HD 7870		80000 Mtexels/sec
GeForce 940M		25728 Mtexels/sec
	Difference: 54272 (211%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 7870 is a better choice, by far. (explain)

Radeon HD 7870		32000 Mpixels/sec
GeForce 940M		8576 Mpixels/sec
	Difference: 23424 (273%)

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 megabytes per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

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