GeForce 940M vs Geforce GTX 690

Intro

Compare all that to the Geforce GTX 690, which has a clock frequency of 915 MHz and a GDDR5 memory speed of 1502 MHz. It also features a 256-bit memory bus, and makes use of a 28 nm design. It is comprised of 1536 SPUs, 128 TAUs, and 32 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

Geforce GTX 690		13111 points
GeForce 940M		1740 points
	Difference: 11371 (654%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Geforce GTX 690 should theoretically be much faster than the GeForce 940M in general. (explain)

Geforce GTX 690		384512 MB/sec
GeForce 940M		16000 MB/sec
	Difference: 368512 (2303%)

Texel Rate

The Geforce GTX 690 is quite a bit (more or less 810%) better at AF than the GeForce 940M. (explain)

Geforce GTX 690		234240 Mtexels/sec
GeForce 940M		25728 Mtexels/sec
	Difference: 208512 (810%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Geforce GTX 690 is superior to the GeForce 940M, and very much so. (explain)

Geforce GTX 690		58560 Mpixels/sec
GeForce 940M		8576 Mpixels/sec
	Difference: 49984 (583%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of information (counted in MB per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 can be applied in one second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the 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 maximum number of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.