GeForce 940M vs Geforce GTX 690

Intro

Compare those specifications to the Geforce GTX 690, which makes use of a 28 nm design. nVidia has clocked the core speed at 915 MHz. The GDDR5 RAM is set to run at a speed of 1502 MHz on this card. It features 1536 SPUs as well as 128 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

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

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Geforce GTX 690 should in theory 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%) more effective at texture filtering than the GeForce 940M. (explain)

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

Pixel Rate

The Geforce GTX 690 will be much (approximately 583%) faster with regards to AA than the GeForce 940M, and will be capable of handling higher screen resolutions without losing too much performance. (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 data (counted in megabytes per second) that can be moved past the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 number of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.