GeForce 940M vs Geforce GTX 770

Intro

Compare that to the Geforce GTX 770, which makes use of a 28 nm design. nVidia has clocked the core speed at 1046 MHz. The GDDR5 memory is set to run at a speed of 1753 MHz on this particular card. It features 1536 SPUs along with 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 770		7854 points
GeForce 940M		1740 points
	Difference: 6114 (351%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Geforce GTX 770, in theory, should be quite a bit faster than the GeForce 940M overall. (explain)

Geforce GTX 770		224384 MB/sec
GeForce 940M		16000 MB/sec
	Difference: 208384 (1302%)

Texel Rate

The Geforce GTX 770 is a lot (about 420%) more effective at anisotropic filtering than the GeForce 940M. (explain)

Geforce GTX 770		133888 Mtexels/sec
GeForce 940M		25728 Mtexels/sec
	Difference: 108160 (420%)

Pixel Rate

The Geforce GTX 770 will be quite a bit (approximately 290%) faster with regards to AA than the GeForce 940M, and also should be able to handle higher resolutions without slowing down too much. (explain)

Geforce GTX 770		33472 Mpixels/sec
GeForce 940M		8576 Mpixels/sec
	Difference: 24896 (290%)

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 largest amount of information (counted in megabytes per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.