GeForce 940M vs GeForce GTX 980M

Intro

Compare all that to the GeForce GTX 980M, which features a core clock frequency of 1038 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 256-bit bus, and makes use of a 28 nm design. It is made up of 1536 SPUs, 96 Texture Address Units, and 64 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 980M		9476 points
GeForce 940M		1740 points
	Difference: 7736 (445%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the GeForce GTX 980M should in theory be a lot superior to the GeForce 940M in general. (explain)

GeForce GTX 980M		128000 MB/sec
GeForce 940M		16000 MB/sec
	Difference: 112000 (700%)

Texel Rate

The GeForce GTX 980M is a lot (approximately 287%) better at anisotropic filtering than the GeForce 940M. (explain)

GeForce GTX 980M		99648 Mtexels/sec
GeForce 940M		25728 Mtexels/sec
	Difference: 73920 (287%)

Pixel Rate

The GeForce GTX 980M will be quite a bit (about 675%) better at full screen anti-aliasing than the GeForce 940M, and able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 980M		66432 Mpixels/sec
GeForce 940M		8576 Mpixels/sec
	Difference: 57856 (675%)

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 (in units of MB per second) that can be moved across the external memory interface within a second. It's worked out by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 once 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 anti-aliasing, HDR 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 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 one second.

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