GeForce GTX 980 vs GeForce GTX 980M

Intro

Compare those specifications to the GeForce GTX 980M, which comes with GPU clock speed of 1038 MHz, and 4096 MB of GDDR5 memory running at 1000 MHz through a 256-bit bus. It also is made up of 1536 SPUs, 96 Texture Address Units, and 64 ROPs.

Display Graphs

Hide Graphs

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 980		13552 points
GeForce GTX 980M		9476 points
	Difference: 4076 (43%)

Zcash Mining Hash Rate

GeForce GTX 980		408 Sol/s
GeForce GTX 980M		155 Sol/s
	Difference: 253 (163%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M		100 Watts
GeForce GTX 980		165 Watts
	Difference: 65 Watts (65%)

Memory Bandwidth

Performance-wise, the GeForce GTX 980 should theoretically be much superior to the GeForce GTX 980M overall. (explain)

GeForce GTX 980		224000 MB/sec
GeForce GTX 980M		128000 MB/sec
	Difference: 96000 (75%)

Texel Rate

The GeForce GTX 980 is a lot (about 45%) better at AF than the GeForce GTX 980M. (explain)

GeForce GTX 980		144128 Mtexels/sec
GeForce GTX 980M		99648 Mtexels/sec
	Difference: 44480 (45%)

Pixel Rate

The GeForce GTX 980 is a little bit (approximately 8%) faster with regards to FSAA than the GeForce GTX 980M, and also able to handle higher screen resolutions better. (explain)

GeForce GTX 980		72064 Mpixels/sec
GeForce GTX 980M		66432 Mpixels/sec
	Difference: 5632 (8%)

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 max amount of information (in units of megabytes per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 amount of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the 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 number of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number 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 fill rate is also dependant 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 maximum fill rate.