GeForce GTX 980M vs Geforce GTX 680

Intro

Compare that to the Geforce GTX 680, which features clock speeds of 1006 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.

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 980M		9476 points
Geforce GTX 680		7650 points
	Difference: 1826 (24%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M		100 Watts
Geforce GTX 680		195 Watts
	Difference: 95 Watts (95%)

Memory Bandwidth

In theory, the Geforce GTX 680 is 50% quicker than the GeForce GTX 980M overall, because of its greater data rate. (explain)

Geforce GTX 680		192256 MB/sec
GeForce GTX 980M		128000 MB/sec
	Difference: 64256 (50%)

Texel Rate

The Geforce GTX 680 should be quite a bit (more or less 29%) more effective at anisotropic filtering than the GeForce GTX 980M. (explain)

Geforce GTX 680		128768 Mtexels/sec
GeForce GTX 980M		99648 Mtexels/sec
	Difference: 29120 (29%)

Pixel Rate

The GeForce GTX 980M is quite a bit (more or less 106%) more effective at FSAA than the Geforce GTX 680, and also will be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 980M		66432 Mpixels/sec
Geforce GTX 680		32192 Mpixels/sec
	Difference: 34240 (106%)

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 max amount of data (measured in MB per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If it uses 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 higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.