GeForce GTX 950M vs Geforce GTX 680

Intro

Compare all of that to the Geforce GTX 680, which comes with a core clock frequency of 1006 MHz and a GDDR5 memory speed of 1502 MHz. It also uses a 256-bit memory bus, and makes use of a 28 nm design. It features 1536 SPUs, 128 Texture Address Units, and 32 Raster Operation 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 680		7650 points
GeForce GTX 950M		3330 points
	Difference: 4320 (130%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
Geforce GTX 680		195 Watts
	Difference: 140 Watts (255%)

Memory Bandwidth

The Geforce GTX 680, in theory, should perform quite a bit faster than the GeForce GTX 950M in general. (explain)

Geforce GTX 680		192256 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 160256 (501%)

Texel Rate

The Geforce GTX 680 is much (about 252%) faster with regards to AF than the GeForce GTX 950M. (explain)

Geforce GTX 680		128768 Mtexels/sec
GeForce GTX 950M		36560 Mtexels/sec
	Difference: 92208 (252%)

Pixel Rate

The Geforce GTX 680 is quite a bit (about 120%) better at anti-aliasing than the GeForce GTX 950M, and should be able to handle higher resolutions more effectively. (explain)

Geforce GTX 680		32192 Mpixels/sec
GeForce GTX 950M		14624 Mpixels/sec
	Difference: 17568 (120%)

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 (counted in megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 number of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the clock 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 output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.