GeForce GTX 965M vs Geforce GTX 680

Intro

Compare those specifications to the Geforce GTX 680, which has GPU clock speed of 1006 MHz, and 2048 MB of GDDR5 memory set to run at 1502 MHz through a 256-bit bus. It also features 1536 SPUs, 128 TAUs, 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 965M		5650 points
	Difference: 2000 (35%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
Geforce GTX 680		195 Watts
	Difference: 135 Watts (225%)

Memory Bandwidth

Theoretically, the Geforce GTX 680 should be much faster than the GeForce GTX 965M in general. (explain)

Geforce GTX 680		192256 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 128256 (200%)

Texel Rate

The Geforce GTX 680 will be much (more or less 113%) better at anisotropic filtering than the GeForce GTX 965M. (explain)

Geforce GTX 680		128768 Mtexels/sec
GeForce GTX 965M		60416 Mtexels/sec
	Difference: 68352 (113%)

Pixel Rate

If using high levels of AA is important to you, then the Geforce GTX 680 is the winner, but it probably won't make a huge difference. (explain)

Geforce GTX 680		32192 Mpixels/sec
GeForce GTX 965M		30208 Mpixels/sec
	Difference: 1984 (7%)

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 (in units of megabytes per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher 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 amount of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.