GeForce GTX 965M vs Geforce GTX 780

Intro

Compare that to the Geforce GTX 780, which uses a 28 nm design. nVidia has clocked the core frequency at 863 MHz. The GDDR5 RAM works at a frequency of 1502 MHz on this specific card. It features 2304 SPUs as well as 192 Texture Address Units and 48 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 780		10082 points
GeForce GTX 965M		5650 points
	Difference: 4432 (78%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
Geforce GTX 780		250 Watts
	Difference: 190 Watts (317%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 780 should be 351% quicker than the GeForce GTX 965M overall, due to its greater data rate. (explain)

Geforce GTX 780		288384 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 224384 (351%)

Texel Rate

The Geforce GTX 780 should be a lot (about 174%) more effective at AF than the GeForce GTX 965M. (explain)

Geforce GTX 780		165696 Mtexels/sec
GeForce GTX 965M		60416 Mtexels/sec
	Difference: 105280 (174%)

Pixel Rate

If running with high levels of AA is important to you, then the Geforce GTX 780 is a better choice, by a large margin. (explain)

Geforce GTX 780		41424 Mpixels/sec
GeForce GTX 965M		30208 Mpixels/sec
	Difference: 11216 (37%)

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 megabytes per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number of texture units of the card by the core 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 in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount 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 outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.