GeForce GTX 965M vs Geforce GTX 670

Intro

Compare all that to the Geforce GTX 670, which features core clock speeds of 915 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 memory. It features 1344 SPUs as well as 112 TAUs and 32 ROPs.

Display Graphs

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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 670		7351 points
GeForce GTX 965M		5650 points
	Difference: 1701 (30%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
Geforce GTX 670		170 Watts
	Difference: 110 Watts (183%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 670 will be 200% quicker than the GeForce GTX 965M in general, because of its greater bandwidth. (explain)

Geforce GTX 670		192000 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 128000 (200%)

Texel Rate

The Geforce GTX 670 will be a lot (more or less 70%) more effective at AF than the GeForce GTX 965M. (explain)

Geforce GTX 670		102480 Mtexels/sec
GeForce GTX 965M		60416 Mtexels/sec
	Difference: 42064 (70%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 965M is the winner, but not by far. (explain)

GeForce GTX 965M		30208 Mpixels/sec
Geforce GTX 670		29280 Mpixels/sec
	Difference: 928 (3%)

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 (counted in megabytes per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster 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 in one second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.