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GeForce GTX 965M vs Geforce GTX 670

Intro

The GeForce GTX 965M comes with clock speeds of 944 MHz on the GPU, and 1000 MHz on the 2048 MB of GDDR5 memory. It features 1024 SPUs along with 64 Texture Address Units and 32 ROPs.

Compare those specifications to the Geforce GTX 670, which has core clock speeds of 915 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 memory. It features 1344 SPUs along with 112 TAUs and 32 Rasterization Operator Units.

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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, the Geforce GTX 670 should perform a lot faster than the GeForce GTX 965M overall. (explain)

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

Texel Rate

The Geforce GTX 670 should be quite a bit (about 70%) more effective at texture filtering 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 a high resolution is important to you, then the GeForce GTX 965M is superior to the Geforce GTX 670, not by a very large margin though. (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

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GeForce GTX 965M

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Geforce GTX 670

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Specifications

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Model	GeForce GTX 965M	Geforce GTX 670
Manufacturer	nVidia	nVidia
Year	January 5 2015	May 2012
Code Name	GM204	GK104
Memory	2048 MB	2048 MB
Core Speed	944 MHz	915 MHz
Memory Speed	4000 MHz	6000 MHz
Power (Max TDP)	60 watts	170 watts
Bandwidth	64000 MB/sec	192000 MB/sec
Texel Rate	60416 Mtexels/sec	102480 Mtexels/sec
Pixel Rate	30208 Mpixels/sec	29280 Mpixels/sec
Unified Shaders	1024	1344
Texture Mapping Units	64	112
Render Output Units	32	32
Bus Type	GDDR5	GDDR5
Bus Width	128-bit	256-bit
Fab Process	28 nm	28 nm
Transistors	(Unknown) million	3540 million
Bus	PCIe 3.0 x16	PCIe 3.0 x16
DirectX Version	DirectX 12	DirectX 11.0
OpenGL Version	OpenGL 4.5	OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of MB per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, 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 number is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units 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 fill rate is also dependant on many 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.

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