GeForce GTX 965M vs GeForce GTX Titan

Intro

Compare those specs to the GeForce GTX Titan, which features GPU clock speed of 837 MHz, and 6144 MB of GDDR5 RAM running at 1502 MHz through a 384-bit bus. It also is made up of 2688 SPUs, 224 Texture Address Units, and 48 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 Titan		10162 points
GeForce GTX 965M		5650 points
	Difference: 4512 (80%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

As far as performance goes, the GeForce GTX Titan should in theory be much better than the GeForce GTX 965M in general. (explain)

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

Texel Rate

The GeForce GTX Titan is quite a bit (more or less 210%) more effective at anisotropic filtering than the GeForce GTX 965M. (explain)

GeForce GTX Titan		187488 Mtexels/sec
GeForce GTX 965M		60416 Mtexels/sec
	Difference: 127072 (210%)

Pixel Rate

The GeForce GTX Titan is much (approximately 33%) faster with regards to AA than the GeForce GTX 965M, and will be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX Titan		40176 Mpixels/sec
GeForce GTX 965M		30208 Mpixels/sec
	Difference: 9968 (33%)

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 data (counted in megabytes per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once 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 AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the video 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 most pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.