GeForce GTX 650 Ti vs GeForce GTX 965M

Intro

Compare all of that to the GeForce GTX 965M, which features a core clock speed of 944 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 128-bit memory bus, and makes use of a 28 nm design. It is made up of 1024 SPUs, 64 Texture Address Units, 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 965M		5650 points
GeForce GTX 650 Ti		3434 points
	Difference: 2216 (65%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
GeForce GTX 650 Ti		110 Watts
	Difference: 50 Watts (83%)

Memory Bandwidth

Performance-wise, the GeForce GTX 650 Ti should in theory be much superior to the GeForce GTX 965M overall. (explain)

GeForce GTX 650 Ti		86400 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 22400 (35%)

Texel Rate

The GeForce GTX 965M is a small bit (approximately 2%) faster with regards to AF than the GeForce GTX 650 Ti. (explain)

GeForce GTX 965M		60416 Mtexels/sec
GeForce GTX 650 Ti		59392 Mtexels/sec
	Difference: 1024 (2%)

Pixel Rate

The GeForce GTX 965M should be a lot (more or less 103%) more effective at anti-aliasing than the GeForce GTX 650 Ti, and will be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 965M		30208 Mpixels/sec
GeForce GTX 650 Ti		14848 Mpixels/sec
	Difference: 15360 (103%)

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: Bandwidth is the max amount of data (counted in MB per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number 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 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 card can possibly write to the 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 - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.