GeForce GTX 650 Ti vs GeForce GTX 870M

Intro

Compare those specifications to the GeForce GTX 870M, which makes use of a 28 nm design. nVidia has clocked the core frequency at 941 MHz. The GDDR5 memory is set to run at a frequency of 1000 MHz on this particular card. It features 1344 SPUs along with 112 TAUs and 24 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 870M		4770 points
GeForce GTX 650 Ti		3434 points
	Difference: 1336 (39%)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

The GeForce GTX 870M should theoretically perform just a bit faster than the GeForce GTX 650 Ti in general. (explain)

GeForce GTX 870M		96000 MB/sec
GeForce GTX 650 Ti		86400 MB/sec
	Difference: 9600 (11%)

Texel Rate

The GeForce GTX 870M should be quite a bit (approximately 77%) better at AF than the GeForce GTX 650 Ti. (explain)

GeForce GTX 870M		105392 Mtexels/sec
GeForce GTX 650 Ti		59392 Mtexels/sec
	Difference: 46000 (77%)

Pixel Rate

The GeForce GTX 870M is quite a bit (about 52%) more effective at anti-aliasing than the GeForce GTX 650 Ti, and will be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 870M		22584 Mpixels/sec
GeForce GTX 650 Ti		14848 Mpixels/sec
	Difference: 7736 (52%)

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 information (in units of megabytes per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the 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 texture map elements (texels) that are processed in one second. This is worked out by multiplying the total number of texture units of the card 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 applied in one second.

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