GeForce GTX 650 Ti 2GB vs GeForce GTX 850M

Intro

Compare all of that to the GeForce GTX 850M, which comes with a core clock frequency of 876 MHz and a DDR3 memory frequency of 1000 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It is comprised of 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M		40 Watts
GeForce GTX 650 Ti 2GB		110 Watts
	Difference: 70 Watts (175%)

Memory Bandwidth

The GeForce GTX 650 Ti 2GB should theoretically be much faster than the GeForce GTX 850M in general. (explain)

GeForce GTX 650 Ti 2GB		86400 MB/sec
GeForce GTX 850M		32000 MB/sec
	Difference: 54400 (170%)

Texel Rate

The GeForce GTX 650 Ti 2GB is quite a bit (about 69%) faster with regards to texture filtering than the GeForce GTX 850M. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
GeForce GTX 850M		35040 Mtexels/sec
	Difference: 24352 (69%)

Pixel Rate

The GeForce GTX 650 Ti 2GB will be a little bit (approximately 6%) better at FSAA than the GeForce GTX 850M, and should be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
GeForce GTX 850M		14016 Mpixels/sec
	Difference: 832 (6%)

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 (in units of MB per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. 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 number of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka 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, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.