GeForce GTX 1050 3GB vs GeForce GTX 850M

Intro

Compare those specifications to the GeForce GTX 850M, which makes use of a 28 nm design. nVidia has set the core frequency at 876 MHz. The DDR3 RAM works at a frequency of 1000 MHz on this card. It features 640 SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M		40 Watts
GeForce GTX 1050 3GB		75 Watts
	Difference: 35 Watts (88%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 1050 3GB should theoretically be a lot superior to the GeForce GTX 850M overall. (explain)

GeForce GTX 1050 3GB		86016 MB/sec
GeForce GTX 850M		32000 MB/sec
	Difference: 54016 (169%)

Texel Rate

The GeForce GTX 1050 3GB should be much (more or less 91%) better at anisotropic filtering than the GeForce GTX 850M. (explain)

GeForce GTX 1050 3GB		66816 Mtexels/sec
GeForce GTX 850M		35040 Mtexels/sec
	Difference: 31776 (91%)

Pixel Rate

The GeForce GTX 1050 3GB should be much (about 138%) faster with regards to anti-aliasing than the GeForce GTX 850M, and able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 1050 3GB		33408 Mpixels/sec
GeForce GTX 850M		14016 Mpixels/sec
	Difference: 19392 (138%)

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 maximum amount of information (counted in MB per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 again. If it uses 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 high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.