GeForce GTX 1050 3GB vs GeForce GTX 650

Intro

Compare all of that to the GeForce GTX 650, which features a clock speed of 1058 MHz and a GDDR5 memory speed of 1250 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It features 384 SPUs, 32 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
GeForce GTX 1050 3GB		75 Watts
	Difference: 11 Watts (17%)

Memory Bandwidth

Performance-wise, the GeForce GTX 1050 3GB should theoretically be a small bit better than the GeForce GTX 650 overall. (explain)

GeForce GTX 1050 3GB		86016 MB/sec
GeForce GTX 650		80000 MB/sec
	Difference: 6016 (8%)

Texel Rate

The GeForce GTX 1050 3GB is quite a bit (more or less 97%) more effective at texture filtering than the GeForce GTX 650. (explain)

GeForce GTX 1050 3GB		66816 Mtexels/sec
GeForce GTX 650		33856 Mtexels/sec
	Difference: 32960 (97%)

Pixel Rate

The GeForce GTX 1050 3GB is much (more or less 97%) faster with regards to anti-aliasing than the GeForce GTX 650, and should be able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 1050 3GB		33408 Mpixels/sec
GeForce GTX 650		16928 Mpixels/sec
	Difference: 16480 (97%)

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 largest amount of data (in units of MB per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the interface width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). 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 reach the max fill rate.