GeForce GTS 450 vs GeForce GTX 1050 3GB

Intro

Compare those specifications to the GeForce GTX 1050 3GB, which comes with a clock frequency of 1392 MHz and a GDDR5 memory frequency of 1750 MHz. It also makes use of a 96-bit bus, and uses a 14 nm design. It is made up of 768 SPUs, 48 TAUs, and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1050 3GB		75 Watts
GeForce GTS 450		106 Watts
	Difference: 31 Watts (41%)

Memory Bandwidth

In theory, the GeForce GTX 1050 3GB should be 49% quicker than the GeForce GTS 450 in general, due to its higher bandwidth. (explain)

GeForce GTX 1050 3GB		86016 MB/sec
GeForce GTS 450		57728 MB/sec
	Difference: 28288 (49%)

Texel Rate

The GeForce GTX 1050 3GB will be quite a bit (approximately 167%) more effective at AF than the GeForce GTS 450. (explain)

GeForce GTX 1050 3GB		66816 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 41760 (167%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 1050 3GB is a better choice, by a large margin. (explain)

GeForce GTX 1050 3GB		33408 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 20880 (167%)

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 transferred over the external memory interface in a second. It is calculated by multiplying the card's bus 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 anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

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