GeForce GTS 250 1GB vs GeForce GTX 1050 3GB

Intro

Compare those specifications to the GeForce GTX 1050 3GB, which comes with GPU clock speed of 1392 MHz, and 3072 MB of GDDR5 RAM running at 1750 MHz through a 96-bit bus. It also is made up of 768 SPUs, 48 Texture Address Units, and 24 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1050 3GB		75 Watts
GeForce GTS 250 1GB		145 Watts
	Difference: 70 Watts (93%)

Memory Bandwidth

In theory, the GeForce GTX 1050 3GB should perform a lot faster than the GeForce GTS 250 1GB overall. (explain)

GeForce GTX 1050 3GB		86016 MB/sec
GeForce GTS 250 1GB		70400 MB/sec
	Difference: 15616 (22%)

Texel Rate

The GeForce GTX 1050 3GB should be quite a bit (about 41%) better at texture filtering than the GeForce GTS 250 1GB. (explain)

GeForce GTX 1050 3GB		66816 Mtexels/sec
GeForce GTS 250 1GB		47232 Mtexels/sec
	Difference: 19584 (41%)

Pixel Rate

The GeForce GTX 1050 3GB should be quite a bit (about 183%) more effective at full screen anti-aliasing than the GeForce GTS 250 1GB, and also will be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 1050 3GB		33408 Mpixels/sec
GeForce GTS 250 1GB		11808 Mpixels/sec
	Difference: 21600 (183%)

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 largest amount of data (in units of MB per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the 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 video card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.