GeForce GT 450 (OEM) vs GeForce GTX 970

Intro

Compare those specs to the GeForce GTX 970, which comes with a core clock speed of 1050 MHz and a GDDR5 memory speed of 1750 MHz. It also features a 256-bit memory bus, and uses a 28 nm design. It is comprised of 1664 SPUs, 104 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM)		106 Watts
GeForce GTX 970		145 Watts
	Difference: 39 Watts (37%)

Memory Bandwidth

In theory, the GeForce GTX 970 is 133% quicker than the GeForce GT 450 (OEM) overall, due to its greater data rate. (explain)

GeForce GTX 970		224000 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 128000 (133%)

Texel Rate

The GeForce GTX 970 should be a lot (about 476%) better at anisotropic filtering than the GeForce GT 450 (OEM). (explain)

GeForce GTX 970		109200 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 90240 (476%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 970 is superior to the GeForce GT 450 (OEM), by a large margin. (explain)

GeForce GTX 970		67200 Mpixels/sec
GeForce GT 450 (OEM)		18960 Mpixels/sec
	Difference: 48240 (254%)

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 information (measured in MB per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher 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 texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the video 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 most pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.