GeForce GT 450 (OEM) vs GeForce GTX 970

Intro

Compare all that to the GeForce GTX 970, which uses a 28 nm design. nVidia has set the core speed at 1050 MHz. The GDDR5 memory runs at a speed of 1750 MHz on this particular card. It features 1664 SPUs as well as 104 Texture Address Units and 64 ROPs.

Display Graphs

Hide Graphs

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

Theoretically speaking, the GeForce GTX 970 is 133% quicker than the GeForce GT 450 (OEM) in general, 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 will be much (approximately 476%) faster with regards to texture 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 running with lots of anti-aliasing is important to you, then the GeForce GTX 970 is a better choice, by far. (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 largest amount of data (counted in MB per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total number of texture units of the card 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 processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.