GeForce GT 450 (OEM) vs GeForce GTX 950

Intro

Compare all of that to the GeForce GTX 950, which features core clock speeds of 1024 MHz on the GPU, and 1652 MHz on the 2048 MB of GDDR5 memory. It features 768 SPUs along with 48 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950		90 Watts
GeForce GT 450 (OEM)		106 Watts
	Difference: 16 Watts (18%)

Memory Bandwidth

Performance-wise, the GeForce GTX 950 should theoretically be just a bit better than the GeForce GT 450 (OEM) in general. (explain)

GeForce GTX 950		105728 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 9728 (10%)

Texel Rate

The GeForce GTX 950 will be quite a bit (about 159%) more effective at anisotropic filtering than the GeForce GT 450 (OEM). (explain)

GeForce GTX 950		49152 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 30192 (159%)

Pixel Rate

The GeForce GTX 950 should be a lot (about 73%) better at FSAA than the GeForce GT 450 (OEM), and also should be able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 950		32768 Mpixels/sec
GeForce GT 450 (OEM)		18960 Mpixels/sec
	Difference: 13808 (73%)

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 transported past the external memory interface in one second. It 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 bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better 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 most pixels 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 - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.