GeForce GT 450 (OEM) vs GeForce GTX 950

Intro

Compare all that to the GeForce GTX 950, which features a core clock frequency of 1024 MHz and a GDDR5 memory speed of 1652 MHz. It also makes use of a 128-bit memory bus, and uses a 28 nm design. It is made up of 768 SPUs, 48 TAUs, and 32 Raster Operation Units.

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

The GeForce GTX 950 should in theory perform a bit faster than the GeForce GT 450 (OEM) overall. (explain)

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

Texel Rate

The GeForce GTX 950 is a lot (about 159%) better 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

If running with a high screen resolution is important to you, then the GeForce GTX 950 is a better choice, by a large margin. (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: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the card's clock speed. 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 many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.