GeForce GTX 465 vs GeForce GTX 950

Intro

Compare all that to the GeForce GTX 950, which makes use of a 28 nm design. nVidia has set the core frequency at 1024 MHz. The GDDR5 RAM works at a frequency of 1652 MHz on this model. It features 768 SPUs along with 48 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950		90 Watts
GeForce GTX 465		200 Watts
	Difference: 110 Watts (122%)

Memory Bandwidth

In theory, the GeForce GTX 950 should be a small bit faster than the GeForce GTX 465 overall. (explain)

GeForce GTX 950		105728 MB/sec
GeForce GTX 465		102592 MB/sec
	Difference: 3136 (3%)

Texel Rate

The GeForce GTX 950 should be much (about 84%) more effective at texture filtering than the GeForce GTX 465. (explain)

GeForce GTX 950		49152 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 22444 (84%)

Pixel Rate

The GeForce GTX 950 is a lot (about 69%) more effective at AA than the GeForce GTX 465, and also will be able to handle higher resolutions more effectively. (explain)

GeForce GTX 950		32768 Mpixels/sec
GeForce GTX 465		19424 Mpixels/sec
	Difference: 13344 (69%)

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 maximum amount of information (counted in megabytes per second) that can be moved across the external memory interface in a second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.