GeForce GTX 460 1GB vs GeForce GTX 950

Intro

Compare that to the GeForce GTX 950, which features a GPU core clock speed of 1024 MHz, and 2048 MB of GDDR5 memory running at 1652 MHz through a 128-bit bus. It also is comprised of 768 SPUs, 48 Texture Address Units, 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 460 1GB		160 Watts
	Difference: 70 Watts (78%)

Memory Bandwidth

Performance-wise, the GeForce GTX 460 1GB should in theory be a small bit superior to the GeForce GTX 950 overall. (explain)

GeForce GTX 460 1GB		115200 MB/sec
GeForce GTX 950		105728 MB/sec
	Difference: 9472 (9%)

Texel Rate

The GeForce GTX 950 is much (more or less 30%) better at AF than the GeForce GTX 460 1GB. (explain)

GeForce GTX 950		49152 Mtexels/sec
GeForce GTX 460 1GB		37800 Mtexels/sec
	Difference: 11352 (30%)

Pixel Rate

The GeForce GTX 950 is a lot (approximately 52%) more effective at FSAA than the GeForce GTX 460 1GB, and should be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 950		32768 Mpixels/sec
GeForce GTX 460 1GB		21600 Mpixels/sec
	Difference: 11168 (52%)

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 (counted in megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better 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 are processed in one second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 ability to reach the maximum fill rate.