GeForce GTX 460 1GB vs GeForce GTX 950

Intro

Compare those specifications to the GeForce GTX 950, which has clock speeds of 1024 MHz on the GPU, and 1652 MHz on the 2048 MB of GDDR5 RAM. It features 768 SPUs as well as 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 460 1GB		160 Watts
	Difference: 70 Watts (78%)

Memory Bandwidth

The GeForce GTX 460 1GB should in theory be just a bit faster than 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 quite a bit (more or less 30%) faster with regards to 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 should be a lot (about 52%) better at FSAA than the GeForce GTX 460 1GB, and will 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 largest amount of data (counted in megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 applied in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the graphics 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 most pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.