GeForce GTX 460 2GB vs GeForce GTX 950

Intro

Compare those specs to the GeForce GTX 950, which features a clock frequency of 1024 MHz and a GDDR5 memory speed of 1652 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It 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 2GB		160 Watts
	Difference: 70 Watts (78%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 460 2GB should in theory be a bit superior to the GeForce GTX 950 in general. (explain)

GeForce GTX 460 2GB		115200 MB/sec
GeForce GTX 950		105728 MB/sec
	Difference: 9472 (9%)

Texel Rate

The GeForce GTX 950 will be much (about 30%) better at texture filtering than the GeForce GTX 460 2GB. (explain)

GeForce GTX 950		49152 Mtexels/sec
GeForce GTX 460 2GB		37800 Mtexels/sec
	Difference: 11352 (30%)

Pixel Rate

The GeForce GTX 950 should be much (about 52%) better at full screen anti-aliasing than the GeForce GTX 460 2GB, and also will be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 950		32768 Mpixels/sec
GeForce GTX 460 2GB		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: Bandwidth is the max amount of information (measured in MB per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR memory, it should 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 AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out 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 outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.