GeForce GTX 275 vs GeForce GTX 950

Intro

Compare those specs to the GeForce GTX 950, which makes use of a 28 nm design. nVidia has set the core frequency at 1024 MHz. The GDDR5 memory runs at a frequency of 1652 MHz on this particular model. It features 768 SPUs as well as 48 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950		90 Watts
GeForce GTX 275		219 Watts
	Difference: 129 Watts (143%)

Memory Bandwidth

Theoretically, the GeForce GTX 275 should be a bit faster than the GeForce GTX 950 in general. (explain)

GeForce GTX 275		127008 MB/sec
GeForce GTX 950		105728 MB/sec
	Difference: 21280 (20%)

Texel Rate

The GeForce GTX 275 should be just a bit (approximately 3%) faster with regards to AF than the GeForce GTX 950. (explain)

GeForce GTX 275		50640 Mtexels/sec
GeForce GTX 950		49152 Mtexels/sec
	Difference: 1488 (3%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 950 is superior to the GeForce GTX 275, by far. (explain)

GeForce GTX 950		32768 Mpixels/sec
GeForce GTX 275		17724 Mpixels/sec
	Difference: 15044 (85%)

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 maximum amount of data (measured in megabytes per second) that can be moved past the external memory interface in one second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 can be applied per second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the video 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 maximum amount of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. 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 rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.