GeForce GTX 275 vs GeForce GTX 950

Intro

Compare all that to the GeForce GTX 950, which uses a 28 nm design. nVidia has set the core frequency at 1024 MHz. The GDDR5 RAM runs at a speed of 1652 MHz on this model. It features 768 SPUs as well as 48 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

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

As far as performance goes, the GeForce GTX 275 should theoretically be a bit superior to the GeForce GTX 950 overall. (explain)

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

Texel Rate

The GeForce GTX 275 should be a small bit (approximately 3%) more effective at texture filtering than the GeForce GTX 950. (explain)

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

Pixel Rate

The GeForce GTX 950 should be much (approximately 85%) faster with regards to full screen anti-aliasing than the GeForce GTX 275, and also should be capable of handling higher resolutions better. (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 largest amount of information (measured in MB per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.