GeForce GTX 285 2GB vs GeForce GTX 950

Intro

Compare those specifications to the GeForce GTX 950, which has a core clock speed of 1024 MHz and a GDDR5 memory speed of 1652 MHz. It also features 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 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950		90 Watts
GeForce GTX 285 2GB		204 Watts
	Difference: 114 Watts (127%)

Memory Bandwidth

The GeForce GTX 285 2GB, in theory, should be much faster than the GeForce GTX 950 in general. (explain)

GeForce GTX 285 2GB		158976 MB/sec
GeForce GTX 950		105728 MB/sec
	Difference: 53248 (50%)

Texel Rate

The GeForce GTX 285 2GB should be a bit (more or less 5%) more effective at anisotropic filtering than the GeForce GTX 950. (explain)

GeForce GTX 285 2GB		51840 Mtexels/sec
GeForce GTX 950		49152 Mtexels/sec
	Difference: 2688 (5%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 950 is a better choice, by a large margin. (explain)

GeForce GTX 950		32768 Mpixels/sec
GeForce GTX 285 2GB		20736 Mpixels/sec
	Difference: 12032 (58%)

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 maximum amount of data (in units of megabytes per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the 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 maximum number of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.