GeForce GTX 285 1GB vs GeForce GTX 950

Intro

Compare all of that to the GeForce GTX 950, which comes with core 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 Texture Address Units 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 285 1GB		204 Watts
	Difference: 114 Watts (127%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 285 1GB should theoretically be a lot better than the GeForce GTX 950 overall. (explain)

GeForce GTX 285 1GB		158976 MB/sec
GeForce GTX 950		105728 MB/sec
	Difference: 53248 (50%)

Texel Rate

The GeForce GTX 285 1GB is a small bit (approximately 5%) better at AF than the GeForce GTX 950. (explain)

GeForce GTX 285 1GB		51840 Mtexels/sec
GeForce GTX 950		49152 Mtexels/sec
	Difference: 2688 (5%)

Pixel Rate

The GeForce GTX 950 should be much (about 58%) faster with regards to FSAA than the GeForce GTX 285 1GB, and also should be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 950		32768 Mpixels/sec
GeForce GTX 285 1GB		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 (measured in megabytes per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the 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 applied per second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core 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 lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.