GeForce GT 230 vs GeForce GTX 950M

Intro

Compare all of that to the GeForce GTX 950M, which has a GPU core clock speed of 914 MHz, and 2048 MB of DDR3 RAM set to run at 1000 MHz through a 128-bit bus. It also features 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
GeForce GT 230		65 Watts
	Difference: 10 Watts (18%)

Memory Bandwidth

As far as performance goes, the GeForce GT 230 should in theory be a small bit superior to the GeForce GTX 950M in general. (explain)

GeForce GT 230		38400 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 6400 (20%)

Texel Rate

The GeForce GTX 950M is a lot (more or less 315%) better at AF than the GeForce GT 230. (explain)

GeForce GTX 950M		36560 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 27760 (315%)

Pixel Rate

The GeForce GTX 950M is quite a bit (more or less 232%) better at anti-aliasing than the GeForce GT 230, and also should be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 950M		14624 Mpixels/sec
GeForce GT 230		4400 Mpixels/sec
	Difference: 10224 (232%)

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 max amount of data (in units of megabytes per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few 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.