GeForce 830M vs GeForce GTX 960M

Intro

Compare that to the GeForce GTX 960M, which uses a 28 nm design. nVidia has clocked the core speed at 1096 MHz. The GDDR5 memory is set to run at a frequency of 1000 MHz on this model. It features 640 SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
GeForce GTX 960M		65 Watts
	Difference: 40 Watts (160%)

Memory Bandwidth

The GeForce GTX 960M should in theory perform much faster than the GeForce 830M in general. (explain)

GeForce GTX 960M		64000 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 49600 (344%)

Texel Rate

The GeForce GTX 960M should be quite a bit (more or less 166%) more effective at AF than the GeForce 830M. (explain)

GeForce GTX 960M		43840 Mtexels/sec
GeForce 830M		16464 Mtexels/sec
	Difference: 27376 (166%)

Pixel Rate

The GeForce GTX 960M is a lot (about 113%) better at anti-aliasing than the GeForce 830M, and should be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 960M		17536 Mpixels/sec
GeForce 830M		8232 Mpixels/sec
	Difference: 9304 (113%)

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 information (counted in MB per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 amount of texture map elements (texels) that are applied per second. This is calculated by multiplying the total amount of texture units of the card 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.