GeForce GTX 950M vs Geforce GTX 780

Intro

Compare all of that to the Geforce GTX 780, which comes with a clock speed of 863 MHz and a GDDR5 memory frequency of 1502 MHz. It also makes use of a 384-bit memory bus, and makes use of a 28 nm design. It is comprised of 2304 SPUs, 192 TAUs, and 48 ROPs.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Geforce GTX 780		10082 points
GeForce GTX 950M		3330 points
	Difference: 6752 (203%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
Geforce GTX 780		250 Watts
	Difference: 195 Watts (355%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 780 should be much faster than the GeForce GTX 950M overall. (explain)

Geforce GTX 780		288384 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 256384 (801%)

Texel Rate

The Geforce GTX 780 should be quite a bit (approximately 353%) more effective at texture filtering than the GeForce GTX 950M. (explain)

Geforce GTX 780		165696 Mtexels/sec
GeForce GTX 950M		36560 Mtexels/sec
	Difference: 129136 (353%)

Pixel Rate

The Geforce GTX 780 will be quite a bit (more or less 183%) better at AA than the GeForce GTX 950M, and will be capable of handling higher screen resolutions better. (explain)

Geforce GTX 780		41424 Mpixels/sec
GeForce GTX 950M		14624 Mpixels/sec
	Difference: 26800 (183%)

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 maximum amount of information (measured in megabytes per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure 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 card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. 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 ability to get to the max fill rate.