GeForce GTX 780 Ti vs GeForce GTX 970M

Intro

Compare those specifications to the GeForce GTX 970M, which has a clock frequency of 924 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 192-bit bus, and uses a 28 nm design. It features 1280 SPUs, 80 Texture Address Units, and 48 Raster Operation Units.

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 Ti		10900 points
GeForce GTX 970M		7520 points
	Difference: 3380 (45%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970M		75 Watts
GeForce GTX 780 Ti		250 Watts
	Difference: 175 Watts (233%)

Memory Bandwidth

The GeForce GTX 780 Ti should theoretically be a lot faster than the GeForce GTX 970M in general. (explain)

GeForce GTX 780 Ti		336000 MB/sec
GeForce GTX 970M		96000 MB/sec
	Difference: 240000 (250%)

Texel Rate

The GeForce GTX 780 Ti is much (more or less 184%) more effective at anisotropic filtering than the GeForce GTX 970M. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
GeForce GTX 970M		73920 Mtexels/sec
	Difference: 136080 (184%)

Pixel Rate

The GeForce GTX 970M is just a bit (more or less 6%) more effective at FSAA than the GeForce GTX 780 Ti, and also will be capable of handling higher screen resolutions better. (explain)

GeForce GTX 970M		44352 Mpixels/sec
GeForce GTX 780 Ti		42000 Mpixels/sec
	Difference: 2352 (6%)

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 max amount of data (measured in megabytes per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is worked out 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 video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka 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 potential to get to the max fill rate.