GeForce GTX 970M vs Geforce GTX 770

Intro

Compare those specifications to the Geforce GTX 770, which makes use of a 28 nm design. nVidia has clocked the core frequency at 1046 MHz. The GDDR5 memory works at a speed of 1753 MHz on this model. It features 1536 SPUs along with 128 TAUs and 32 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 770		7854 points
GeForce GTX 970M		7520 points
	Difference: 334 (4%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970M		75 Watts
Geforce GTX 770		230 Watts
	Difference: 155 Watts (207%)

Memory Bandwidth

Theoretically, the Geforce GTX 770 should be much faster than the GeForce GTX 970M in general. (explain)

Geforce GTX 770		224384 MB/sec
GeForce GTX 970M		96000 MB/sec
	Difference: 128384 (134%)

Texel Rate

The Geforce GTX 770 will be quite a bit (more or less 81%) better at AF than the GeForce GTX 970M. (explain)

Geforce GTX 770		133888 Mtexels/sec
GeForce GTX 970M		73920 Mtexels/sec
	Difference: 59968 (81%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 970M is superior to the Geforce GTX 770, by a large margin. (explain)

GeForce GTX 970M		44352 Mpixels/sec
Geforce GTX 770		33472 Mpixels/sec
	Difference: 10880 (33%)

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 largest amount of information (measured in MB per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its 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 core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.