MSI N770 Lightning
The GTX 770 Lightning is more interesting, as it's in fact a new version of the GTX 680 Lightning, but with the GTX 770 and the new memory chips. Click here for our review of the MSI GTX 680 Lightning. The PCB was completely redesigned for that card with overclockers in mind.
The Lightning runs at 1150 MHz with a 1202 MHz Boost clock, faster than the other cards. The GDDR5 memory is the same at 1,753 MHz. The PCB of the card has more phases for the GPU (eight) and the memory (three). MSI used 'Military Class' components, which are supposed to be high-quality capacitors, spools and other components. The positioning of the components has been done in such a way to make it as easy as possible to use LN2 cooling with the card.
The Lightning also has two 8-pin PEG connectors which can supply 300 watts. The card also has measuring points for the voltages of the GPU, memory and PWM. There are even plugs you can connect the pens from your multimeter. We also have to mention the switch for changing between the normal BIOS and the LN2 BIOS, in which all limitations for power usage and so on are disabled.
On the back of the GTX 680 Lightning there's the GPU Reactor, a small extra PCB with extra capacitors that further optimize the GPU power supply. Like with the Radeon HD 7970 Lightning, we're still of the opinion that it's more of a marketing gimmick than something that has added value.
The cooler is from the Twin Frozr IV generation and has two large fans with five 5 heatpipes, two of which are 8 mm. The black and yellow color scheme matches MSI's MPower motherboards. When the card first turns on, the fans blow in reverse to get rid of dust.
Due to the higher clock frequencies this card is one of the faster ones in the test. The cooler also works really well, keeping the temperature at 54 degrees after two runs of Metro 2033, and the noise at 44.1 dB(A) which is quieter than the other cards.
The Lightning card is more expensive than the Twin Frozr, with a recommended price of € 435.