Temperature, Noise and Overclockability
So, we’ve got three original GeForce GTX 570 cards each of which has some special feature. It’s time to check out which one is better in practical terms, particularly in terms of noisiness and temperature. We’ve got the following results in 2D and 3D modes at an ambient temperature of 23 to 25°C:
We can see one loser right away. It is the Palit GeForce GTX 570 Sonic Platinum which has the highest factory frequencies and GPU voltage in 3D mode. As a result, the graphics card is as hot as the GeForce GTX 580 when running heavy applications, and it also has the worst idle-mode result among the tested cards.
The ASUS ENGTX570 DCII and Gigabyte GV-N570OC-13I both boast high cooling efficiency. The ASUS is 2°C better in 3D mode but the thick metallization layers in the Gigabyte’s PCB help it to be as cool as 33°C in idle mode. Do not forget that the Gigabyte is a dual-slot card whereas the ENGTX570 DCII has a bulkier triple-slot cooler. Now what about their noisiness?
At an ambient temperature of 38 dBA our digital noise-level meter Velleman DVM1326 reported the following:
The Palit GeForce GTX 570 Sonic Platinum is the noisiest card of the three, which is the natural consequence of its high heat dissipation. We must admit that its noise is not irritating subjectively, yet it is going to be audible in 3D applications even if the rest of the computer components are not quiet.
The ASUS card comes out the winner in its duel with the Gigabyte thanks to its large heatsink and two 92mm fans. On the other hand, the difference between the ENGTX570 DCII and GV-N570OC-13I can hardly be perceived by the ear at a distance of 1 meter from the computer. Both are very, very quiet. It means that the Gigabyte GV-N570OC-13I may be a preferable solution, especially if your system case cannot accommodate the triple-slot ASUS. Moreover, one fan of our sample of the ASUS ENGTX570 DCII was brushing against the cooler casing, producing an irritating sound. We corrected this defect in a couple of minutes, yet it spoiled our impression from the product somewhat.
Here is the behavior of the graphics cards’ fans during this test:
- Asus ENGTX570 DCII : 1200 – 1450 RPM
- Gigabyte GV-N570OC-13I: 1700 – 2400 RPM
- Palit GeForce GTX 570 Sonic Platinum: 1100 – 3400 RPM
The Palit’s fans are as fast as 3500 RPM under load, but the cooler barely copes with its job. That’s the consequence of the too high GPU voltage.
And the last test is about overclocking. Let’s see which card has the highest overclocking potential.
ASUS ENGTX570 DCII
Palit GeForce GTX 570
The Gigabyte GV-N570OC-13I wins this test, reaching GPU clock rates of 900/1800 MHz, which should help it to be as fast as a GeForce GTX 580. The Palit GeForce GTX 570 Sonic Platinum is second, but could not get higher than 850/1700 MHz in GPU frequency despite its 1.12V voltage. We should note that such experiments may be dangerous considering the high heat dissipation of this card.
The ASUS ENGTX570 DCII is quite a disappointment as we couldn’t reach even 800/1600 MHz of GPU frequency with it. Its memory frequency is higher than the Gigabyte’s, but this is still an unlucky day for ASUS.
The Gigabyte GV-N570OC-13I seems to be the best product in terms of the properties we’ve tested in this section of our review. Let’s now see how the three GeForce GTX 570s will perform in games and benchmarks.