The Palit card has 1 gigabyte of GDDR5 memory in FCFBGA chips located on the face side of the PCB.
These K4G10325FE-HC04 chips are manufactured by Samsung. They have a fetch time of 0.4 nanoseconds and a rated frequency of 5000 MHz. The graphics card’s memory frequency is 4200 MHz, which leaves some room for overclocking. It is lowered to 270 MHz in 2D mode for power-saving reasons. The memory bus is 256 bits wide.
Here is what the GPU-Z utility reports about this Palit card:
The cooler of the Palit GeForce GTX 560 Sonic Platinum consists of two components: a plastic casing with fan and an aluminum heatsink.
The heatsink is very compact. Two 6mm copper heat pipes are soldered to its copper base. A number of slim aluminum fins are put on the pipes.
Thick, gray-colored thermal grease is used as thermal interface for the GPU. There are no heatsinks on the memory chips.
The cooler’s heatsink and the PCB elements are cooled with an 80mm 11-blade impeller from Power Logic.
Running on a sleeve bearing, this PLA08015S12HH fan can vary its speed from 1100 to 4000 RPM. Its peak power consumption is 4.2 watts.
To check out how hot the graphics card is, we ran the benchmark from Aliens vs. Predator (2010) in five cycles with maximum graphics quality settings at 1920x1080 with 16x AF and without FSAA (the GPU was the hottest at such settings). There was also a second test: FurMark 1.9.0 running at 1920x1080. MSI Afterburner 2.2.0 Beta 3 and GPU-Z version 0.5.3 were used as monitoring tools. The temperature tests were carried out in a closed system case at an ambient temperature of 25°C.
Let’s see how hot the Palit GeForce GTX 560 Sonic Platinum is with its fan being controlled automatically (left) or working at its maximum speed (right).
So, the GPU was as hot as 81°C in the automatic mode of the fan. This seems to be high for a mainstream graphics card, but the fan speed is only 2400 RPM. This is not quiet, but comfortable enough. With the fan working at its maximum 3600 RPM, the GPU is 16°C colder than in the automatic mode, but the card gets very noisy.
FurMark heated the Palit GeForce GTX 560 Sonic Platinum up more than Aliens vs. Predator (2010) did, of course. The GPU temperature was as high as 86°C at a fan speed of 3300 RPM.
It must be acknowledged that such loads are unrealistic, so the cooling system of the Palit GeForce GTX 560 Sonic Platinum copes with its job just fine, despite its compactness and the card’s pre-overclocked frequencies.
The GPU of our sample of the card proved to have some reserve of frequency. It could be overclocked to 960 MHz.
Although the memory chips could be overclocked from 4200 to 4760 MHz, we wouldn’t call that a success. We had expected more from Samsung’s chips rated for 5000 MHz.
When overclocked, the card’s GPU temperature grew up by 1°C and the maximum speed of the fan increased by a mere 120 RPM.