Overclocking and temps
Raising the under-load voltage to 1.9V we pushed the modules at varying latencies.| Memory | Corsair 4GB DDR3-1,600MHz | G.Skill 2GB DDR3-1,600MHz | Crucial 2GB DDR3-2,000MHz |
|---|---|---|---|
| Max speed at 9-9-9-28 2T @ 1.9V | 1,828MHz | 2,012MHz | 2,020MHz |
| Max speed at 8-8-8-24 2T @ 1.9V | 1,846MHz | 1,975MHz | 1,878MHz |
| Max speed at 7-7-7-20 1T @ 1.9V | 1,600MHz | 1,745MHz | 1,659MHz |
We defined stable speeds as running a 10-minute Prime95 torture test without failure.
The Corsair pack actually scaled better with lower (performance-enhancing) latencies, strangely, topping out at 1,846MHz with 8-8-8-24 2T timings.
We're not surprised that the Corsair's frequencies are bested by the Crucial 2GB set, but G.Skill must be using some tasty chips on its modules; they scale rather well.
Temperatures
| Memory | Corsair 4GB DDR3-1,600MHz | G.Skill 2GB DDR3-1,600MHz | Crucial 2GB DDR3-2,000MHz |
|---|---|---|---|
| Ambient temperature | 24°C | 22°C | 23.5°C |
| Temp after 30m test | 40.5°C | 36°C | 39°C |
| Ambient-to-load delta | 16.5°C | 14°C | 15.5°C |
Temperatures were measured after a 30-minute stability test.
Surprisingly, or perhaps not, the DHX heatspreaders were the warmest. We take this to mean that they're doing their job in transferring heat away from the ICs underneath.