This means the “hot spot” nature of Intel’s 3D transistor design doesn’t become a significant thermal roadblock like it did in mainstream Ivy Bridge and Haswell chips. Simply put, 22nm processors don’t seem to have all that much headroom….or do they?Īs we’ve seen with Ivy Bridge-E, temperatures are kept to a minimum through the use of a revised IHS design which effectively disperses heat over a large surface area. Neither of those represents a particularly good result considering the 4.8GHz to 5GHz speeds we’d seen on previous architectures. The Haswell i7-4770K hit a wall at 4.5GHz while even the 4960X –which is supposedly tailor-made for overclockers- edged it out at a mere 4.55GHz. Overclocking Intel’s latest processors hasn’t been an easy task from our end. Thus we use a Tripp-Lite 1800W line conditioner between the 120V outlet and the power meter. Please note that after extensive testing, we have found that simply plugging in a power meter to a wall outlet or UPS will NOT give you accurate power consumption numbers due to slight changes in the input voltage. After this, WPrime 1024M is looped for 15 minutes while the power consumption is logged with a calibrated power meter to determine the peak watts. The latter will only be included if a given processor includes a dedicated internal graphics sub-processor.įor the CPU power consumption test, we use the standard testing system (with an NVIDIA GTX 670 installed) and wait until the system and discrete GPU are at idle speeds in order to log the idle power consumption. Our power consumption numbers are broken down into two categories: one which simply stresses all of the CPU cores with WPrime and another which puts a high amount of load on both the CPU cores and the IGP. System Power Consumption / Temperature Testing
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