Benchmarks: Power Consumption
| Intel Core i7-4770K Efficiency Gain/Loss |
Intel Core i7-3770K | Intel Core i7-2700K | AMD A10-5800K |
|---|---|---|---|
| + 65.2% | + 60.9% | + 8.7% |
The change in socket makes it difficult to directly compare power consumption; the previous-generation processors are attached to a Gigabyte Z77X-UD5H, while the Core i7-4770K is plugged into a Gigabyte Z87-D3PH.
Nonetheless, the Haswell platform as a whole is proving to be suitably efficient. The entire PC draws just 23 watts when idle.
| Intel Core i7-4770K Efficiency Gain/Loss |
Intel Core i7-3770K | Intel Core i7-2700K | AMD A10-5800K |
|---|---|---|---|
| + 17.1% | + 44.7% | + 15.8% |
Power-draw under load is impressive, too. With the CPU running flat-out, the entire PC draws no more than 76 watts. And remember, this is one of the hungriest Haswell processors in production.
| Intel Core i7-4770K Efficiency Gain/Loss |
Intel Core i7-3770K | Intel Core i7-2700K | AMD A10-5800K |
|---|---|---|---|
| + 16.1% | + 57.1% | + 105.4% |
The IGP, while significantly superior in terms of performance, also happens to be noticeably more efficient. When playing DiRT Showdown, the Core i7-4770K system provided to be 16 per cent more power efficient than Core i7-3770K, and 57 per cent more efficient the Core i7-2700K. This statistic is more impressive when you consider that the latter two, despite their higher power draw, were unable to deliver smooth framerates.
