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7900X equivalent 9900X has 120W TDP as opposed to 170W. Is it that much more power efficient?
by tripdout 2y ago
7900X equivalent 9900X has 120W TDP as opposed to 170W. Is it that much more power efficient?
- Voultapher 2y agoThat 170W TDP was chasing the benchmark crown. The 7950X lost <5% MT perf when run at 120W.
- canucker2016 2y agoThe all-core max clock speed costs a lot of watts for that last 10% - close to 50% of total CPU consumption in some cases. That's why undervolting has become a thing to do (unless you're an Intel CPU marketer) - give up a few percent of your all-core max clock rate and cut your wattage used by a lot.
- GordonS 2y agoI wonder then if the 9900X could be undervolted without losing more than a few percentage points of speed?