This processor isn't able to increase its speed to 3.4GHz.
This processor isn't able to increase its speed to 3.4GHz.
This result seems normal for the processor you're using. When testing at full speed, only one core typically exceeds 3GHz.
Turbo boost operates as described. Core #4 and Core #6 received the full 3.4Ghz boost (3.397 ≈ 3.4). The BLCK typically runs between 99.6-99.7, not exactly 100, which slightly affects speed. It's likely they boosted different cores at different times—maybe the CPU selected a few cores for boost. You saw one core hit 3.2, another reached 3.1, and the rest around 2.8. This is completely normal.
You changed the encoding from 1080p to 720p using FF, and it seems the performance improved significantly—only 2798MHz was needed instead of the usual 3.4GHz. What’s the reason behind this adjustment?
I'm keen about x99 and E5 CPUs. I'll share a real-life scenario: turbo boost can be tricky, but checking the CPU Monkey site for your specific model (like E5-2640v3) will give you clearer info. Focus on the Core Count and Base Frequency—turbo boost mainly helps with light tasks such as browsing, loading webpages, saving files, or running small programs. In short, I need to grab lunch because it's Reddy time and I want the single core clock speed details. Thanks!
The maximum speed is 2.8 GHz for every core in turbo mode on this Xeon E5-2640 v3. For higher than 3 GHz with all cores active, you need a different model like the Xeon E5-2667 v3. If you have dual E5-2667 v3 units, they operate at 3.4 GHz in turbo mode, but ensure your motherboard supports the E5-2600 v4 series. The top choice is the Xeon E5-2689 v4, offering 10 cores at 3.7 GHz in turbo, though it requires robust cooling (165 W TDP).