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In case anyone was wondering.
Here are the (slightly surprising) results of our code to measure the clock speed on the new Ryzen CPUs.
The Ryzen CPU is more complex that past CPUs as it has an XFR feature (eXtended Frequency Range) feature that can lift the clock speed by a 100Mhz over the documented speeds. It is also effected by the Windows power policy in a way that other CPUs aren't. Further the BIOS options on our motherboard don't allow much flexibility for overclocking. So both the base speed and the turbo speed seem to be impacted.
These result below are for a Ryzen 7 1700X (which in theory has a 3.4Ghz base speed and a 3.8GHz Turbo speed).
Note that since doing these measurements AMD has said they will be doing a patch that will alter the Power Mode policy behaviour. We don't know what effect this will have.
Also strange is that XFR is disabled when overclocking is active. So at least in theory light overclocking on the Ryzen shouldn't gain much.
Here are the (slightly surprising) results of our code to measure the clock speed on the new Ryzen CPUs.
The Ryzen CPU is more complex that past CPUs as it has an XFR feature (eXtended Frequency Range) feature that can lift the clock speed by a 100Mhz over the documented speeds. It is also effected by the Windows power policy in a way that other CPUs aren't. Further the BIOS options on our motherboard don't allow much flexibility for overclocking. So both the base speed and the turbo speed seem to be impacted.
These result below are for a Ryzen 7 1700X (which in theory has a 3.4Ghz base speed and a 3.8GHz Turbo speed).
| PerformanceTest V9 Build 1013 | PerformanceTest V9 Build 1013 | |||
| Power Mode = High Performance | Power Mode = Balanced | |||
| Base Clock | Turbo Clock | Base Clock | Turbo Clock | |
| Over Clocking Disabled (Default) | 3115.1 | 3893.9 | 3394.8 | 3894.4 |
| 3394.1 | 3889.6 | 3394.5 | 3894.5 | |
| 3115.1 | 3894 | 3394.6 | 3894 | |
| 3115.1 | 3894.1 | 3394.7 | 3894.1 | |
| 3115 | 3894 | 3394.6 | 3894 | |
| Over Clocking Enabled P-state 0 = 3.7GHz |
3694.1 | 3694.2 | 3694 | 3694 |
| 3694.2 | 3694.2 | 3694.5 | 3694.5 | |
| 3694.2 | 3694.3 | 3694.3 | 3694.7 | |
| 3694.3 | 3694.1 | 3694.4 | 3694.8 | |
| 3694.4 | 3694.44 | 3694.4 | 3694.3 | |
| Over Clocking Enabled P-state 0 = 4GHz |
3993.7 | 3993.9 | 3994.1 | 3995.3 |
| 3993.6 | 3993.7 | 3994.3 | 3994 | |
| 3993.9 | 3993.8 | 3993.9 | 3994.3 | |
| 3993.8 | 3993.7 | 3994.1 | 3994.5 | |
| 3993.7 | 3994 | 3994.2 | 3994 | |
Note that since doing these measurements AMD has said they will be doing a patch that will alter the Power Mode policy behaviour. We don't know what effect this will have.
Also strange is that XFR is disabled when overclocking is active. So at least in theory light overclocking on the Ryzen shouldn't gain much.
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