The other day AMD released its Ryzen 7000 non-X processors at lower price tags (and TDPs) compared to the earlier launched X series CPUs. Despite what marketing may have you believe, there’s almost no difference between the X and non-X variants. Out of the box, the latter feature slightly lower boost clocks and a TDP of 65W, but that can be changed in a single click.
As shown in the above shot, MSI and other motherboard vendors allow you to change the TDP and power limit on the non-X chips as well. Upon setting the TDP to 170W (same as the X series SKUs) and enabling Precision Boost Overdrive, we see the Ryzen 9 7900 gain a performance boost of 15%. The resulting Cinebench numbers put it squarely on par with the 7900X.
We see similar behavior from the Ryzen 7 7700. Although it ends up slightly slower than the 7700X in the multi-threaded segment, the difference is negligible and will vary from sample to sample. It’ll be interesting to see if these chips draw more power than their X variants in a given workload, as they’re lower-binned.
| Model | Cores/Threads | Boost/Base Frequency | Total Cache | TDP | Cooler | SEP (USD) |
| AMD Ryzen 9 7900 | 12C/24T | Up to 5.4 GHz / 3.7 GHz | 76MB | 65W | Wraith Prism | $429 |
| AMD Ryzen 7 7700 | 8C/16T | Up to 5.3 GHz / 3.8 GHz | 40MB | 65W | Wraith Prism | $329 |
| AMD Ryzen 5 7600 | 6C/12T | Up to 5.1 GHz / 3.8 GHz | 38MB | 65W | Wraith Stealth | $229 |
Source:
Config TDP – Quick way to overclock 65W Ryzen 7900/7700 with PBO?
7700/7900 Cinebench R23 MT performance with Config TDP 95W/105W/125W/170W:
7900: 13% faster with 170W Config TDP. 9% faster with 95W.
7700: 3% faster with 170W.
(MB: MSI B650 Carbon WiFi, BIOS 110, AGESA 1.0.0.3)Originally tweeted by chi11eddog (@g01d3nm4ng0) on January 6, 2023.
