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AMD Ryzen Threadripper 2990WX and 2950X Review (Page 8)

By Steven Bassiri from Aug 13, 2018 @ 8:00 CDT
TweakTown Rating: 93%Manufacturer: AMD

CPU Overclocking




You can overclock through AMD's Ryzen Master or through the motherboard's UEFI. The new Ryzen Master offers per core overclocking, ranking of best cores (gold star, silver star, silver circle) in each CCX, and the ability to see the PPT, TDC, and EDC ratings we discussed earlier. You can also disable half the CCX, or even three of them, which will give you more localized memory access. Game Mode is basically the ¼ CCX setting, and it will improve your gaming performance.




We didn't overclock the 2990WX as we felt the Precision Boost Overdrive (PBOD) did its job exceedingly well, but we also didn't want to trip our power breaker, as we were seeing peak instant power draw of over 850W pulled from the wall during our CINEBENCH test with PBOD. We did go ahead and try and overclock the 2950X, and we found that it could overclock all cores to 4.2GHz with ease on the Wraith Ripper, although temperatures were a bit high.



It could also do 4.3GHz, but only with enough stability for CINEBENCH, we would need better cooling for higher clocks. We can see people getting 4.3GHz or more on all cores with the CPU and better cooling. The Wraith Ripper cooler is rated 250W, but with the 2950X, we were seeing over 300W power draw with our overclock, so an AIO water cooler can do better.




We wanted to share a shot from GIGABYTE, they did some LN2 overclocking with their new motherboard and the 2990WX, and they hit over 8500 points in CINEBENCH, which is just INSANE.


Power Consumption




That's a lot of power being drawn, and keep in mind that when we increase power draw, the efficiency of the VRM on the motherboard also goes down, compounding on the watts drawn through the two 8-pin power connectors. Keep in mind the 2990WX is 32 cores, which is a ton of cores, and PBOD is part of AMD's included technologies and isn't manual overclocking.

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