Summary
Especially in WQHD and full graphics card load, rBAR can score. Although the Ryzen 9 3900XT with Zen 2 now also gets this support along the way, the Ryzen 9 5900X benefits significantly more from the address register expansion. This also agrees with AMD’s statements that an implementation via firmware is possible (which has already been shown in the past), but that the native implementation in Zen3 has better performance. This is exactly the case here and it is very easy to understand that a native implementation can still bring significant advantages if the CPU is not already acting in bottleneck mode.
The case is a bit different for NVIDIA, where the implementation is rather useless, at least with the somewhat weak GeForce RTX 3060. Yes, you can see a slight increase, but you lose something in the smoothness, because the variances also increase slightly. So currently a GeForce RTX 3060 can’t really take advantage of rBAR On and it will be interesting to see what a bigger card will be able to do (or maybe not) down the road
Also interesting: Resizeable BAR with manual BIOS update for all RTX 3000 without hidden mining limits
Conclusion
AMD and Radeon? Yes, it fits! AMD and NVIDIA? No, it doesn’t fit (yet). There is an increase here, but it is rather homeopathic. I’m sure some rework will be needed there. It works better with Zen3 than with Zen2, that’s measurable too. Nevertheless, the Ryzen 3000 is also a clear beneficiary of the extended address register, which has to be left as it is. What else? Let’s wait for NVIDIA’s VBIOS updates on the graphics cards!
27 Antworten
Kommentar
Lade neue Kommentare
Mitglied
1
Mitglied
Mitglied
Urgestein
Urgestein
Urgestein
Urgestein
Veteran
Urgestein
Veteran
Urgestein
Urgestein
Urgestein
Mitglied
Neuling
Alle Kommentare lesen unter igor´sLAB Community →