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[Official] AMD R9 390/390X Owners Club - Page 643

post #6421 of 11900
Quote:
Originally Posted by navjack27 View Post

maybe its an unstable memory overclock giving too many memory corrections. i had that when i was running catzilla benchmark last night
should i lower the mem?
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post #6422 of 11900
if you arent running at a strap memory speed then yeah.

1750
1625
1500
1375
1250
1125
1000
900
800
400

those are the memory strap top ends for a 390x i just assume its the same for a 390.
post #6423 of 11900
i can undervolt my gpu to -100mV with stock speed with the same performance without undervolting... i can OC the core up to 1120/1600 without voltage adjustment...but up to that clock i cant OCing even with increasing the mV...i just wonder why.


post #6424 of 11900
You must be mistaken on that, or there's some setting that is off. Clock should scale smoothly with voltage.

The actual scaling is not that good - about 100 mhz per 200 mV on my chip.

I too can run 1035 mhz at 1225-100=1125 mV.
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post #6425 of 11900
do u mean that undervolt -100mv 1040 core clock performance (using heaven as benchmark) should less than 0mv 1040 core clock ?since i tested it using heaven and the witcher 3 and dont see any loss or gain in performance while undervolt or not (only temparature drop around 5~10C if undervolt).
post #6426 of 11900
Hey everyone,

1. I have read in many reviews of 390, that with the proper overclocking, it can produce fps results like 390x - Is that something that you have seen till now or it's lets say a exaggeration?

2. I plan to buy 390, (either Sapphire or MSI), especially for 1440p gaming. I am bit concerned that Amd drivers aren't so optiomised like Nvidia (or werent before Radeon Crimson was released).

Thnx in advance for any possible reply
post #6427 of 11900
Quote:
Originally Posted by lanc3lot View Post

Hey everyone,

1. I have read in many reviews of 390, that with the proper overclocking, it can produce fps results like 390x - Is that something that you have seen till now or it's lets say a exaggeration?

2. I plan to buy 390, (either Sapphire or MSI), especially for 1440p gaming. I am bit concerned that Amd drivers aren't so optiomised like Nvidia (or werent before Radeon Crimson was released).

Thnx in advance for any possible reply

When both are running at the same clockspeed, the 390x is 5-10% faster than the 390, so they are pretty close anyway. More so with overclocking. It's not an exaggeration, but it's also not something you should obsess over either.

AMD's drivers have honestly been fine (more than fine) for the most part the last few years. The only "issue" I know of is that Crossfire profiles take a while to come out for some games, but you're gonna be running a single card so it won't be a problem. Don't worry about the drivers.
post #6428 of 11900
Yeah, this driver nonsense about AMD/ATI is from the past, a LONG time ago and somehow people still bring it up for some reason.
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post #6429 of 11900
Quote:
Originally Posted by Stige View Post

Yeah, this driver nonsense about AMD/ATI is from the past, a LONG time ago and somehow people still bring it up for some reason.

I know, right? These past few years I've had more trouble with NVidia drivers than AMD drivers, and I've had next to no issues with NVidia as well. The only "problem" I've encountered with an AMD driver in recent memory is when I was trying to install Windows 8.1 on my old laptop with a Mobility Radeon HD4650 in it and it would cause it to black screen and never work again. Installing some modded older driver did the trick, though.
post #6430 of 11900
Quote:
Originally Posted by Stige View Post

Yeah, this driver nonsense about AMD/ATI is from the past, a LONG time ago and somehow people still bring it up for some reason.

I haven't got any Ati/Amd card in my rig. I always had Nvidia, now i am with an GTX580 and i am find it very hard to play the games the way i like, especially in 1440p. So in the research i have done to choose my next card, the most common thing i was reading in various forums, was that AMD have a problem with drivers and that their drivers are not so often released like Nvidia where it releases on the day of the release of each major game. So for this i asked here.
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