RX480 8gb NITRO+ OVERCLOCK
RX480 8gb NITRO+ OVERCLOCK
Hi everyone,
I'm trying to overclock my RX 480 8GB Sapphire Nitro+ OC edition and was seeking some helpful tips.
Right now I've pushed the power limit to its maximum, increased the core voltage by 12mV, and reached a stable 1380 MHz (up from the factory 1342 MHz). The fans are at 85%, which keeps temperatures around 65-67°C.
When I attempt to go to 1390 MHz, the system crashes with Wattman due to failure, and an error appeared when trying to raise the core clock without adding more voltage.
Interesting is that MSI Afterburner doesn't let me increase the core clock further, unlike with my previous GTX 960 4GB MSI Tiger OC. The memory clock remains unchanged.
System details:
- Intel Core i5-3570K @3.4GHz
- AMD Radeon RX 480 Sapphire Nitro+ OC 8GB Edition
- 16 GB DDR3 RAM @1333MHz
- PSU 600W CoolerMaster (product name fuzzy)
Appreciate any advice you can offer!
When you fully set the voltage/power controls on MSI after the burner, you're hitting the maximum possible output—12mV and 1380MHz core. That suggests the system is reaching its limits. If you can't change the voltage at all in the afterburner, you'll need to adjust settings and enable overvolting. For the RX 480, a 1380MHz core is a solid overclock. I'm planning to try boosting the memory next.
Each chip is unique, so I don't believe adding trixx will boost the overclock, though you might give it a shot.
I tried with trixx but it still caps overvoltage at +12 mVs. I achieved 1395mhz on the core clock and 2070mhz on the VRAM clock. After roughly an hour of benchmarking (Unigine Heaven) and gaming (Assassin's Creed Syndicate high-ultra with MSAA 2x + fxaa), I experienced one crash. It wasn't a Wattman stop or system failure, but a common appcrash involving both the game and AMD Radeon settings (Crimson Software). No unusual pixels appeared on screen, and everything seemed normal. In fact, I believe it’s not worth it since it only adds about 2 fps on average. The Heaven benchmark showed a score of 1420 from 1335 stock speeds. Should I try this setup more to see if the crash stems from too much overclocking, or can I adjust it up to 1400 mhz and test?
I usually lower my overclock a bit. For instance, if it's stable at 1395, I'd go down to at least 1385. You won't really notice any difference while gaming. I wouldn't push it further because I don't think you'll see any games running your GPU at its limits is the best approach, and it could become unstable over time due to wear.
the truth is that it scored lower on 1390 mhz compared to 1385 mhz, while the 1395mhz setting showed a much stronger result. unigine heaven recorded 1335 at standard speeds, 1390 at 1385mhz, 1384/85 at 1390mhz and 1420 at 1395mhz (repeated four times for confirmation). do you believe the crash was caused by the overclock? because during other crashes it happened just a few minutes after benchmarking or gaming, with the warning "wattman settings have resetted due to system failure", and this time I experienced two normal app crashes (ACS.exe and amd radeon software stopped working) after about an hour while actively overclocking at 1395mhz and 2070mhz...