Limited VRAM buffer space with RX 480 8GB Asus Strix O8G Gaming
Limited VRAM buffer space with RX 480 8GB Asus Strix O8G Gaming
I worked on a stable maximum overclock for several days. On the core, I reached 1440MHz steady with full power limits, and 1463MHz at a 1.2125v boost. However, RAM overclocks often trigger errors in HWiNFO64 above 2024MHz, even at the stock speed of 1310MHz. Many threads and videos show successful speeds from 2175 to 2200 MHz. I’m thrilled with the core performance but concerned about VRAM longevity due to limited headroom.
AMD’s WattMan continues to offer detailed management of the RX 480’s internal memory, allowing adjustments such as increasing the voltage by up to 150 mVs and boosting clock speeds from 2,000MHz to 2,250MHz. We successfully achieved a stable overclock reaching 2,200MHz or a 10 percent boost after manually setting the voltage to 1,150 mV.
I’ve been testing a stable maximum overclock for the past few days. On the core, I can reach 1440MHz steady with just the power limit, and up to 1463MHz at a 1.2125v boost. But when trying to push the RAM, HWiNFO64 flags errors above 2024MHz, even at the stock 1310MHz speed. I’ve seen many threads and videos showing people hitting 2175-2200 MHz RAM speeds. I’m thrilled about the core performance but concerned about the VRAM’s long-term health. Should I worry about the limited headroom?
It might be an RX 480, though it's not a GTX 1080. The GTX 1080 begins at 2500/5000/10000 based on the model you check.
I haven't seen any crash codes appear. When I push it beyond 2075MHz during gaming or idling, I experience sudden artifacts or my screen turns into a uniform color, requiring a restart. HWiNFO64 tracks GPU memory issues and starts showing errors at 2024MHz.
These issues appear in Event Viewer, indicating hardware faults. The memory is running at 2200mhz and 1100mv. It seems the system needs more power. I notice several cases where memory boosts without higher voltage, leading to immediate complications.
Those errors should appear in Event Viewer; they are hardware issues after all.
Memory @2200mhz, @1100mv
I believe you should boost the power. I notice several posts where memory improves without higher voltage and causes immediate problems.
Unfortunately, there’s no known way to raise the voltage of the VRAM on this card. You can adjust core voltage and memory controller settings, but not the actual VRAM. I’ve tried overvolting and undervolting the controller, yet error readings persist at 2024MHz. I’ll check the event viewer later tonight.
Those issues should appear in Event Viewer, indicating hardware faults. The memory is running at 2200mhz and 1100mv. I believe you should boost the power settings. I notice several instances where memory performance improves without higher voltage, which often causes problems. There doesn’t seem to be a known method to raise the voltage of the VRAM on this card. You could try adjusting core voltage and memory controller settings, but not the actual VRAM. I’ve experimented with overvolting and undervolting the controller, yet error readings persist at 2024MHz. I plan to check Event Viewer later tonight.
You’re free to use the OC tool from your card manufacturer’s support.
Additionally, you might consider using tools from other manufacturers such as XFX, EVGA, MSI, etc., which may offer more adjustment options.