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Yeah, my first Saphire nitro+ 6900 XT would have GPU temps at 70-75° with a hotspot running 105 to 110°. This was at +15 in the Radeon software without touching the power limit, so it was hitting 303 W and it was running fine, except that it was replaced because an RGB header pin broke off. I got my replacement card last week, before leaving for a trip, so I should be able to install it tomorrow.
You are using an XTX card.My CPU overclock got removed somehow during my change back to 6900XT and removing and installing drivers. I fixed that and my CPU score is back up. I bumped my VRAM setting from 2112 to 2124 MHz and got an average of 2112 Mhz in a new Time Spy run, which is up from 2100 average when I had it set for 2112. My previous card VRAM would not go past 2088 or 2100 MHz after the first couple of weeks of ownership.
Didn't touch anything else or fans, and my Time Spy GPU SCORE PASSED 22K FOR THE FIRST TIME at 22,036 (19,362 total with a 5800X at 11,473). Average core clock was slightly less at 2379 MHz but the faster RAM clock brought the score up anyway.
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I went back and increased my GPU fans and case fans a tiny bit (like 5% more above 65C), and I bumped VRAM clock settings to 2136 MHz. My new Sapphire averaged an actual 2124 Mhz VRAM clock during it's best Time Spy GPU score so far of 22,096. The GPU core clock average was back up to 2394 MHz average, and average GPU temperature came down to 74 degrees C. I didn't run the overlay to look at hot spot temps this time.
On this same 5800X based PC, my previous Sapphire 6900XT was averaging 21,500-21,600 GPU score at best with core clocks around 2325-2330 Mhz, while it scored slightly higher on the 5950X rig at 21,800. But the last cards VRAM didn't want to clock at much over 2100 MHz.
I could keep bumping up the VRAM clock, but my understanding is that this is about as fast as it will usually run, and going faster may result in either too much heat or errors leading to lower scores. The only reason I wanted to OC the card this fast was for either bragging rights or to improve RT performance, and I'm not using RT much. And with my 5800X and 1440p @ 165Hz monitor, it's as fast as it ever needs to be - the OC was just to see what it could do.
I was happy to break into the 22K Time Spy scores with an air cooled card, and I believe that my old card would have never broken that milestone. So, my fears of Sapphire sending me a slower card were unfounded, and I think I got lucky in the silicone lottery without going to an XTX or XTXH based card.
As an NVIDIA user and possibly looking to sell my 3080 for a 6900XT, ray tracing isnt that cool of a thing. If anything the closest ive gotten to using it is just to see what its like.nice a topic where i might not find ray tracing nvidia simps lmao feel right at home!!!
Solid choice.Cheers guys and thanks Matt,
Think I'll go with the Sapphire then.
Now to decide on AlderLake or Ryzen, further reading required.
You are using an XTX card.
Glad you got a better sample, to be fair I called it a while back if you remember.
Yes, that's because you've hit the power limit of the GPU (303W, so increases in clock speed will hurt more than help. You'd need MPT to increase the power limit to see gains from hereon in.Oh, I thought XTX cards came out later in the summer and were faster, but I googled it. https://www.tomshardware.com/news/r...tedly-in-the-works-to-crush-ge-force-rtx-3090 from August 30, 2021 says the 6900 XT uses the Navi 21 XTX chip, and the 6900 XTX will use the Navi 21 XTXH chip.
I do remember your reassurance though, and you were right. BTW, I just tried increasing max GPU clock settings in Radeon software to 2596, up from 2564 which had resulted in average clock speeds in the benchmark at 2394 Mhz. Time Spy got a lot slower despite clock speeds climbing to an average of 2429 MHz. VRAM stayed at an average of 2124 Mhz, and temps stayed at 75 degrees. The GPU score dropped to 21,417 so I went back to my previous saved settings.
Returning my MSI, it was hitting 100c last night and thats with an undervolt. Have ordered the Powercolor Red Devil. Was worried about it fitting in my case as it looked chunky but saw someone else had it fitted so went ahead.
Would have loved to have bought the Merc but it's just a tad too long
It's a shame, as I think it's a nice looking GPU and the RGB is nice too.
"Bykski GPU Water Block for MSI RX 6800 6900 XT Gaming X Trio Video Card" would sort them out for around £100 shipped into the UK from China. Little extreme for some but I personally only run GPUs on water.
You should at least give it a try to be honest.Had a moment of madness and ordered the MSI card but after reading more reports about the thermal issues I'm just going to setup a return and not even open the box. Shame as it seemed decent value given the current market.