Radeon Software Limiting factors on GPU performance

[Charri40]

 

 

From my observation it appears that the AMD 6000 series GPU are limited to effective clock speeds of about 2500mhz. The reason is that power consumption is limited to about 332 watts. I have a liquid devil 6900xt and put the clock speed pretty high and other settings as high as possible but during testing the GPU only maxes out the power meter and will not reach up any further, no matter if I input 2600mhz, 2700mhz etc.

 

I hope that someone from AMD will see this post and make adjustments to the Radeon Software to allow for more power draw. You can see in my screenshots my Radeon settings and a small stress test showing the metrics. Everything works great, stable and I am very happy with the performance. BUT, I was really wanting to overclock the heck out of this thing even more and the inability to draw anything more than about 332 watts is holding me back.

 

Hopefully an update in the future allows for more power consumption through Radeon Software. If anyone knows about a way to draw more power, tell me.

 

 

 

 

 

[Helpful Tech Witch]

max Power draw isnt dictated by software, but buy the gpu bios...

[Charri40]

I don't think you're correct. Bios is Software. AMD can control hardware with settings through WattMan and Radeon Software. There are pre-existing instances of this idea in other closely related components, like how users can take control of threadripper through Ryzen Master or through a UEFI or BIOS. All that is software used to regulate and control the component.

[Helpful Tech Witch]

11 hours ago, Charri40 said:

I don't think you're correct. Bios is Software. AMD can control hardware with settings through WattMan and Radeon Software. There are pre-existing instances of this idea in other closely related components, like how users can take control of threadripper through Ryzen Master or through a UEFI or BIOS. All that is software used to regulate and control the component.

It doesn’t matter what you think, that’s how it works. 
the power limit maximum is set through the gpu vbios by the gpu manufacture. Sometimes, for overclocking cards like EVGA 3090 ftw3, they release 1000w bioses to extream overclock those cards.

ive also edited bioses to raise this limit

[Charri40]

Good for you. I'm not interested in a hak that is going to void my warranty. I ain't buying what your selling. Don't comment on my post again.

 

For others that are interested, flipping the hardware switch on the powercolor Liquid devil 6900xt away from the power ports [this is a circuitry change] increases the max wattage by 12+ watts fluctuating. Interestingly, more watts resulted in lower temperature on die center and higher clock speed. Impressive.

 

 

Also, when the heck are graphics cards going to put the power cable connectors in the correct spot? They should go on the opposite side of the steel I/O shield. Adjacent to the line they are on now. Every case design I've seen would look better if they were moved, they should be closer to the rubber flap port.

[-rascal-]

26 minutes ago, Charri40 said:

Good for you. I'm not interested in a hak that is going to void my warranty. I ain't buying what your selling. Don't comment on my post again.

 

For others that are interested, flipping the hardware switch on the powercolor Liquid devil 6900xt away from the power ports [this is a circuitry change] increases the max wattage by 12+ watts fluctuating. Interestingly, more watts resulted in lower temperature on die center and higher clock speed. Impressive.

 

Also, when the heck are graphics cards going to put the power cable connectors in the correct spot? They should go on the opposite side of the steel I/O shield. Adjacent to the line they are on now. Every case design I've seen would look better if they were moved, they should be closer to the rubber flap port.

 

And this is EXACTLY what the little switch on your Liquid Devil 6900XT does.

It switches to the SECOND vBIOS -- the OC vBIOS.

 

 

https://www.igorslab.de/en/powercolor-rx-6900xt-liquid-devil-in-test-well-cooled-is-half-won/

Quote

The two screenshots from GPU-Z first give information about the key data of the two BIOSes – on the left you see the normal BIOS (1), on the right the OC BIOS (2):

 

When you design something so complex, like a multi-layer PCB on a graphics card, you need to consider many electrical design requirements.

At an Engineer's standpoint, the "looks" is lower on the priority list.

If you move the PCI-E power connections, you also need to redesign, and reconsider...examples:

• How the Power and Ground plans / PCB layers needs to be designed?
• How does the change affect EMI noise, etc.?
• How are the PCB traces affected now, and does it require more isolation now?
• Will this drive up the cost of the GPU? +$50? +$100? For the manufacturer? How about the consumer? +$200?
• Etc

 

For MY PC case, the Phanteks Enthoo Luxe TG, there is a rubber grommet on the bottom mounted PSU shroud to route the PCi-E cables vertically.

Same with the NZXT S340 Elite in my old Intel build.

There is a cut-out with the Lian-Li Lancool II Mesh in my recent Ryzen 5000-series build.

[Charri40]

No. That is a physical switch you big fat dummy it changes the circuitry.