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I've pre-emptively built a new PC that I'll be putting a 5090 and AMD 9950X3D into. Since the CPU's aren't out until March, I'd like to install the 5090 into my current PC, but it's only got an 800W PSU. Recommended PSU for the 5090 is 1000W.

 

Will the GPU slow down to accomodate a lower power limit or will I be having crashes whenever it spikes up? Alternatively, assuming there's no spikes during the PC power on process and Windows loading up, can I just set a lower power limit in MSI afterburn (maybe 80% or 85%)?

Current PC:

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CPU: AMD Ryzen 9 5900X Motherboard: X570 Aorus Pro WiFi RAM: 4x8GB DDR4 G.Skill Trident Z 3200Mhz CL16 GPU: ASUS TUF Gaming GeForce RTX 4070 Ti Case: Cooler Master MasterCase H500M PSU: Corsair AX860 860W Cooler: EK-Quantum Velocity D-RGB Pump: EK-XRES 140 Revo D5 RGB Storage: Samsung 970 EVO 500GB NVMe + Samsung 970 EVO 2TB NVme NAS: Synology Diskstation DS920+ with 4x Seagate ST4000VN008 4TB IronWolf 3.5" NAS HDD Monitor: Alienware AW3423DWF 34" 166hz 3440x1440 Curved QD-OLED Keyboard: Logitech G915 Mouse: Logitech MX Master 3

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New PC (Build in progress):

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CPU: AMD Ryzen 9 9950X3D Motherboard: X870 Aorus Elite WiFi 7 ICE RAM: 2x32GB DDR5 Silicon Power XPOWER STORM RGB 6000Mhz CL30 GPU: ASUS TUF Gaming GeForce RTX 5090 Case: Lian Li O11 Dynamic EVO XL White PSU: Corsair HX1600i 1500W CPU Cooler: Alphacool Core 1 Aurora White GPU Cooler: Alphacool Core 5090 Waterblock Pump: Alphacool Rise Flat Reservoir D5 with VPP Apex Pump/Res combo Storage: Crucial T700 PCIe5 1TB NVMe + Crucial T700 PCIe5 2TB NVme NAS: Synology Diskstation DS920+ with 4x Seagate ST4000VN008 4TB IronWolf 3.5" NAS HDD Monitor: Alienware AW3423DWF 34" 166hz 3440x1440 Curved QD-OLED Keyboard: Logitech G915 Mouse: Logitech MX Master 3

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Why not buy the 1000+ watt power supply now and use it in your current build until you upgrade? Your next PC will need that power capacity anyway, and then you won't have to worry about it.

I sold my soul for ProSupport.

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AMD R9  7950X3D CPU/ Asus ROG STRIX X670E-E board/ 2x32GB G-Skill Trident Z Neo 6000CL30 RAM ASUS TUF Gaming AMD Radeon RX 7900 XTX OC Edition GPU/ Phanteks P600S case /  Arctic Liquid Freezer III 360 ARGB cooler/  2TB WD SN850 NVme + 2TB Crucial T500  NVme  + 4TB Toshiba X300 HDD / Corsair RM850x PSU/ Alienware AW3420DW 34" 120Hz 3440x1440p monitor / ASUS ROG AZOTH keyboard/ Logitech G PRO X Superlight mouse / Audeze Maxwell headphones

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1 hour ago, Ron30 said:

I've pre-emptively built a new PC that I'll be putting a 5090 and AMD 9950X3D into. Since the CPU's aren't out until March, I'd like to install the 5090 into my current PC, but it's only got an 800W PSU. Recommended PSU for the 5090 is 1000W.

 

Will the GPU slow down to accomodate a lower power limit or will I be having crashes whenever it spikes up? Alternatively, assuming there's no spikes during the PC power on process and Windows loading up, can I just set a lower power limit in MSI afterburn (maybe 80% or 85%)?

Quick question: why the 9950x3D? What are you going to do with this machine that justifies the performance loss from bad OS scheduling over the single CCD processor?

 

Either way, you can lower the power limit of the card and use it in your current machine just fine.

Want to help researchers improve the lives on millions of people with just your computer? Then join World Community Grid distributed computing, and start helping the world to solve it's most difficult problems!

 

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56 minutes ago, Salted Spinach said:

You seem to able to afford a new PSU

 

55 minutes ago, Needfuldoer said:

Why not buy the 1000+ watt power supply now and use it in your current build

I've got a new power supply for the new build. I don't want to take apart my current PC's annoying cable management, only to have it swap it again to sell the PC when the new one is ready. I'd rather drop some GPU performance than bother with a PSU swap.

 

25 minutes ago, PDifolco said:

Perfect. This answers the question. For anyone else reading this, who doesn't want to watch the video, dropping power limit in MSI Afterburner (or other OC / UV tool) is fine.

Current PC:

»---------------------««

CPU: AMD Ryzen 9 5900X Motherboard: X570 Aorus Pro WiFi RAM: 4x8GB DDR4 G.Skill Trident Z 3200Mhz CL16 GPU: ASUS TUF Gaming GeForce RTX 4070 Ti Case: Cooler Master MasterCase H500M PSU: Corsair AX860 860W Cooler: EK-Quantum Velocity D-RGB Pump: EK-XRES 140 Revo D5 RGB Storage: Samsung 970 EVO 500GB NVMe + Samsung 970 EVO 2TB NVme NAS: Synology Diskstation DS920+ with 4x Seagate ST4000VN008 4TB IronWolf 3.5" NAS HDD Monitor: Alienware AW3423DWF 34" 166hz 3440x1440 Curved QD-OLED Keyboard: Logitech G915 Mouse: Logitech MX Master 3

»»---------------------««

 

New PC (Build in progress):

»---------------------««

CPU: AMD Ryzen 9 9950X3D Motherboard: X870 Aorus Elite WiFi 7 ICE RAM: 2x32GB DDR5 Silicon Power XPOWER STORM RGB 6000Mhz CL30 GPU: ASUS TUF Gaming GeForce RTX 5090 Case: Lian Li O11 Dynamic EVO XL White PSU: Corsair HX1600i 1500W CPU Cooler: Alphacool Core 1 Aurora White GPU Cooler: Alphacool Core 5090 Waterblock Pump: Alphacool Rise Flat Reservoir D5 with VPP Apex Pump/Res combo Storage: Crucial T700 PCIe5 1TB NVMe + Crucial T700 PCIe5 2TB NVme NAS: Synology Diskstation DS920+ with 4x Seagate ST4000VN008 4TB IronWolf 3.5" NAS HDD Monitor: Alienware AW3423DWF 34" 166hz 3440x1440 Curved QD-OLED Keyboard: Logitech G915 Mouse: Logitech MX Master 3

»»---------------------««

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8 minutes ago, Imakuni said:

What are you going to do with this machine that justifies the performance loss from bad OS scheduling over the single CCD processor?

I'm waiting for reviews to see if scheduling issues are resolved or not.

Current PC:

»---------------------««

CPU: AMD Ryzen 9 5900X Motherboard: X570 Aorus Pro WiFi RAM: 4x8GB DDR4 G.Skill Trident Z 3200Mhz CL16 GPU: ASUS TUF Gaming GeForce RTX 4070 Ti Case: Cooler Master MasterCase H500M PSU: Corsair AX860 860W Cooler: EK-Quantum Velocity D-RGB Pump: EK-XRES 140 Revo D5 RGB Storage: Samsung 970 EVO 500GB NVMe + Samsung 970 EVO 2TB NVme NAS: Synology Diskstation DS920+ with 4x Seagate ST4000VN008 4TB IronWolf 3.5" NAS HDD Monitor: Alienware AW3423DWF 34" 166hz 3440x1440 Curved QD-OLED Keyboard: Logitech G915 Mouse: Logitech MX Master 3

»»---------------------««

 

New PC (Build in progress):

»---------------------««

CPU: AMD Ryzen 9 9950X3D Motherboard: X870 Aorus Elite WiFi 7 ICE RAM: 2x32GB DDR5 Silicon Power XPOWER STORM RGB 6000Mhz CL30 GPU: ASUS TUF Gaming GeForce RTX 5090 Case: Lian Li O11 Dynamic EVO XL White PSU: Corsair HX1600i 1500W CPU Cooler: Alphacool Core 1 Aurora White GPU Cooler: Alphacool Core 5090 Waterblock Pump: Alphacool Rise Flat Reservoir D5 with VPP Apex Pump/Res combo Storage: Crucial T700 PCIe5 1TB NVMe + Crucial T700 PCIe5 2TB NVme NAS: Synology Diskstation DS920+ with 4x Seagate ST4000VN008 4TB IronWolf 3.5" NAS HDD Monitor: Alienware AW3423DWF 34" 166hz 3440x1440 Curved QD-OLED Keyboard: Logitech G915 Mouse: Logitech MX Master 3

»»---------------------««

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2 minutes ago, Ron30 said:

I'm waiting for reviews to see if scheduling issues are resolved or not.

It's a OS problem, not a CPU one.

 

Spoilers: it won't be. The 9800x3D will be faster in pure gaming. Mark my words.

Want to help researchers improve the lives on millions of people with just your computer? Then join World Community Grid distributed computing, and start helping the world to solve it's most difficult problems!

 

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3 minutes ago, Imakuni said:

It's a OS problem, not a CPU one.

 

Spoilers: it won't be. The 9800x3D will be faster in pure gaming. Mark my words.

Hasnt it been like that for a while?

Aka that the x950x3d chips are gonna have issues with the OS and if you dont do anything that NEEDS such as cpu its better to get the x800x3d version?

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20 minutes ago, Millios said:

Hasnt it been like that for a while?

Aka that the x950x3d chips are gonna have issues with the OS and if you dont do anything that NEEDS such as cpu its better to get the x800x3d version?

A x950x3d is faster in gaming if you disable the non 3d cores, as the silicon is marginally better and clocks higher

Then you can enable them back when you're doing something else 😛

 

 

AMD R9  7950X3D CPU/ Asus ROG STRIX X670E-E board/ 2x32GB G-Skill Trident Z Neo 6000CL30 RAM ASUS TUF Gaming AMD Radeon RX 7900 XTX OC Edition GPU/ Phanteks P600S case /  Arctic Liquid Freezer III 360 ARGB cooler/  2TB WD SN850 NVme + 2TB Crucial T500  NVme  + 4TB Toshiba X300 HDD / Corsair RM850x PSU/ Alienware AW3420DW 34" 120Hz 3440x1440p monitor / ASUS ROG AZOTH keyboard/ Logitech G PRO X Superlight mouse / Audeze Maxwell headphones

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29 minutes ago, Millios said:

Hasnt it been like that for a while?

Aka that the x950x3d chips are gonna have issues with the OS and if you dont do anything that NEEDS such as cpu its better to get the x800x3d version?

Ye.

Want to help researchers improve the lives on millions of people with just your computer? Then join World Community Grid distributed computing, and start helping the world to solve it's most difficult problems!

 

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4 minutes ago, PDifolco said:

A x950x3d is faster in gaming if you disable the non 3d cores, as the silicon is marginally better and clocks higher

Then you can enable them back when you're doing something else 😛

 

 

I suppose I should have phrased my question a bit better

Wasnt the case with CPUs like the 7950x3d that you had to tamper with the OS to get it to fully work meaning its extra hustle especially for those who arent too into this sort of stuff? Meaning the 9800x3d or the 7800x3d work more stably out the box while still offering amazing performance?
If I made any mistake feel free to correct me pls as I wasnt asking which performs better regardless of anything cause then the answer always is the one that is a tier above

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1 minute ago, Millios said:

I suppose I should have phrased my question a bit better

Wasnt the case with CPUs like the 7950x3d that you had to tamper with the OS to get it to fully work meaning its extra hustle especially for those who arent too into this sort of stuff? Meaning the 9800x3d or the 7800x3d work more stably out the box while still offering amazing performance?
If I made any mistake feel free to correct me pls as I wasnt asking which performs better regardless of anything cause then the answer always is the one that is a tier above

Sure no harm done 

Out of the box a x800x3d will work perfectly while x950x3d is harder to configure and may have worse performance in certain games or depending on your settings

But overall a x950x3d is faster and more powerful 

AMD R9  7950X3D CPU/ Asus ROG STRIX X670E-E board/ 2x32GB G-Skill Trident Z Neo 6000CL30 RAM ASUS TUF Gaming AMD Radeon RX 7900 XTX OC Edition GPU/ Phanteks P600S case /  Arctic Liquid Freezer III 360 ARGB cooler/  2TB WD SN850 NVme + 2TB Crucial T500  NVme  + 4TB Toshiba X300 HDD / Corsair RM850x PSU/ Alienware AW3420DW 34" 120Hz 3440x1440p monitor / ASUS ROG AZOTH keyboard/ Logitech G PRO X Superlight mouse / Audeze Maxwell headphones

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