• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Upgrading to a 3700X or 3950X - Current PSU EVGA G2 @ 550W

CranberryPie

New Member
Joined
Nov 22, 2020
Messages
1 (0.02/day)
Hi Everyone!

I currently have an EVGA Supernova 550W G2 and I am upgrading my CPU to either a Ryzen 3700X or 3900/50X (I haven't decided,) overclocked. I also use a Radeon RX 580 graphics card and plan to upgrade that down the road to a GTX 3070, which will be moderately overclocked.

I haven't overclocked in a while and I believe my calculations are off. I am trying to gauge the max TDP of an overclocked 3700X with a moderately OC'd GPU. I believe a 500W should suffice. Any advice from experienced overclockers is welcome!
 
Joined
Nov 25, 2020
Messages
13 (0.23/day)
System Name ASUS ROG STRIX G15
Processor i7-10750H @ 5 GHZ
Motherboard ASUS
Cooling 2 Fans and 7 Heat pipes
Memory 16GB 3200 MHZ Dual channel
Video Card(s) RTX 2060 Mobile
Storage 512 GB Intel 660p SDD
Display(s) 15" 144 HZ 1080p
Power Supply 230 watt charger
Mouse Standard With RGB
Keyboard Standard With RGB
Software Hwinfo
Benchmark Scores Too much for you to handle
a little bit more power is always useful but i am not a overclocker
 
Joined
Feb 18, 2012
Messages
2,153 (0.66/day)
System Name MSI GE75 Raider
Processor i9 9880h
Cooling 2 laptop fans
Memory 32gb of 3000mhz DDR4
Video Card(s) Nvidia 2080
Storage x2 2tb Intel 660p SSD nvme, WD Red SA500 2.5in 4TB
Display(s) 17.3" IPS 1920x1080 144Hz
Power Supply 280w laptop power supply
Mouse Logitech m705
Keyboard laptop keyboard
Software lots of movies and Windows 10 with win 7 shell
Benchmark Scores Good enough for me
Hi Everyone!

I currently have an EVGA Supernova 550W G2 and I am upgrading my CPU to either a Ryzen 3700X or 3900/50X (I haven't decided,) overclocked. I also use a Radeon RX 580 graphics card and plan to upgrade that down the road to a GTX 3070, which will be moderately overclocked.

I haven't overclocked in a while and I believe my calculations are off. I am trying to gauge the max TDP of an overclocked 3700X with a moderately OC'd GPU. I believe a 500W should suffice. Any advice from experienced overclockers is welcome!
What are you using the processor for. If its for gaming only, the 3700x is more than enough vs 3900x or 3950x.
If its for working stuff, the more cores might work, depending on the work you're doing.
 
Joined
Jun 27, 2015
Messages
598 (0.29/day)
System Name open air
Processor Ryzen R7 1700 Stock
Motherboard Fatal1ty AB350 Gaming-ITX/ac
Cooling Scythe Fuma
Memory Corsair Vengeance LPX 32GB (2 X 16GB) DDR4 DRAM 3466 (PC4-27700) C16 for Intel 100 Series - Red PC M
Video Card(s) XFX RX460 4GB SINGLE SLOT
Storage Crucial Mx100 256GB & Sandisk SSD Plus 480GB
Display(s) NOW LG 27MP38 1980X1080 IPS/OLD Philips Brilliance 220CW 1680x1050 CCFL Monitor ( DEFUNCT)
Case NOTHING no case
Audio Device(s) Onboard
Power Supply CORSAIR SF450 PLATINUM
Mouse Elecom wireless mouse
Keyboard Logitech Mk240 Nano Wireless Keyboard
Software Windows 10 Pro/Enterprise
Benchmark Scores Don't know any benchmark. It runs good enough for me.
Your 550w G2 Evga is quality psu it should be alright. You are unlikely to max the power supply in gaming and normal use. The only time it would trip the power limit is if you were run prime95 and furmark at the same time. Otherwise normal use your rig would draw about 400w on average.

I used a Ryzen 1700 overclock, an old Gtx 780 and an Rx460 back then for mining on an Evga bronze 500w. It never trip despite using 100 percent cpu and gpu.

Overclock does lower efficiency alot though. Otherwise 3900x is fairly power efficient. I am using it now in laptop which rather outlier with 200w psu.
 
Joined
Feb 18, 2012
Messages
2,153 (0.66/day)
System Name MSI GE75 Raider
Processor i9 9880h
Cooling 2 laptop fans
Memory 32gb of 3000mhz DDR4
Video Card(s) Nvidia 2080
Storage x2 2tb Intel 660p SSD nvme, WD Red SA500 2.5in 4TB
Display(s) 17.3" IPS 1920x1080 144Hz
Power Supply 280w laptop power supply
Mouse Logitech m705
Keyboard laptop keyboard
Software lots of movies and Windows 10 with win 7 shell
Benchmark Scores Good enough for me
Your 550w G2 Evga is quality psu it should be alright. You are unlikely to max the power supply in gaming and normal use. The only time it would trip the power limit is if you were run prime95 and furmark at the same time. Otherwise normal use your rig would draw about 400w on average.

I used a Ryzen 1700 overclock, an old Gtx 780 and an Rx460 back then for mining on an Evga bronze 500w. It never trip despite using 100 percent cpu and gpu.

Overclock does lower efficiency alot though. Otherwise 3900x is fairly power efficient. I am using it now in laptop which rather outlier with 200w psu.
You cant really compare using the 3900x in a laptop thats derated to 65w from the normal rating of 105w.
That 3900w in your laptop is derated to 65w only.
 
Last edited:
Joined
Jun 27, 2015
Messages
598 (0.29/day)
System Name open air
Processor Ryzen R7 1700 Stock
Motherboard Fatal1ty AB350 Gaming-ITX/ac
Cooling Scythe Fuma
Memory Corsair Vengeance LPX 32GB (2 X 16GB) DDR4 DRAM 3466 (PC4-27700) C16 for Intel 100 Series - Red PC M
Video Card(s) XFX RX460 4GB SINGLE SLOT
Storage Crucial Mx100 256GB & Sandisk SSD Plus 480GB
Display(s) NOW LG 27MP38 1980X1080 IPS/OLD Philips Brilliance 220CW 1680x1050 CCFL Monitor ( DEFUNCT)
Case NOTHING no case
Audio Device(s) Onboard
Power Supply CORSAIR SF450 PLATINUM
Mouse Elecom wireless mouse
Keyboard Logitech Mk240 Nano Wireless Keyboard
Software Windows 10 Pro/Enterprise
Benchmark Scores Don't know any benchmark. It runs good enough for me.
You can really compare using the 3900x in a laptop thats derated to 65w from the normal rating of 105w.
That 3900w in your laptop is derated to 65w only.


Yeah that why I said it rather an outlier. Just wanted to say that Renoir Cpu really rather power efficient out the box even if it not derated at 105w. Overclocking though would massively reduce the power efficiency though from my experience and it gets obvious when all cores are used.
 
Joined
Feb 18, 2012
Messages
2,153 (0.66/day)
System Name MSI GE75 Raider
Processor i9 9880h
Cooling 2 laptop fans
Memory 32gb of 3000mhz DDR4
Video Card(s) Nvidia 2080
Storage x2 2tb Intel 660p SSD nvme, WD Red SA500 2.5in 4TB
Display(s) 17.3" IPS 1920x1080 144Hz
Power Supply 280w laptop power supply
Mouse Logitech m705
Keyboard laptop keyboard
Software lots of movies and Windows 10 with win 7 shell
Benchmark Scores Good enough for me
Yeah that why I said it rather an outlier. Just wanted to say that Renoir Cpu really rather power efficient out the box even if it not derated at 105w. Overclocking though would massively reduce the power efficiency though from my experience and it gets obvious when all cores are used.
But really depends on what the OP will be using the processor for. Gaming with streaming, 3900x would be good, only gaming stick with 3700x and use the extra money on a faster gpu/bigger SSD.
 
Joined
Dec 14, 2018
Messages
82 (0.11/day)
Location
Finland
System Name No name, yet..
Processor AMD 1800X at stock settings.
Motherboard AsRock X370 itx/ac, /diy vrm heatsink.
Cooling Alphacool Eisbaer 240LT.
Memory 2 x 8gb G.Skill Flare 3200/CL14.
Video Card(s) Gigabyte RTX 2060 oc rev2.
Storage Samsung 960 Evo 500GB m.2, Crucial MX500 2TB sata.
Display(s) HP ZR24W.
Case DIY ITX.
Power Supply Be Quiet 500W sfx-l
Software Win10 home, Ubuntu linux.
I have 1800X and RTX2060/6g. I measured power consumption abaut two weeks ago, running furmark and prime95 simultaneously. 403W Max, my psu is BeQuiet 500W sfx-l. Just a pointer.

If you overclock, at least If I were in your shoes, i'd borrow a bigger psu and measure power usage before buying new psu, as i have no idea how much power is needed when overclocking.
 
Joined
Jul 16, 2014
Messages
4,333 (1.82/day)
Location
SE Michigan
System Name Dumbass
Processor AMD-9370BE @4.6
Motherboard ASUS SABERTOOTH 990FX R2.0 +SB950
Cooling CM Nepton 280L
Memory G.Skill Sniper 16gb DDR3 2400
Video Card(s) GreenTeam 1080 Gaming X 8GB
Storage C:\SSD (240GB), D:\Seagate (2TB), E:\Western Digital (1TB)
Display(s) 1x Nixeus NX_EDG27, 2x Dell S2440L (16:9)
Case Phanteks Enthoo Primo w/8 140mm SP Fans
Audio Device(s) onboard (realtek?) SPKRS:Logitech Z623 200w 2.1
Power Supply Corsair HX1000i
Mouse Logitech G700s
Keyboard Logitech G910 Orion Spark
Software windows 10
Benchmark Scores https://i.imgur.com/aoz3vWY.jpg?2
Hi Everyone!

I currently have an EVGA Supernova 550W G2 and I am upgrading my CPU to either a Ryzen 3700X or 3900/50X (I haven't decided,) overclocked. I also use a Radeon RX 580 graphics card and plan to upgrade that down the road to a GTX 3070, which will be moderately overclocked.

I haven't overclocked in a while and I believe my calculations are off. I am trying to gauge the max TDP of an overclocked 3700X with a moderately OC'd GPU. I believe a 500W should suffice. Any advice from experienced overclockers is welcome!
Overclocking uses more power than you think, so it doesnt hurt to have a bit of headroom when it comes to selecting a PSU. The 580 without overclocking is around 200watts.
 
Joined
Dec 31, 2009
Messages
19,301 (4.78/day)
Benchmark Scores Faster than yours... I'd bet on it. :)
I haven't overclocked in a while and I believe my calculations are off. I am trying to gauge the max TDP of an overclocked 3700X with a moderately OC'd GPU. I believe a 500W should suffice. Any advice from experienced overclockers is welcome!
You will likely be just fine with either CPU you listed. 550W is cutting it close if you overclock the cpu and gpu and stress test them both simultaneously. I wouldnt be surprised if you hit 400-450W during that (PS, don't run furmark.... ever. I saw that software mentioned twice in this thread...scary). During gaming and other activities, it will be less...maybe 400W at most. 3u5W-425W on a 550W unit is perfect to me. The worst that can happen is fan noise...but these units are quiet. I run a 3080 and 10980xe with the latter overclocked on a 750W psu. First time I've seen (nkt heard) the fan spin up on my evga 750w g3. People said i don't have enough power, lol. I pull 550W at the wall during gaming. ;)
 
Last edited:

phill

Moderator
Staff member
Joined
Jun 8, 2011
Messages
9,147 (2.60/day)
Location
Somerset, UK
System Name Not so complete or overkill
Processor Ryzen 3900X
Motherboard Asus Crosshair 8 Hero (Non Wi-Fi)
Cooling Air :(
Memory Patriot 3200MHz 64GB
Video Card(s) 2 x EVGA GTX 1080 Ti SC Black Edition
Storage 1 250GB Crucial SSD for OS/Programs, 2 500GB Crucial SSD for Steam and Epic stores
Display(s) 3 x 23" LG IPS panels (can't remember model!!)
Case 10mm thick MDF on plastic risers.. It's kinda a case??
Audio Device(s) Onboard
Power Supply EVGA P2 1200w
Mouse Corsair thingy
Keyboard Logitec K120......
Software Windows 10
Benchmark Scores I've actually never benched it!! Too busy with WCG and FAH and not gaming!! :( :(
My 3900X at 1.15vcore and two 1080 Ti's in the system pull about 550w with the GPUs turned down a little on the power. With the 3900X crunching away as it does every single day, I can see the watt meter on it now reading about 200w.

I agree with @EarthDog, 550w might be close to the nose if everything is on full tilt and if your pushing the system, but a decent unit will deliver sometimes a little past what it's says on the tin :) I know a review of the original Corsair AX1200 units (just as an example) was able to pull over 1600w before shutting down and then it just simply turned back on again. Decent PSUs are always a absolute must unless your using something in the office. Something then doesn't need to be Gold/Plat/Titanium rated :) It might help with the power bills but not 100% needed as it'll never be under a massive load or have massively powerful kit to pull the power :) Horses for courses :)
 
Joined
Dec 14, 2018
Messages
82 (0.11/day)
Location
Finland
System Name No name, yet..
Processor AMD 1800X at stock settings.
Motherboard AsRock X370 itx/ac, /diy vrm heatsink.
Cooling Alphacool Eisbaer 240LT.
Memory 2 x 8gb G.Skill Flare 3200/CL14.
Video Card(s) Gigabyte RTX 2060 oc rev2.
Storage Samsung 960 Evo 500GB m.2, Crucial MX500 2TB sata.
Display(s) HP ZR24W.
Case DIY ITX.
Power Supply Be Quiet 500W sfx-l
Software Win10 home, Ubuntu linux.
(PS, don't run furmark.... ever. I saw that software mentioned twice in this thread...scary).


What's wrong with furmark? This may be the third time in a short while i see this. Please, share your info, i don't wanna broke my rig... :confused::confused::confused::confused::confused::confused:
 

phill

Moderator
Staff member
Joined
Jun 8, 2011
Messages
9,147 (2.60/day)
Location
Somerset, UK
System Name Not so complete or overkill
Processor Ryzen 3900X
Motherboard Asus Crosshair 8 Hero (Non Wi-Fi)
Cooling Air :(
Memory Patriot 3200MHz 64GB
Video Card(s) 2 x EVGA GTX 1080 Ti SC Black Edition
Storage 1 250GB Crucial SSD for OS/Programs, 2 500GB Crucial SSD for Steam and Epic stores
Display(s) 3 x 23" LG IPS panels (can't remember model!!)
Case 10mm thick MDF on plastic risers.. It's kinda a case??
Audio Device(s) Onboard
Power Supply EVGA P2 1200w
Mouse Corsair thingy
Keyboard Logitec K120......
Software Windows 10
Benchmark Scores I've actually never benched it!! Too busy with WCG and FAH and not gaming!! :( :(
What's wrong with furmark? This may be the third time in a short while i see this. Please, share your info, i don't wanna broke my rig... :confused::confused::confused::confused::confused::confused:
Just don't use it!! Bit like using XTU as well, will kill the CPU if you run it a lot.

What's the point in using Furmark anyways??
 
Joined
Dec 14, 2018
Messages
82 (0.11/day)
Location
Finland
System Name No name, yet..
Processor AMD 1800X at stock settings.
Motherboard AsRock X370 itx/ac, /diy vrm heatsink.
Cooling Alphacool Eisbaer 240LT.
Memory 2 x 8gb G.Skill Flare 3200/CL14.
Video Card(s) Gigabyte RTX 2060 oc rev2.
Storage Samsung 960 Evo 500GB m.2, Crucial MX500 2TB sata.
Display(s) HP ZR24W.
Case DIY ITX.
Power Supply Be Quiet 500W sfx-l
Software Win10 home, Ubuntu linux.
Just don't use it!! Bit like using XTU as well, will kill the CPU if you run it a lot.

What's the point in using Furmark anyways??


I have no idea what XTU is. :confused: :roll:
(Insert meme here) :D:D

I just wanted to know how much power the gpu wants, ran it like 5 minutes or so. Is there a better alternative to load gpu?
 
Joined
Feb 23, 2019
Messages
2,090 (3.00/day)
Location
Poland
Processor Ryzen 7 3700X
Motherboard Gigabyte X570 Aorus Elite
Cooling BeQuiet Dark Rock 4
Memory 2x8 GB Crucial Ballistix Sport LT 3200 CL16 @ 3600 CL16
Video Card(s) EVGA 1060 6GB SSC
Storage SX8200 Pro 1 TB, Plextor M6Pro 256 GB, WD Blue 2TB
Display(s) Acer XB273GP
Case SilverStone Primera PM01 RGB
Power Supply SeaSonic Focus Plus Gold 750W
Mouse SteelSeries Rival 300
Keyboard MK Typist (Kailh Box White)
What's wrong with furmark? This may be the third time in a short while i see this. Please, share your info, i don't wanna broke my rig... :confused::confused::confused::confused::confused::confused:
Furmark is a power virus, not a "benchmark".
 

phill

Moderator
Staff member
Joined
Jun 8, 2011
Messages
9,147 (2.60/day)
Location
Somerset, UK
System Name Not so complete or overkill
Processor Ryzen 3900X
Motherboard Asus Crosshair 8 Hero (Non Wi-Fi)
Cooling Air :(
Memory Patriot 3200MHz 64GB
Video Card(s) 2 x EVGA GTX 1080 Ti SC Black Edition
Storage 1 250GB Crucial SSD for OS/Programs, 2 500GB Crucial SSD for Steam and Epic stores
Display(s) 3 x 23" LG IPS panels (can't remember model!!)
Case 10mm thick MDF on plastic risers.. It's kinda a case??
Audio Device(s) Onboard
Power Supply EVGA P2 1200w
Mouse Corsair thingy
Keyboard Logitec K120......
Software Windows 10
Benchmark Scores I've actually never benched it!! Too busy with WCG and FAH and not gaming!! :( :(
XTU is a little like Furmark, created by Intel to show off their CPUs where 20% faster only because it used a particular instruction set which obviously pushed the scores up... I ran a i3 6320, it killed it. Stock volts as well... So no, just don't use it either...

Well if you want to know how much power the GPU uses, load up another benchmark, 3D Mark, Heaven, Super Position, Catzilla... Heck, even a game would do! :) Plenty to choose from...
 
Joined
Dec 31, 2009
Messages
19,301 (4.78/day)
Benchmark Scores Faster than yours... I'd bet on it. :)
Furmark was called a "power virus" by both amd and nvidia who in their review materials, specifically suggest not to use it. Aside from that, if you notice on Nvidia cards, it will drop the clocks speeds SIGNIFICANTLY in order to stay under the power limit of the card. A couple hundred mhz. So while it may be getting 'hot', it isnt testing much of anything.

If you want a good gpu test, loop 3dmark fire strike extreme, unigine superposition, etc.

As far as intel xtu.... there are no issues running that application on your cpu. One person's anecdote does not make a rule (does anyone think intel would make a utility that kills their chips?). It's no harder than most out there. It was designed to be a stress test/dashboard for the cpu, not to show anything off (yes, it does have a benchmark component, but that wasn't ever its main purpose).
 
Last edited:
Top