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Is 650W enough?

Sashkintosh
By Sashkintosh
in Power Supplies
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Hello everyone!

So I am very excited to be building my first PC. The only thing left on my list is a PSU. I just wanted to know if it is ok to go with a 650W unit for my system or if I would have to go for a 750W one.

 

My system specs:

CPU: AMD Ryzen 5 3600x

GPU: Gigabyte 2070 SUPER Windforce OC

MOBO: Asrock B550 Phantom Gaming 4

RAM: Corsair Vengeance RGB PRO 3200MHz (2x8)

STORAGE: 1 x M.2 Samsung Evo Plus 500GB, 1 x Hard drive WesternDigital 1TB 

 

The power supply I plan on getting is a Bitfenix Whisper M 650W GOLD. Do you think it is enough? If not I better get back to researching :D

 

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650w is more than enough for that build.  No comment on the quality of the unit, as I am ignorant on PSU's basically.

"Do what makes the experience better" - in regards to PCs and Life itself.

 

Onyx : AMD Ryzen 7 7800x3d / MSI 6900xt Gaming X Trio / Gigabyte B650 AORUS Pro AX / G. Skill Flare X5 6000CL36 32GB / Samsung 980 1TB x3 / Super Flower Leadex V Platinum Pro 850 / EK-AIO 360 Basic / Fractal Design North XL (black mesh) / AOC AGON 35" 3440x1440 100Hz / Mackie CR5BT / Corsair Virtuoso SE / Cherry MX Board 3.0 / Logitech G502

 

7800X3D - PBO -30 all cores, 4.90GHz all core, 5.05GHz single core, 18286 C23 multi, 1779 C23 single

 

Emma : i9 9900K @5.1Ghz - Gigabyte AORUS 1080Ti - Gigabyte AORUS Z370 Gaming 5 - G. Skill Ripjaws V 32GB 3200CL16 - 750 EVO 512GB + 2x 860 EVO 1TB (RAID0) - EVGA SuperNova 650 P2 - Thermaltake Water 3.0 Ultimate 360mm - Fractal Design Define R6 - TP-Link AC1900 PCIe Wifi

 

Raven: AMD Ryzen 5 5600x3d - ASRock B550M Pro4 - G. Skill Ripjaws V 16GB 3200Mhz - XFX Radeon RX6650XT - Samsung 980 1TB + Crucial MX500 1TB - TP-Link AC600 USB Wifi - Gigabyte GP-P450B PSU -  Cooler Master MasterBox Q300L -  Samsung 27" 1080p

 

Plex : AMD Ryzen 5 5600 - Gigabyte B550M AORUS Elite AX - G. Skill Ripjaws V 16GB 2400Mhz - MSI 1050Ti 4GB - Crucial P3 Plus 500GB + WD Red NAS 4TBx2 - TP-Link AC1200 PCIe Wifi - EVGA SuperNova 650 P2 - ASUS Prime AP201 - Spectre 24" 1080p

 

Steam Deck 512GB OLED

 

OnePlus: 

OnePlus 11 5G - 16GB RAM, 256GB NAND, Eternal Green

OnePlus Buds Pro 2 - Eternal Green

 

Other Tech:

- 2021 Volvo S60 Recharge T8 Polestar Engineered - 415hp/495tq 2.0L 4cyl. turbocharged, supercharged and electrified.

- Lenovo 720S Touch 15.6" - i7 7700HQ, 16GB RAM 2400MHz, 512GB NVMe SSD, 1050Ti, 4K touchscreen

- MSI GF62 15.6" - i7 7700HQ, 16GB RAM 2400 MHz, 256GB NVMe SSD + 1TB 7200rpm HDD, 1050Ti

- Ubiquiti Amplifi HD mesh wifi

 

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You could run that off a good 450W PSU.

 

So yes, 650W will be enough, and the Whisper M is a solid choice.

Desktop: Intel Core i9-9900K | ASUS Strix Z390-F | G.Skill Trident Z Neo 2x16GB @ 3200MHz CL14 | EVGA GeForce RTX 2070 SUPER XC Ultra | Corsair RM650x | Fractal Design Define R6

Laptop: 2018 Apple MacBook Pro 13"  --  i5-8259U | 8GB LPDDR3 | 512GB NVMe

Peripherals: Leopold FC660C w/ Topre Silent 45g | Logitech MX Master 3 & Razer Basilisk X HyperSpeed | HIFIMAN HE400se & iFi ZEN DAC | Audio-Technica AT2020USB+

Display: Gigabyte G34WQC

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That's fine.

i9 9900K @ 5.0 GHz, NH D15, 32 GB DDR4 3200 GSKILL Trident Z RGB, AORUS Z390 MASTER, EVGA RTX 3080 FTW3 Ultra, Samsung 970 EVO Plus 500GB, Samsung 860 EVO 1TB, Samsung 860 EVO 500GB, ASUS ROG Swift PG279Q 27", Steel Series APEX PRO, Logitech Gaming Pro Mouse, CM Master Case 5, Corsair AXI 1600W Titanium. 

 

i7 8086K, AORUS Z370 Gaming 5, 16GB GSKILL RJV DDR4 3200, EVGA 2080TI FTW3 Ultra, Samsung 970 EVO 250GB, (2)SAMSUNG 860 EVO 500 GB, Acer Predator XB1 XB271HU, Corsair HXI 850W.

 

i7 8700K, AORUS Z370 Ultra Gaming, 16GB DDR4 3000, EVGA 1080Ti FTW3 Ultra, Samsung 960 EVO 250GB, Corsair HX 850W.

 

 

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Just now, mahyar said:

corsair rm650 is a sloid unit

I just recently started looking around for PSUs so I do have a lot to learn still. Thank you for the recommendation, will make sure to check it out!

 

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5 minutes ago, Mateyyy said:

You could run that off a good 450W PSU.

 

So yes, 650W will be enough, and the Whisper M is a solid choice.

Yes, I've been visiting online calculators and stuff and it seems fine. The thing is that in Gigabyte and Nvidia's website the minimum PSU wattage is 650. 

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1 minute ago, Sashkintosh said:

Yes, I've been visiting online calculators and stuff and it seems fine. The thing is that in Gigabyte and Nvidia's website the minimum PSU wattage is 650. 

I'd advise against using so-called PSU calculators, as more often than not they're way off.

You'd be a lot better off looking up reviews (from reputable reviewers) on the components you're using (mainly the CPU and GPU), and working off that. 

 

In your case, you're looking at around 80-90W for the CPU:

Spoiler

d7fabae0976ff2fbea2ae0e3c0f384c1.thumb.png.a1ec03efc1c963d7f6fb782353853905.png

And around 220W for the graphics card:

Spoiler

fSeARHUXEikWCLS9XbCzah-970-80.png.f7f97e40a0b4867e6b7a5a5d24fd092f.png

So a good unit in the 450-550W range should work perfectly fine, even more so with 650W.

 

Manufacturer PSU recommendations generally tend on the overkill side, mainly in an attempt to account for people using poor quality PSUs.

Desktop: Intel Core i9-9900K | ASUS Strix Z390-F | G.Skill Trident Z Neo 2x16GB @ 3200MHz CL14 | EVGA GeForce RTX 2070 SUPER XC Ultra | Corsair RM650x | Fractal Design Define R6

Laptop: 2018 Apple MacBook Pro 13"  --  i5-8259U | 8GB LPDDR3 | 512GB NVMe

Peripherals: Leopold FC660C w/ Topre Silent 45g | Logitech MX Master 3 & Razer Basilisk X HyperSpeed | HIFIMAN HE400se & iFi ZEN DAC | Audio-Technica AT2020USB+

Display: Gigabyte G34WQC

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