[GV-N970G1] Some power consumption questions.

[thebeanogamer]

So, you guys are supposed to be smart, so can somebody please help me with this.

I plan to purchase a GTX 970, and I was looking at the Gigabyte GV-N970IXOC-4GD. The issue with this is that I have a 450watt power supply, and would prefer to not have to purchase a new power supply.

Now, the GV-N970IXOC-4GD has a power requirement of 400W . Pc part picker says I could drive the it but my basic maths proves that wrong.

As I have very little electronics experience so please prove me wrong.

I can get that card for £218.99 through newegg, so if someone can show me a better Nvidia card for around that price point, bearing in mind im selling my reference 750ti (pcpartpicker doesn't have it so I chose the closest thing possible),then great.

Here is my current build.

[PCPartPicker part list](http://uk.pcpartpicker.com/p/VZ9HD3) / [Price breakdown by merchant](http://uk.pcpartpicker.com/p/VZ9HD3/by_merchant/)

Type|Item|Price
:----|:----|:----
**CPU** | [Intel Core i5-4690 3.5GHz Quad-Core Processor](http://uk.pcpartpicker.com/part/intel-cpu-bx80646i54690) | £171.99 @ Ebuyer
**Motherboard** | [Asus H81M-PLUS Micro ATX LGA1150 Motherboard](http://uk.pcpartpicker.com/part/asus-motherboard-h81mplus) | £43.58 @ Ebuyer
**Memory** | [Kingston Fury Black Series 16GB (2 x 8GB) DDR3-1600 Memory](http://uk.pcpartpicker.com/part/kingston-memory-hx316c10fbk216) | £96.64 @ More Computers
**Storage** | [Western Digital BLACK SERIES 1TB 3.5" 7200RPM Internal Hard Drive](http://uk.pcpartpicker.com/part/western-digital-internal-hard-drive-wd1003fzex) | £61.19 @ Aria PC
**Video Card** | [Zotac GeForce GTX 750 Ti 2GB Video Card](http://uk.pcpartpicker.com/part/zotac-video-card-zt7060110m) | £108.05 @ Amazon UK
**Case** | [Cooler Master Elite 311 (Blue) ATX Mid Tower Case](http://uk.pcpartpicker.com/part/cooler-master-case-rc311bbwn1) |-
**Power Supply** | [Corsair VS 450W ATX Power Supply](http://uk.pcpartpicker.com/part/corsair-power-supply-cp9020049ww) |-
**Optical Drive** | [Lite-On iHAS124-14 DVD/CD Writer](http://uk.pcpartpicker.com/part/lite-on-optical-drive-ihas12414) | £9.96 @ Aria PC
**Operating System** | [Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit)](http://uk.pcpartpicker.com/part/microsoft-os-gfc02050) | £67.95 @ Ebuyer
**Wireless Network Adapter** | [TP-Link TL-WN725N 802.11b/g/n USB 2.0 Wi-Fi Adapter](http://uk.pcpartpicker.com/part/tp-link-wireless-network-card-tlwn725n) | £6.96 @ Aria PC
| *Prices include shipping, taxes, rebates, and discounts* |
| **Total** | **£566.32**
| Generated by [PCPartPicker](http://pcpartpicker.com) 2015-04-25 09:43 BST+0100 |

 

[C12Friedman]

The GTX 970 cannot pull 400W, the most powerful cards are limited to 375W (150W per 8 pin connector, 75W from the PCI lane) and the GTX 970 isn't one of those. You should be able to run the GTX 970 with your current PSU. I would not expect your power draw to exceed 300W except perhaps during stress testing. Even stressing I'd be surprised to see a draw of more than 350W.

 

[giantbucket]

150W for gtx970
85W for i5
50W for mobo/ram/hdd/other

285W or so, maybe 300W. you're fine.

 

[thebeanogamer]

The GTX 970 cannot pull 400W, the most powerful cards are limited to 375W (150W per 8 pin connector, 75W from the PCI lane) and the GTX 970 isn't one of those. You should be able to run the GTX 970 with your current PSU. I would not expect your power draw to exceed 300W except perhaps during stress testing. Even stressing I'd be surprised to see a draw of more than 350W.

Thanks A Bunch To Both Of You!