Looking to upgrade PC setup - most likely GPU

Lamps115 · 18 Nov 2018 at 20:08

Current setup!

CPU: Ryzen 2600
CPU Cooler: ARCTIC Freezer 33
MB: B450 Tomahawk
Memory: Corsair Vengeance 16gb (2x8) DDR4-2666
SSD: Samsung 850 evo 250gb
Hardrive: WD 750gb 7200rpm
GPU: MSI Radeon R9 390 8gb
Case: Fractal Design Meshify C
PSU: Corsair TXM Gold 750 W 80+
Monitor: AOC g2460pf (144hz, 1080p)

My budget is around £400 - I've been looking at the Sapphire Nitro+ Vega 64

Be nice to here some advice on what other gpu's i could go for, or other parts.

orbitalwalsh · 19 Nov 2018 at 09:49

vega 56 or 64

Distracted · 19 Nov 2018 at 10:30

Lamps115 said:
My budget is around £400 - I've been looking at the Sapphire Nitro+ Vega 64

The Sapphire Vega 64 is nearly out of stock. If you want one at that price I would order before they sell out.

Lamps115 · 19 Nov 2018 at 14:28

yeh i ordered the Sapphire Vega 64 Nitro+, earlier. I've seen reports that 2 pcie cables are required for this model, is it true? @Distracted @orbitalwalsh

Distracted · 19 Nov 2018 at 14:30

2x 8 pin gpu cables will be needed.

orbitalwalsh · 19 Nov 2018 at 14:45

some cables come with 2 x 6+2 pins on one cable

others supply 2 cables but with only one 6+2 pin per cable

ExoMale · 19 Nov 2018 at 16:17

go vega if you want to keep to amd otherwise grab a 1070ti

Lamps115 · 20 Nov 2018 at 00:34

@Distracted @orbitalwalsh my PSU provides 62a - +12v, is this sufficient enough to have the cable split into 2, 8pins? because i don't have an extra cable, nothing else was provided with the psu i got.

Distracted · 20 Nov 2018 at 00:56

Lamps115 said:
@Distracted @orbitalwalsh my PSU provides 62a - +12v, is this sufficient enough to have the cable split into 2, 8pins? because i don't have an extra cable, nothing else was provided with the psu i got.

You only have a single GPU power cable and it has 2x 8pins (or 6+2) is that correct?

If that is what you are saying, have a look in the PSU box, there should be a second gpu power cable in there. I have the 650w version and it comes with 2xgpu cables each with a couple of 6+2 connectors per cable.

ExoMale · 20 Nov 2018 at 04:52

dont know if it makes any difference, but my rx 570 has 6 and 8 pin and im powering it from just one cable without problems, i have a 2nd cable, but i see that as a dual gpu setup use.

orbitalwalsh · 20 Nov 2018 at 10:54

Lamps115 said:
@Distracted @orbitalwalsh my PSU provides 62a - +12v, is this sufficient enough to have the cable split into 2, 8pins? because i don't have an extra cable, nothing else was provided with the psu i got.

not sure is @EsaT can lend some knowledge here

EsaT · 20 Nov 2018 at 11:55

Every 1/3rd decent 750W PSU should definitely come with two PCI-e cables.
If it was assembled PC contact seller.
If PSU's package was missing the cable, then it didn't come with all parts and someone at Corsair (or Great Wall which is the actual maker) screwed up.
https://www.kitguru.net/components/...r-tx-750m-power-supply-review-80-plus-gold/2/

Using splitter from one cable isn't very good idea, because with such very power hungry card that causes increased voltage losses in wiring and modular cable connector.
And not only for 12V but also for ground/"return" wiring, which could compromise ground reference signal of the card.
(while power loss is doubled compared to two cables)
So even if there weren't instant symptoms like card's stability problems under load, for long term use second cable is very recommendable.

lee32uk · 20 Nov 2018 at 12:19

You should be able to buy a pcie cable from Corsair if need be. They do sell individual cables.

Is the psu a recent purchase ?

ExoMale · 20 Nov 2018 at 16:57

EsaT said:
Every 1/3rd decent 750W PSU should definitely come with two PCI-e cables.
If it was assembled PC contact seller.
If PSU's package was missing the cable, then it didn't come with all parts and someone at Corsair (or Great Wall which is the actual maker) screwed up.
https://www.kitguru.net/components/...r-tx-750m-power-supply-review-80-plus-gold/2/

Using splitter from one cable isn't very good idea, because with such very power hungry card that causes increased voltage losses in wiring and modular cable connector.
And not only for 12V but also for ground/"return" wiring, which could compromise ground reference signal of the card.
(while power loss is doubled compared to two cables)
So even if there weren't instant symptoms like card's stability problems under load, for long term use second cable is very recommendable.

i know this wasnt aimed at me, but should i be using my 2nd pcie cable as well then? never had issues running 2 6 pin off one cable and so far im not sure the 6 + 8 is causing me problems, but whenever i look up my card i get the impression i only need to use the 8 pin?

EsaT · 22 Nov 2018 at 08:38

ExoMale said:
i know this wasnt aimed at me, but should i be using my 2nd pcie cable as well then? never had issues running 2 6 pin off one cable and so far im not sure the 6 + 8 is causing me problems, but whenever i look up my card i get the impression i only need to use the 8 pin?

Average power draw card could well work without problems from single cable.
But using two cables would certainly be always better.
Don't remember if there's been any voltage loss measures, but there might be unnecessary watt or few of transfer losses heating cables and especially PSU's modular cable connector.

8 pin PCI-e cable/connectors again adds just two extra ground pins/wires to lower voltage loss/improve grounding.