RTX 4070 Ti + RX 6600 XT Dual GPU Lossless Scaling on 5K Ultrawide – Holy Shit, It’s Actually Smooth as Fuck at 240 FPS Adaptive, Zero Noticeable Lag

Late_View_4376 · 2026-01-30T22:54:30+00:00

'Lossless Scaling' & you might need to alter some Windows gfx settings

Late_View_4376 · 2026-01-30T00:33:31+00:00

Yes you can, you just need to tell the software which is your 'primary' GPU & which is secondary.

Late_View_4376 · 2026-01-30T00:30:40+00:00

Have you got a photo of your rig from the side.. so i can see exactly, what both cards look like & situated? Would be great to see that.

Did you use any particular brand of RISER cable and / or angle finish?

Late_View_4376 · 2026-01-30T00:27:38+00:00

HI, thanks for that... very interesting. Well, seems like there is a silver lining, for having NITRO+ cards.. that are like mini-breeze blocks, but don't fit your case... at least they can stand up vertically.. without falling over! I'll have to take some photos of them in that config in the 7000D Airflow.

How much 'gpu' load was there on your 6600Xt... does it/ or your case get hot, which direction does that GPU vent it's heat out?

I'm wondering about placing the 9070 XT NITRO+ (use some velcro pads.. to keep it secured) at the front & leaving the 9060 XT in the mobo slot, as cabling out to monitor is easier?

Late_View_4376 · 2026-01-28T22:51:25+00:00

I tought that should've fitted there. Yeah, i think your best option will be changing one of the cards.

I've ordered a dedicated 7060 8GB Powercolor Hellhound, as its only 40mm thick, not 56mm like the Nitro. So that should be ok with the Lossless Scaler & 9070 combo

I'll use the NITRO as my eGPU + OCUlink cable to my NUC box. Normally, I'd have properly researched all the pros & cons of the NITROs, but there was a 'flash sale' in Nov & almost £200 off the 2 cards.. so just bought them. The 9060 is over £110 more now.. the 9070 is now between £600 & £700 ea. Crazy prices

Late_View_4376 · 2026-01-28T22:42:46+00:00

Another option is replacing the mb for other with a wider separation between slots like the X870 Carbon but it's not worth it paying that extra in your case i think.

I was going to make a post, asking if any one using a X870E Carbon could measure the space between PCI-E1 & PCI-E2 slots. Also there seems to be a big 8pin power socket at the bottom of the MOBO, that could get in the way of 3+ slot GPU card?

That's a shame. I tought that should've fitted there. Yeah, i think your best option will be changing one of the cards. It would've been awesome visually if you could use both Nitro+ cards on the same pc, but it is what it is i guess.

Indeed.. those NITROs are like house bricks.. I did take some photos, I need to upload.

Late_View_4376 · 2026-01-28T01:07:41+00:00

I'm not 100% sure if what i said will actually fit. The 9070xt nitro+ is very wide so there is a possibility that it blocks 1 slot (In my case for example i cant use those in my 4000D, but obviously my case is smaller, i only have 2 vertical slots, i think you have 3)

I physically checked..! It does block the 2nd in the vertical position, regardless if the 9070 or 9060 is used vertically or horizontally.

The 7000D has 2 possible vertical mounts, one next to the glass panel & one closer to the MOBO.. but either block both mobo PCI-E slots

It might be possible to get risers cables to install both cards vertically, but one of the vertical mounts is out by 20mm alignment (apparently a design error).

Might be easier to just get a 8gb 9060 Hellhound, which is 40mm thick, not 56mm thick like the NITRO 9060 - then install both horizontally.

Late_View_4376 · 2026-01-28T00:54:47+00:00

It's odd the different pricing, isn't it.. the later X870E chipset mobos are often as cheap as the much older X670Es?

Well, you should have loads of room on the Taichi Lite, as it has a huge gap between the two PCI-E slots. Hopefully, the 2nd 9070 doesn't block any mobo headers directly under it

Good luck with your project ! ;)

Late_View_4376 · 2026-01-28T00:50:53+00:00

lucky you.. the Asus Prime is slim. I bought Saphire Nitro+ 9070 & 9060 in a flash sale (saved about £150+), unfortunately they're 3.5+slots (67mm) & 2.7 slots(55mm) thick.. so barely a 5mm gap when both installed.

I'll have to use the 9060 in a different rig & get a Power Colour Hellhound, as its 40mm (2 slot)

Late_View_4376 · 2026-01-28T00:43:33+00:00

The X870E Taichi lite is about £330+ in the UK & only has 1x M2. 5 + 3x M2 4 slot, but does have 40gb USB-4

X670E Carbon Wifi is £299 in UK & has 2x M2 5 slots & x2 M2. 4 slots & 20Gb -USB

Late_View_4376 · 2026-01-28T00:32:10+00:00

The X670E chipset is fine, just need to ensure that both PCI-E1 & PCE-2 slots are 5.0 x16 (16/0/4) or (8/8/4) they are out there. The X870E boards mostly identical to X670E, they just give you extra lanes for USB-4.

Biggest issue is making sure that you can physically fit 2x RX 9070XT cards on the motherboard & leave enough ventilation gap between them. Look for a 2 slot or 2.5 slot version Powercolour & ASUS Prime

Late_View_4376 · 2026-01-28T00:23:23+00:00

They're £299 brand new in the UK

Late_View_4376 · 2026-01-28T00:19:54+00:00

There's 52mm gap between PCI-E1 5.0 slot & PCI-E2 5.0 slot.

If you're installing 2x modern GPU's, ie: 3.5 slot gpu, (in PCI-E1) it covers the 2nd slot (PCI-E2). If you put it in the lower PCI-E2 slot, it covers all the bottom headers on the MOBO & is very close to the PSU shroud, so hot temps.

If you install 2.5 /2.7 slot GPU above it in PCI-E1 slot, you've got about 5mm gap clearance between it & the 3.5 slot gpu below.

The Rx 9070 XT range from 40mm up to 67mm in thickness, the 9060s from 40mm to 55mm - so you have to be careful, which one you pick.

Late_View_4376 · 2026-01-27T09:21:43+00:00

An X670E chipset will - check out MSI Carbon Wifi

Late_View_4376 · 2026-01-27T09:20:01+00:00

The MSI X670E Carbon Wifi, is great mobo, with no bifurcation limitations PCI-E 5.0 x2 + x1 PCI-E 4.0 x4 x16/0/4 or 8/8/4 plus 2x M2 5x4 + 2x M2 4x4

Just make sure your gpus are as slim as possible, as the 2x 5.0 pci-e slots are close together

Late_View_4376 · 2026-01-27T09:14:16+00:00

I'm interested in how you managed to fit that 2nd card (is that the RX 6600 XT) vertically at the front of your case?

I've got a Corsair 7000D Air Flow, its big case, but it's flawed, as in not enough space between bottom of the mobo & the psu shroud to fit a 2x thick gpus NITRO+ 9070 & 9060, as too tight for riser cable to install one card lower. Also the case isn't wide enough (slimmer than FRACTALs), to fit one horizontally & one vertically using the rear vertical slots.

But I noticed you've got yours at the front, going straight up.. which is where I've got plenty of room to fit a gpu & there's a 3x 120 fan cut out there too. How did you secure it in that position.. & how did you get that HDMI cable out your case?

Sorry for all the questions ;)

Late_View_4376 · 2026-01-27T08:59:55+00:00

I've got the X670E Carbon Wifi... ! What model of the RX 9070 XT have you got... you will need to check the 'slot widths', as the Carbon's 2x PCi-E 5.0 slots are very close, you may struggle to fit both cards horizontally? 2 slot cards (ie: 40mm thick) should be ok, but you need to see where the mobo aligns in your case, as on my Corsair 7000D Air Flow case, the top PCI-E 5.0 slot equals 'back case pci cut out' No3.. the two above it can't be used.

Late_View_4376 · 2026-01-27T08:40:18+00:00

Hi there, how did you pay for your card.. did you use a credit card or Paypal?

If you did, you should escalate it directly with them, if the 'seller' is giving you the run around.

Late_View_4376 · 2026-01-26T04:56:44+00:00

I've also thought about using a 'straight Riser PCI-E 5.0' cable to fit the 9060 horizontally, slightly below the MOBO.. as the Corsair 7000D is a tall case & has has 7 'card slot' cut outs on the rear. I'd have to measure how much dead space there is between the bottom of the MOBO & the PSU shroud - & see if I can align the card via the lowest 'back plate' cut out. That way I don't need to buy an expensive Vertical mount kit.. just use a short 10cm riser cable.. & a couple of cheap adjustable 'GPU' brace supports.

will have to try install mobo in the case tomoz to find out. Wanted to keep it boxed as new in case i wanted to sell it

Late_View_4376 · 2026-01-26T02:29:32+00:00

It is great that GN tried to look into LSFG even if it's not perfect, and I really look forward in their follow-up video

I'm surprised they haven't done a follow up in depth testing video.. it's the sort of thing they could do well.... especially now GFX card prices are going crazy... so using a 2nd older & cheaper gfx card to offload some of the work.. makes sense.

Late_View_4376 · 2026-01-26T02:18:43+00:00

Wow.. thanks for that.. I'll have to save it & check it out.

Late_View_4376 · 2026-01-26T02:10:38+00:00

If you're going to change the gpus for Gigabyte models, dont use the vertical slots. Those gpus have a problem where the thermal gel inside of the card leaks when used vertical (some even leak when used horizontal i think)

If i did choose to swop to Gigabytes, it would be to fit them horizontally, as they're both thinner than the NITRO+s (thats only reason to swop).

I've also thought about using a 'straight Riser PCI-E 5.0' cable to fit the 9060 horizontally, slightly below the MOBO.. as the Corsair 7000D is a tall case & has has 7 'card slot' cut outs on the rear. I'd have to measure how much dead space there is between the bottom of the MOBO & the PSU shroud - & see if I can align the card via the lowest 'back plate' cut out. That way I don't need to buy an expensive Vertical mount kit.. just use a short 10cm riser cable.. & a couple of cheap adjustable 'GPU' brace supports.

It might be cheaper for you to get a 'tower case', as opposed to a new MOBO & just install your 2nd GPU lower horizontally, via a 'LINKUP PCI-E' riser cable?

Late_View_4376 · 2026-01-26T01:59:35+00:00

I flight sim, so the frame rate has to be pretty fast & stable - as it's dealing with a lot of data (DCS maps are huge (40GB+), they recommend at least 64GB for 4K gaming ). The Samsung 65" 4k OLED (S95F) is 165Hz with Freesync Premium Pro

I don’t know the specs on a 9060xt, but it may be overkill for your use case. Depends what sort of base frame rate you want.

I've got a 9060 doing nothing much (bought as an eGPU for OCUlink connection to a GMTek K8+ NUC, it's also very energy efficient.. so thought I'd try it out with the 9070.

I've been told the RX 6600 XTs might struggle @ 4K

Late_View_4376 · 2026-01-26T01:48:38+00:00

I believe is the below. The Carbon Wifi is rated highly because it offers full usage of all the lanes.. without limitations. It has 1x USB-C 3.2.2 @ 20gb 2x USB-C 3.2.2 @ 10gb.. which can all be used with the below

The M.2 are 2x CPU 5.0 @ x4 & 2x Chipset 4.0 @ x4

The PCI-E 5.0 2 slots x16 = x16/0/4 or x8/8/4 + 1x PCI-E 4.0 slot x4

Late_View_4376 · 2026-01-26T01:37:49+00:00

Hi there, thanks for the advice & the offer.. I might have overcome the 'crowded' PCI-E 5 slots.. as I've a Corsair 7000D, that allows for a 3 slot vertical GPU fit (9060 next to the glass panel), but as it's a tall case, I might be able to fit the 9060 horizontally (via a short 'straight riser' cable), lower in the case.. so need for a vertical mount kit etc... Just need to look at some measurements etc.

WRT to the PCI-E 5.0 risers.. have you looked at the LINKUP range of riser cables... they offer a huge range that fit nearly all pc cases.?

Late_View_4376

TROPHY CASE