Sapphire Radeon RX 7900 XTX Nitro+

[Taisho]

Might need to update that review, Newegg is listing the Nitro at $1,199.99 now... sheesh

What does it change? Every single product on TPU is "editor's choice", 5/5 stars anyway. It has valuable measurements, especially after the tweaks in recent months, but it's absolutely worthless for recommendations.

 

[panthereal]

What does it change? Every single product on TPU is "editor's choice", 5/5 stars anyway. It has valuable measurements, especially after the tweaks in recent months, but it's absolutely worthless for recommendations.

It changes quite a bit; the cost per frame is much different making the Nitro now a worse value than the 3080 at every resolution. Now it's the exact price as a smaller, more power efficient GPU which has proprietary features you will not have on AMD. The 20% premium over the reference model is nearing the highest premium of any manufacturer. That pushes this into the enthusiast GPU with a style tax range instead of a good valued AIB with valuable performance benefits over buying the reference model.

 

[zero989z]

Do you benchmark with extreme settings in heaven? If so, here's an MBA 7900 XTX. And yes, I have a massive 56C delta between core and hotspot.

 

[Athlonite]

Do you benchmark with extreme settings in heaven? If so, here's an MBA 7900 XTX. And yes, I have a massive 56C delta between core and hotspot.

if you have an early version MBM card it's most likely a vBIOS problem if the vBIOS version ends in 008 or lower there's a newer vBIOS that ends in 009 that should fix your issue contact your card manufacturer for an updated vBIOS and the flash program to flash it

 

[zero989z]

if you have an early version MBM card it's most likely a vBIOS problem if the vBIOS version ends in 008 or lower there's a newer vBIOS that ends in 009 that should fix your issue contact your card manufacturer for an updated vBIOS and the flash program to flash it

O_O didn't know that, thanks

 

[Athlonite]

O_O didn't know that, thanks

It also now looks like the problem is the vapour chamber according to der8auer

 

[CapNemo72]

O_O didn't know that, thanks

Did you find out if there is a newer vBIOS for your card? ANd maybe redone your test in Unigine? Thanks

 

[ARF]

@W1zzard Can you add a new page in the review called Undervolting/Underclocking, and begin a new practice to show how much more efficient the cards can run, without the unnecessary factory extreme TDP limits?

 

[gupsterg]

if you have an early version MBM card it's most likely a vBIOS problem if the vBIOS version ends in 008 or lower there's a newer vBIOS that ends in 009 that should fix your issue contact your card manufacturer for an updated vBIOS and the flash program to flash it

The VBIOS has two images, 008 and 009. I have MBA.

GPU-Z will parse VBIOS and show 008, HWINFO (using ADL)/ Driver shows as 009.

AMD VFCT ACPI table dump, VBIOS extraction shows image 2 in use as that's legacy section in there.

 

[wEeViLz]

Quite interesting AMD left decent headroom for OC while releasing RDNA3 unlike nVidia which has pushed their 40 series to absolute limit.

Riiiiight LoLz

 

[watzupken]

Does anyone know what is the power limit using the secondary BIOS? Most review only touch on the temp with the secondary BIOS but not the power draw. I feel its counter productive to use the OC BIOS just for meagre improvement.

 

[THU31]

Quite interesting AMD left decent headroom for OC while releasing RDNA3 unlike nVidia which has pushed their 40 series to absolute limit.

What is interesting is that the 40 series has better efficiency while being pushed to the limit. When you overclock these new Radeon cards, efficiency goes down the drain completely.

Last time they had better efficiency than the 30 series because the Samsung node was pretty bad for high performance chips. But I am surprised NVIDIA pulled so far ahead this time. I doubt the difference between 4 nm and 5 nm nodes is significant. It must be the architectures. AMD definitely dropped the ball here, maybe it has to do with the chiplet design, or maybe the shaders with double instructions per clock are actually inefficient. I wonder if someone will analyze the efficiency drop.

 

[NetCore]

Does anyone know is there a performance difference of the inductors marked LR15 LR12 LR10 on the NITRO+ and MERC310 compared to the R15 on the reference pcb?

 

[Athlonite]

Does anyone know is there a performance difference of the inductors marked LR15 LR12 LR10 on the NITRO+ and MERC310 compared to the R15 on the reference pcb?

yes there is

 

[NetCore]

yes there is

So R15 is the best?

 

[Athlonite]

So R15 is the best?

No it it just means it's rated for higher µH than the other two so probably not a good idea to go replacing the lower rated ones unless they're dead but I wouldn't go higher values than those already being used

 

[sprezzaa]

Would love for Tech to review the aorus 7900xtx elite seems like a good card with. 20 phase voltage and nice cooling solution. Never understood why u never review the gigabyte ones

 

[the54thvoid]

Lots of off topic crap deleted. Keep it relevant to the review please.

 

[ValenOne]

https://www.sapphiretech.com/en/consumer/nitro-radeon-rx-7900-xtx-vaporx-24g-gddr6

These feature Dual Ball bearing fans, which have an approximately 85% longer lifespan than sleeve bearings in our tests.

 

[InfoX]

Hi, Please Sapphire Radeon RX 7900 XTX Nitro+ power consumption with video playback is problem ? Do you hear any improvement with the latest drivers?

I'm very worried about energy consumption, my computer stays on 24hrs.

 

[the_gas]

Hi @W1zzard.

Could you confirm what is the thickness of the VRAM thermal pad Sapphire uses for this card? Is it 1mm or 1.5mm?

 

[W1zzard]

Hi @W1zzard.

Could you confirm what is the thickness of the VRAM thermal pad Sapphire uses for this card? Is it 1mm or 1.5mm?

No idea, and no way to measure at the moment. Just buy both

 

[the_gas]

No idea, and no way to measure at the moment. Just buy both

Lol. If you had to guess and your life depended on it, which one would you pick?

 

[W1zzard]

Lol. If you had to guess and your life depended on it, which one would you pick?

1.5, better too thick than too thin. Should be easy to squish it

 

[the_gas]

1.5, better too thick than too thin. Should be easy to squish it

Appreciate the reply.