Carzy Zarx’s PC Gaming Emporium - Catch Up on All the Latest PC Gaming Related News

[Jizz_Beard_thePirate]

Bofferbrauer2 said:

Captain_Yuri said:

AMD Radeon 780M RDNA3 integrated graphics have been tested in 3DMark

https://videocardz.com/newz/amd-radeon-780m-rdna3-integrated-graphics-have-been-tested-in-3dmark

Talk about small improvement... The only good 780M is the one running at 54 watts which is a lot for a iGPU. Certainly won't be possible with the Steam Deck 2.

Those 54W are for the entire APU, not just the iGPU.

Also, small improvement? Compared to it's direct predecessor, the 6900HS, it went from 2292 to  2791, so a 25% increase. It's certainly not as big as with the switch from Vega to RDNA2, but a pretty substantial increase nonetheless. It's also getting dangerously close to the different NVidia 16/20/3050 GPUs in laptops while obliterating their entire MX series lineup. What more did you expect, really?

I don't see why the 54W is supposed to be the only good one. If the GPU can still beat everything the last gen could reach while limited to 25W and last gen was already considered pretty playable in FHD with low or medium details, I'd say this means the 780M is still very playable while on battery.

Why shouldn't it be possible for the Steam Deck 2? The Vega 8 in the Steam Deck (which only reaches up to 1700 points btw) is also underclocked compared to 4000/5000 series APUs. It will probably not get quite as many points in a steam deck configuration even when paired with faster memory (780M supports up to LPDDR5-7500), but I think a score comparable to the one of the 6800U (which most probably ran at 25W TDP to get that score) in the graph should be very achievable. This in turn would be a 30-40% increase, plus whatever an upgraded CPU would add to the mix.

It is a pretty small improvement because a 6800U has a tdp of 28 watts. So if we compare the 28 watt 6800U to the 25 watt 7940HS, that's like 8-9% improvement. 6900HS also has a tdp of 35 watts... So in order for the 7940HS to get 2791 score, it needed to be bumped up to 54 watts... So that's a 54% increase in wattage for a 22% increase in performance... That's horrid... I expect better from AMD, that's for sure.

Also a 3050 has nearly double the time spy score so it's not really close...

That's also some Intel logic you go there. Sure it can beat everything last gen at 25 watts but by 1-8% is pretty terrible...

The Steam Deck does not have a Vega 8 GPU. I have no idea where you got that from. It has 8 RDNA 2 CUs and the APU runs at 15 watts. The point was that because of how inefficient the 7940HS is, Valve might be better off going with RDNA 2 solution or waiting for RDNA 4 to see if there will be bigger efficiency gains for the Steam Deck 2.

Last edited by Jizz_Beard_thePirate - on 03 February 2023