Quote from: opckieran on Today at 06:23:36AMD fanboys are upset

As an IntelFan I'm also upset about because the best Intel iGPUs (10-12 graphics cores) are only available with soldered memory. Likewise AMD makes its Halo only available with soldered memory. Both use the same dirty tricks, when a product is too good and flexible for the customer, and then make it immutable. Enough reason to be mad about them both.

Performance rating
Strix Halo memory interface is 256-bit lanes wide vs Panther Lake' 128-bit, but SH is only 65% faster.

Efficiency
When a power limit is set, it means the whole SOC or only the iGPU?
Not power limited - default power profile
B390 vs 890M: B390 is 22% more power efficient (and is similar to the 130V, 140V, Strix Halo's 8050S / 8060S and a 4050 Laptop.
So, not much, except it's better than the 890M.

B390 vs 860M: B390 is 34% more power efficient (a 1 full node / generation improvement).

B390 vs 880M: B390 is 65% more power efficient (a 2 full nodes / generations improvement).

With different power limits
B390 (20W) vs 860M (15W TDP): B390 is 90% more energy efficient.
B390 (20W) vs 880M (15W TDP): B390 is 135% more energy efficient.
B390 vs 890M (15W TDP): B390 is 46% (35W), 61% (28W) and 75% (20W) more energy efficient.

So, the B390 wins against the 860M, 880M and 890M ranging from 22% (no power limit) to 138% (20W power limit).

Personally, I prefer a light weight laptop and as such a low power SoC of, say, 15W up to maybe 30W TDP. And this is where Panther Lake shines, which is very nice to see.

But if this iGPU comes only in expensive laptops, people will simply get a 4050 laptop. So, Intel, maybe reduce the number of cores or whatever to make a cheaper SoC, with the same iGPU performance.

To test
I wonder how the B390 iGPU performs in path-tracing / full ray tracing. E.g. Cyberpunk 2077' Overdrive preset. Can you test this (performance and power efficiency)?

The big question is how well/stable do games run, maybe you can test that too (you did test the iGPU of the 1st gen Qualcomm Elite and many games didn't run/were unstable).

Quote from: Terror Byte on Today at 03:45:00The fact that 8060s @ 80W was more efficient than Panther Lake at its default power level tells me that 8060S compared at 20/28/35/45W would be very efficient too.

With no limit the 8060S is only 5% more power efficient, so it's kinda within the margin of error or insignificant. But AFAIK, Panther Lake has 1 full node advantage (TSMC 3N for the GPU part?). Looks like something is reducing Panther Lake' power efficiency (Intel's CPU cores or something being clocked too high (would probably be the iGPU, because at low power Panther Lake's iGPU becomes really power efficient)).

Dave2D has similar to report: youtu.be/fDwt9AiItqU?t=142 ("Windows is Ruining New Laptops."), but the interesting thing he says is that Apple is taking laptop market share due to how Windows 11 is.

Quote from: opckieran on Today at 06:23:36Meanwhile, AMD fanboys are upset; the latest rumors say we'll be stuck with RDNA 3.5 until 2029! I'd be mad too!

Currently going through the 5 stages of grief. Almost at the end now. I've just come to accept it.

From now on I will no longer comment on AMD gfx IP unless it's PlayStation or Exynos news. Not until after 2029, if their Radeon division hasn't been sold off to Sony by then.

Quote from: br83taylor on Today at 03:25:57Do you have any data points for Strix Halo at lower power?

ThePhawx does. It does scale but only to a certain point. Halo does better at the higher power tiers while at the lower end panther lake does better.

Quote from: Terror Byte on Today at 03:45:00The fact that 8060s @ 80W was more efficient than Panther Lake

Who uses or cares about performance at 80W? NUC users?

Intel has just delivered +70% iGPU perf and efficiency out of thin air in a genuine thin and light form factor. Meanwhile, AMD fanboys are upset; the latest rumors say we'll be stuck with RDNA 3.5 until 2029! I'd be mad too!

Although the Strix Halo GPUs are even faster (but not more efficient), they operate at higher power limits. There are only a handful of corresponding devices on the market, which then are also quite expensive.

Basless comment as you did not compare the two at the same power levels. The fact that 8060s @ 80W was more efficient than Panther Lake at its default power level tells me that 8060S compared at 20/28/35/45W would be very efficient too.

Nice article. Do you have any data points for Strix Halo at lower power? Based on the video from Digital Foundry on the GPD Win 5 it scales well down to comparable power settings, likely with higher efficiency.