I think your expectations for what emulation is capable of are set a bit high. The fact that it is able to emulate a game that's a few years old at decent frame rate is more than acceptable. You didn't see Microsoft demoing games for their Surface on ARM systems at all and for good reason.
I mean, if I had things my way they wouldn't be switching to ARM at all and emulation wouldn't be necessary, so I don't think it's wrong to be skeptical.
> You didn't see Microsoft demoing games for their Surface on ARM systems at all and for good reason.
Those were also lower-end computers with poor GPUs.
> I'm going to assume that a dedicated GPU was being used for Tomb Raider—they would have said something otherwise.
They said exactly what SoC they were using, and it's not known to have spare PCIe lanes lying unused in existing products. Apple pretty much just demoed an x86 game running on an overclocked iPad Pro.
They only said the demos were running off Apple silicon, not that they were running off a Mac Mini DTK machine.
They probably have other systems more akin to Mac Pros that they use internally.
It's not like Apple can't change what connectors are available on the back of the mac Mini. The form factor may not have changed, but the ports available have in the past releases.
Don't be surprised if there is no Thunderbolt 3 at all, but just USB-C.
It may be that by the time these things are ready for an actual release they can be USB4, which is USB-C + Thunderbolt technology, but no longer Intel exclusive.
> Those were also lower-end computers with poor GPUs.
Were you under the impression this $500 developers kit shipping with an iPad Pro CPU/ GPU is a high end computer? While it's a decent chip, it's essentially the same CPU as the prior generation iPad Pro with 1 additional core.
Shadow of the Tomb Raider is a PS4/XB1 game, not a PS360 game.
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Edit 2: Please disregard my first edit, below—I was right the first time, then I got the games mixed up.
Edit 1: Oh wait, I forgot, SotTR actually did have an Xbox 360 port! It was one of the last big titles to have one. I think what they showed on screen looked better than the 360 version though, although it's admittedly hard to tell on a stream.
Is the target to match the performance of ten year old hardware? Then sure, that's matched. But it's not impressive. AMD FX CPUs have better performance than that, by a mile.
Yeah, but this is their existing CPU/GPU designed to fit into the constraints of the iPad form factor. They'll likely have something much more powerful for consumer hardware.
The iPad CPU/GPU is already thermal limited. An unlimited A12Z is right at the TDP of a laptop chip, at ~25-30W (5W per big core per anandtech, 4 cores, plus GPU and I/O, it's actually quite a generous estimate.
An unlocked A12Z is likely all you can get away with in a laptop, and inferior to SOTA x86 low power CPUs.
If the Tomb Raider game was actually running on a A12Z system (without any external GPU - note that this is the same CPU/GPU on the iPad Pro!), then that demo is actually really impressive, even if the game settings are set to low-quality and the framerate is a bit choppy.
It’s not about the game, it’s about running performance-dependent code written for x86 on an ARM chip. A lot harder to fake a stable frame rate in a game than in Photoshop.
On the other hand, it probably doesn't use much CPU just because it's single threaded. No game ever uses more than 10% of my 16-thread CPU. But that also means that emulation could seriously tank single-thread performance and ruin the game.
It might be the other way around. The might have gotten around the big issue with running arbitrary x86 code on ARM (the way weaker memory model) by pinning all x86 threads in a process to a single core. Which would be unfortunate.
Again, people need to dial back their expectations here. You aren't going to see cutting edge games running well through emulation. There is a reason Apple made such a huge emphasis on native apps, native is always going to run much faster.
They didn't demo gaming to suggest this is a great machine for gaming, they demoed it to show that it was possible at all. The previous version of Rosetta during the PowerPC->Intel transition was not known for performance.
If gaming is important to you and you want a Mac then you want an Intel Mac or whatever games are released for Mac ARM. Emulated games are not going to compete with native.
It was very odd seeing Lara walk through an area with dappled bright light, and her body remain uniformly lit. It may be that the game has a very basic lighting engine though.
It is like many triple A games in that it has a wide range of settings, all the way from full potato to RTX (it was ironically one of the first games to support that).
But does it run better than on the current intel mac mini with integrated graphics? All it needs to do is beat intel in comparable circumstances.
It doesn't really matter what the graphics performance is, on high end macs they'll still ship a dedicated GPU from AMD. What matters is that the game is GPU-limited instead of CPU-limited.
> But does it run better than on the current intel mac mini with integrated graphics? All it needs to do is beat intel in comparable circumstances.
Having gone and checked, no. Not even close.
(Nor would it be plausible to expect to. But it's clear Apple have made a choice here, and that is that if you're a user who wants legacy software or desktop gaming, Apple do not care about you compared to their margins. It's that simple.)
The maxed out mac mini cpu is a 6 core 3.2Ghz i7 with turbo boost to 4.6Ghz. I wonder if they can beat that with a newly ARM optimized MacOS? The current i7 has tons of power still as an 8th gen Intel cpu.
