NVIDIA Tegra X1 Performance Exceeds Intel Bay Trail SoCs, AMD AM1 APUs

An anonymous reader writes: A NVIDIA SHIELD Android TV modified to run Ubuntu Linux is providing interesting data on how NVIDIA's latest "Tegra X1" 64-bit ARM big.LITTLE SoC compares to various Intel/AMD/MIPS systems of varying form factors. Tegra X1 benchmarks on Ubuntu show strong performance with the X1 SoC in this $200 Android TV device, beating out low-power Intel Atom/Celeron Bay Trail SoCs, AMD AM1 APUs, and in some workloads is even getting close to an Intel Core i3 "Broadwell" NUC. The Tegra X1 features Maxwell "GM20B" graphics and the total power consumption is less than 10 Watts.

Comments

Not an AMD CPU

[Guspaz]

The X1 uses a standard ARM Cortex A57 (specifically it's an A57/A53 big.LITTLE 4+4 config), so this says more about ARM's chip than anything nVidia did...

Now if you compared nVidia's Denver CPU, their in-house processor... The Denver is nearly twice as fast as the A57, but only comes in a dual-core config, so it's probably drawing a good deal more power. When you compare a quad-core A57 to a dual-core Denver, the A57 comes out slightly ahead in multicore benchmarks. Of course, single core performance is important too, so I'd be tempted to take a dual-core part over a quad-core if the dual-core had twice the performance per-core...

Why the X1 didn't use a variant of Denver isn't something that nVidia has said, but the assumption most make is that it wasn't ready for the die shrink to 20nm that the X1 entailed.

Interesting, but compiler settings aren't optimal

[the_humeister]

Look here at the compiler settings. The x86 processors are somewhat hampered by non-optimal settings. For example the i3 5010U is set to -mtune=generic. In my experience, that's basically going to default to AMD K8 optimization with no AVX/AVX2 support. The better option would be using -mtune=native or better yet -march=native, which would detect the CPU and produce a more optimized binary.

10W is hellish hot

[mtippett]

10W is incredibly hot for any sort of passively cooled, enclosed device.

The machine would be quite warm (almost hot) to the touch unless they use some inventive cooling. The current Gen Apple TV is about 6W, and your typical smartphone is around 2-3 W.

There is a reason that NV has only really been able to get a foothold in tablets, android TV, cars and their own shield product. Quite simply put, they have historically been fast and hot. Great as a SOC within certain markets.

Re:nice, but they remove your games if you update

[Junta]

The more troubling question is why an application should feel forced to do anything in the face of a platform upgrade in order to work at all. A modern Windows desktop can still run 10 year old software without a hiccup. Going back 20 years you start needing something like dosbox to use a lot of the applications, though still doable. I haven't tried firing it up in a while, but last time I tried the commercial package of quake 3 under linux, it still worked on a modern distribution. Same for linux neverwinter nights. As an application maintainer for some linux stuff, the only things that I can recall forcing my hand to change something for things to work were systemd and python changes.

Android (and to a significant, but somewhat lesser extent Apple) are not doing that good with respect to application and/or hardware compatibility into the past. It's a tiring situation for developers to have to follow an upgrade treadmill in order to cater to new system sales, just to keep the current applications workable as-is.