Intel’s 8-Core Tiger Lake H Pours on the Performance, Power Consumption

intel’s-8-core-tiger-lake-h-pours-on-the-performance,-power-consumption

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For the earlier handful of a long time, Intel has experienced to split its cellular stack between 10nm CPUs optimized for ability consumption with ideal-in-class built-in graphics, and large-conclude 14nm CPUs optimized for most performance, with a weaker iGPU. This still left the corporation hopping a little bit from foot to foot when it arrived to outlining why some 10th Gen mobile CPUs were much better for gaming when some others ended up greatest for compute.

The 8-core Tiger Lake-H CPUs you can obtain today are Intel’s options to this problem. Quad-core Tiger Lake CPUs, which introduced very last yr, ended up lauded for their functionality and battery life enhancements relative to Ice Lake, but Intel hadn’t changed the better TDP sections until the start of these eight-core and six-core Tiger Lake chips.

Intel’s 11th Gen Tiger Lake-H SKUs.

The new Tiger Lake-H CPUs offer you a 45W TDP with an choice to clock up to 65W. At 45W, these CPUs have a foundation frequency of ~two.3-two.6GHz, even though the 65W TDP enables this to increase to as high as three.3GHz for the Core i9-11980HK. All of these CPUs element 32 EUs and 256 onboard Xe graphics cores. These chips are all envisioned to ship with external graphics playing cards the GPUs inside of the reduced-end quad-core Tiger Lake chips are significantly greater, despite their reduced TDPs and smaller main counts.

8 Main Tiger, Burning Brilliant

(With apologies to William Blake)

It is obvious that critique protection came in hot and fast a number of publications report getting fewer than 48 several hours with check hardware ahead of publishing results. Some publications are reporting on Intel reference platforms and some have notebooks. There is also some variance in which CPUs are remaining analyzed — and, curiously, in the conclusions the evaluations appear to.

Gordon Mah Ung at PCWorld has a comprehensive overview of the Aorus 17G with a Main i7-11800H. It’s even now an 8-main Tiger Lake, but it backs a handful of notches off the 65W Main i9-11980HK in conditions of foundation and increase clock. The Core i7-11800H might not pretty capture the Ryzen 9 5900HX, but which is basically AMD’s highest-conclude CPU. It’s a lot more than a match for the Ryzen nine 5980, for example:

Gordon’s tests display the Main i7-11800H is frequently 15-20 % more rapidly than the 10th Gen CPUs it replaces. That is a very reliable generational advancement and on par with what AMD has supplied recently.

But the story all over Tiger Lake isn’t very as simple as this, as Anandtech’s working experience suggests:

Reference System, Pants Ignite

(Did you know William Blake wrote a lot of poems, some of which I haven’t ruined?)

Anandtech has information on the Core i9-11980HK, the prime-finish model within an Intel reference system. Their procedure arrived inadequately configured and would originally make it possible for CPU temperatures up to 96C, with recurrent intense occasions of CPU throttling.

This graph is active, but all 3 traces notify various sections of the similar story: The CPU throttles up to full performance, slams into its thermal restrict, and throttles again to amazing down. Anandtech wound up testing the CPU in 45W method owing to this behavior at 65W.

Though this sounds negative, the simple fact that we’re conversing about an Intel-designed reference platform complicates points. Intel’s reference platform either desires superior UEFI tuning or a superior cooling resolution in get to showcase the opportunity of a 65W CPU in a laptop computer this slim. That does not mean the boutique OEMs who will in fact ship these chips won’t do a far better task cooling them. At 65W, Anandtech notes the 11980HK was only nine per cent faster in multi-threaded SPEC than the 45W variant, inspite of getting a one.44x larger thermal envelope. Plainly, the current cooling alternative was now close to its limit.

Reviewed at 45W, the Main i9-11980HK is claimed to trade blows with the Ryzen 9 5980S, except that “we’re comparing a 45W chip vs a 35W chip, and more generally in compute hefty workloads these as rendering or encoding, the AMD chip comes in advance even although it has a lower TDP,” Anandtech wrote.

We could require to hold out for delivery techniques to see the Core i9-11980HK rather, but it appears a little bit as if Intel pushed TGL properly out of its convenience zone in cellular to near the doorway on 14nm and move ahead with a unified 10nm merchandise loved ones. The corporation has formerly mentioned that 10nm would not be the node it at first preferred in the to start with location.

It might be that we’ll see the strongest uplift for 11th Gen over 10th Gen in the relative center of the merchandise stack. This would echo what we see with Rocket Lake, wherever Intel’s Core i5 CPUs review incredibly nicely against the present-day Ryzen five stack. In the same way, we might discover that Tiger Lake-H CPUs like the Core i7-11800H supply the best relative opposition to AMD, not the Core i9-11980HK.

At existing, it looks as although some of Intel’s 8-main Tiger Lake-H CPUs are a definite enhancement on their predecessors, however the 65W photograph is a little bit murkier. For now, we’re chalking that up to an insufficient reference design and style and we’ll see how points evolve. When compared with AMD’s Ryzen 5000 sequence, Intel seems to be competitive as nicely, however AMD’s best-conclude CPUs draw a lot less electrical power. Reduce electric power consumption is generally an gain in mobile, however it is a little bit fewer critical at the prime of the stack, where we verge into the desktop replacement stop of things.

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