INTEL

Intel's First 10nm Processor Lands In China

Intel's much-anticipated, and oft-delayed, 10nm processors have popped up in a Lenovo Ideapad 330, which is a low-end notebook that comes with 4GB of memory and 500GB HDD, at Chinese retailer JD.com.The dual-core Core i3-8121U sports the Cannon Lake architecture, but the integrated graphics are either disabled or not present. As a result, the notebook comes with RX540 graphics. We followed up with Intel, which confirmed that the chips are only on sale in China. The company will not share a specific date for possible U.S. distribution, but it shared the full specs of the new processor.Intel has long been known for its aggressive cadence of transitions to smaller process nodes, but the 10nm process has proven to be its biggest challenge in recent history. Intel first planned on delivering processors based on the smaller process in 2015, but now it has pushed high volume manufacturing back to 2019 due to yield issues that make the end products too expensive for mass production.

	Intel Core i3-8121U	Intel Core i3-8130U
Architecture	Cannon Lake	Kaby Lake
Lithography	10nm	14nm+
Cores/Threads	2 / 4	2 / 4
Base/Boost Frequency (GHz)	2.2 / 3.2	2.2 / 3.4
Cache	4MB	4MB
TDP	15W	15W
Memory Support	DDR4-2400, LPDDR4/x-2400	DDR4-2400, LPDDR3-2133
Memory Channels	2	2
Memory Bandwidth	41.6 GB/s	34.1GB/s
PCIe	PCIe 3.0 x16	PCIe 3.0 x12
Tjunction	105C	100C
Package Size	45mm x 24mm	42mm x 24mm
Integrated Graphics	No	Intel UHD Graphics 620
AVX	AVX2	AVX2

In the interim, Intel has released the Core i3-8121U to market. This new chip comes bearing the Cannon Lake microarchitecture, but the details of the new design are still wrapped in secrecy. We expect that the new architecture will provide improved performance per clock (IPC) that will boost overall performance, but we will not know the details until the processors land in the hands of a capable tester. Intel is not disclosing pricing on its newest chip, and it has yet to make an appearance on its processor pricing list.



The Core i3-8121U comes equipped with Turbo Boost 2.0, much like its closest cousin, the Kaby Lake Core i3-8130U. Both chips feature the same 15W TDP, but the Cannon Lake model comes with a 200 MHz lower Turbo Boost frequency, which could be offset by increased IPC. Last year, Intel revealed that its inaugural 10nm process would not provide more transistor-level performance than the highly-refined 14nm ++ process, but the company claims it will offer more performance than the 14nm + used on the Kaby Lake models. We'll have to wait to see how that translates to chip-level performance.The Core i3-8121U has a few notable additions, such as 16 lanes of PCIe 3.0, which is an improvement over the Kaby Lake model's 12 lanes. Intel also included support for up to 32GB of LPDDR4, which yields higher memory bandwidth than the Kaby Lake model.Intel increased the size of the package to 45 x 24mm, which means the chip is not compatible with the Kaby Lake BGA mounting. We also see a slightly increased Tjunction of 105C, which is the maximum temperature the chip can sustain before it begins to throttling.It has been rumored that the leading 10nm Intel chips come with a disabled graphics unit, but we can not be sure that Intel built the capability into the die. In either case, the -8121U comes with integrated graphics, which means it does not support other graphics-acceleration features. Intel recently updated its Architecture Instruction Set Extensions and Future Features (PDF) document, which states that the Cannon Lake processors support AVX-512. The Core i3-8121U does not support the feature, but we would not expect to find AVX-512 in low-cost notebooks anyway.Intel's eighth-generation chips now include Kaby Lake, Coffee Lake, and Cannon Lake processors built on the 14nm +, 14nm ++, and 10nm processes. The extended eighth-generation branding is indicative of Intel's ongoing struggle to field new microarchitectures as it tries to deploy new process technologies. Intel has made impressive performance gains over the course of the four iterations of the 14nm process by tightening design metrics, but the company has curiously decided to lock its new microarchitectures behind the smaller process nodes. It's puzzling that Intel has not simply brought a new microarchitecture to the existing process, thereby providing larger performance benefits than we see with the rewarmed Skylake architecture.For now, it seems that the Core i3-8121U will serve as a learning vehicle for Intel as it improves its 10nm process. The relatively unimpressive dual-core chip is also rumored to surface in the upcoming Crimson Canyon NUC next month.


Paul Alcorn-TH