Kirin X90 PC chip files first public spec sheet
The Kirin X90 PC SoC appeared on China's Information Security Evaluation Center registry with an 8-core CPU, 10-core GPU, and a 100 GB/s memory ceiling.
| Kirin X90 | |
|---|---|
| CPU cores | 8 |
| Base clock | 2.5 GHz |
| GPU | 10-core Ma Liang 920 |
| Memory | 32 GB LPDDR5-6400 |
| Bus width | 128-bit |
| Bandwidth | 100 GB/s |
| Storage | 2 TB SSD |
| I/O | 3 USB-4 ports |
The Kirin X90 appeared on China's Information Security Evaluation Center registry in March 2025, the first public filing for a Huawei PC processor. The listing carries no benchmark, no price, and no ship date. What it does carry is a spec sheet: eight CPU cores on the Taishan v130 architecture at a 2.5 GHz base clock, a ten-core GPU codenamed Ma Liang 920, and a memory subsystem rated at 32 GB LPDDR5-6400 over a 128-bit bus, 100 GB/s.
The frame also includes three USB-4 ports and a 2 TB SSD ceiling. The 7 nm process node is an inference drawn from Huawei's foundry constraints, not a figure in the filing itself. An earlier unnamed report placed the SoC "in the same ballpark as Apple's M2," but that comparison sits outside the document and carries no measurement behind it.
The constraint here is Huawei's: a 100 GB/s memory ceiling on a 128-bit bus means the GPU is bandwidth-starved relative to what a 10-core unit would want under sustained load. The document does not prove the chip can hold that 2.5 GHz clock under thermal load, nor does it confirm the node. For a buyer in the Chinese market, the USB-4 triple and the LPDDR5-6400 pairing are the parts that matter for a workstation build; for anyone outside that market, the filing proves existence, not availability.
No benchmark score, no sustained-load bandwidth figure, no price, and no confirmed launch date appear in the filing. The M2 comparison is a secondhand claim with no test data attached.
The 100 GB/s memory ceiling on a 128-bit bus is the binding constraint: a 10-core GPU will starve under sustained load, and the filing does not prove the 2.5 GHz clock holds under thermal pressure. For buyers outside China, the document confirms existence but not availability, and the 7 nm node remains an inference rather than a stated fact.
No benchmark score, no confirmed process node, no price, and no launch date appear in the filing.
At 100 GB/s over 128 bits, the memory subsystem caps the Ma Liang 920 GPU well below what a 10-core array needs for compute workloads. The 2.5 GHz figure is labelled base, not boost, and no thermal or power envelope is given. The node is inferred from SMIC's available PDK, not stated in the filing. The M2 comparison is unmeasured.
After huawei.com. We did not report this. The pictures, if any, are theirs.


