The TDPs of Intel's upcoming 12th Gen Alder Lake mobility CPUs have been detailed in the latest Linux Coreboot patch. Spotted by Coelacanth-dream (via HardwareTimes), the TDPs reveal Intel's Alder Lake-M & Alder Lake-P TDP values which are seemingly going to be just as high as existing Tiger Lake chips.
Intel Alder Lake 10nm Mobility CPUs Feature TDPs Up To 115W, Both Alder Lake-P & Alder Lake-M Values Detailed
We already detailed the dies of the Alder Lake mobility family a while ago and now we get to talk about the more crucial TDP figures. Once again, Intel's mobility family will be split into different segments starting with the top-of-the-line H45 chips, U28, U15, and U9. The first three chips are part of the Alder Lake-P segment while the U9 chips will be part of the Alder Lake-M segment.
The Intel Alder Lake-H is designated to replace the Tiger Lake-H chips. The new CPUs will feature a hybrid architecture with Golden Cove and Gracemont cores. One of the key changes would be the brand new 10nm Enhanced SuperFin process node (10+++) compared to Tiger Lake's 10nm Super Fin node (10++) node. We can definitely expect some key efficiency improvements but the overall TDP figures will end up the same.
Intel's Alder Lake-H45 Mobility CPUs are expected to feature the same base PL1 TDPs of 45W but the PL2 TDPs will be set at up to 115W. The Intel Tiger Lake-H chips have a PL2 rating of 109W with the Core i9-11980HK being the only exception that has a rating of 135W (performance profile). It's very likely that just like Tiger Lake-H, Alder Lake-H will also feature an overclocking SKU for high-end laptops that will also come with a similar performance profile and higher TDP rating. The stack roadmap did reveal a higher-end SKU with a 55W PL1 rating.
Next up, we have the Alder Lake-P U-Series SKUs. The U28 SKUs will feature 28W PL1 and 64W PL2 ratings while U15 SKUs will feature 15W PL1 and 55W PL2 ratings. The block diagrams showed a 4 plus 8 core configuration for the U15 and a 6 plus 8 core configuration for the U28 parts. Moving on, we have the U9 SKUs which are part of the ultra-low TDP (Alder Lake-M) segment. The U9 SKU will be configured with a base PL1 TDP of 9W and PL2 rating of 30W while the M5 SKUs will get a 5W PL1 TDP and around ~20W PL2 TDP. The following table shows how the TDP values stack up against Tiger Lake mobility chips.
Intel Alder Lake vs Tiger Lake Mobility CPU TDPs
| CPU Segment | PL1 TDP | PL2 TDP | Cores / Threads |
|---|---|---|---|
| Alder Lake-H55 | 55W/45W | >115W | 12 / 16? |
| Alder Lake-H45 | 45W/35W | 115W | 12 / 16? |
| Tiger Lake-H45 | 45W | 109W (i7-11800H) 135W (i9-11980HK) | 8 / 16 |
| Alder Lake-U28 | 20W/28W | 64W | 12 / 16? |
| Tiger Lake-U28 | 28W | 54W (i7-1185G7) | 4 / 8 |
| Alder Lake-U15 | 15W/20W | 55W | 4 / 12? |
| Tiger Lake-U15 | 15W | 44W (Core i7-1180G7) | 4 / 8 |
| Alder Lake-U9 | 9W/15W | 30W | 5 / 6? |
| Tiger Lake-U9 | 9W | 28W | 4 / 8 |
| Alder Lake-M5 | 7W/5W | ~20W | 5 / 6? |
Intel Alder Lake 12th Gen big.SMALL CPU Configs:
| CPU | Big Cores 'Cove' Architecture | Small Cores 'Atom' Architecture | GPU Tier |
|---|---|---|---|
| 8+8+1 | 8 | 8 | GT1 |
| 8+6+1 | 8 | 6 | GT1 |
| 8+4+1 | 8 | 4 | GT1 |
| 8+2+1 | 8 | 2 | GT1 |
| 8+0+1 | 8 | 0 | GT1 |
| 6+8+2 | 6 | 8 | GT2 |
| 6+8+1 | 6 | 8 | GT1 |
| 6+6+2 | 6 | 6 | GT2 |
| 6+6+1 | 6 | 6 | GT1 |
| 6+4+2 | 6 | 4 | GT2 |
| 6+4+1 | 6 | 4 | GT1 |
| 6+2+1 | 6 | 2 | GT1 |
| 6+0+1 | 6 | 0 | GT1 |
| 4+8+2 | 4 | 8 | GT2 |
| 4+0+1 | 4 | 0 | GT1 |
| 2+8+2.5 | 2 | 8 | GT2.5 |
| 2+8+2 | 2 | 8 | GT2 |
| 2+4+2 | 2 | 4 | GT2 |
| 2+0+2 | 2 | 0 | GT2 |
| 2+0+1 | 2 | 0 | GT1 |
| 1+4+1.5 | 1 | 4 | GT1.5 |
| 1+4+1 | 1 | 4 | GT1 |
The Intel Alder Lake CPU lineup is expected to debut later this year and will be featuring a 20% IPC improvement over Rocket Lake which should put it in a competitive position over AMD's Zen 4 CPU architecture. You can learn more about the architectural, IO, and platform enhancements coming to both the 12th Gen desktop and mobile platforms over here.
