Intel Alder Lake Mobility CPUs Are Going To Be Very Power Hungry, TDPs Detailed – H-Series Up To 115W, U-Series Up To 64W
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)|
|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|
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.