Friday, September 6th 2024
Intel Core Ultra 300 Series "Panther Lake-H" Leaks: 18 CPU Cores, 12 Xe3 GPU Cores, and up to 45 Watt TDP
Details have emerged about Intel's upcoming "Panther Lake" processors, set to be the third generation of Core Ultra mobile chips. Called the Core Ultra 300 series, these CPUs are expected to succeed "Lunar Lake". According to recent leaks, Panther Lake-H will be manufactured using Intel's cutting-edge 18A process node. The chips are said to feature a combination of Cougar Cove P-Cores, Skymont E-Cores, and Xe3 (Celestial) integrated graphics. This architecture builds upon Intel's hybrid core design, refining it for even better performance on mobile devices. The leaked information suggests a range of configurations for Panther Lake-H, the high-perfomance variant of the lineup. These include models with varying core counts and power envelopes, from efficient 25 W parts to more interesting 45 W options. Notably, some SKUs reportedly feature up to 18 cores in total, combining P-cores, E-cores, and LP E-cores in a five-tile package. This is an increase from previously believed 16 cores.
Here are the leaked SKUs:
PTL-H 4+8+4+4Xe 25 W
PTL-H 4+8+4+12Xe 25 W
PTL-H 4+0+4+4Xe 25 W
PTL-H 6+8+4+4Xe 45 W
PTL-H 6+8+4+12Xe 28 W
One of the most intriguing aspects of the leak is the inclusion of powerful integrated graphics in some models. Certain SKUs are said to boast 12 Xe3 GPU cores, even in relatively low-power 25 W and 28 W configurations. This could significantly boost graphics performance in thin and light laptops. Some high-wattage SKUs, like the 45 W model, should be configured with higher clocks. While these specifications are still subject to change before the official release, they provide an exciting glimpse into Intel's future mobile offerings. The Panther Lake series is expected to debut in the second half of 2025 if everything goes according to plan at Intel HQ.
Sources:
Jaykihn on X, via Tom's Hardware
PTL-H 4+8+4+4Xe 25 W
PTL-H 4+8+4+12Xe 25 W
PTL-H 4+0+4+4Xe 25 W
PTL-H 6+8+4+4Xe 45 W
PTL-H 6+8+4+12Xe 28 W
One of the most intriguing aspects of the leak is the inclusion of powerful integrated graphics in some models. Certain SKUs are said to boast 12 Xe3 GPU cores, even in relatively low-power 25 W and 28 W configurations. This could significantly boost graphics performance in thin and light laptops. Some high-wattage SKUs, like the 45 W model, should be configured with higher clocks. While these specifications are still subject to change before the official release, they provide an exciting glimpse into Intel's future mobile offerings. The Panther Lake series is expected to debut in the second half of 2025 if everything goes according to plan at Intel HQ.
25 Comments on Intel Core Ultra 300 Series "Panther Lake-H" Leaks: 18 CPU Cores, 12 Xe3 GPU Cores, and up to 45 Watt TDP
anyone know if there are plans for an n100 successor?
OK...OK..... there are 6P cores models too. How exciting!!!
That 6P 12Xe model looks promising for gaming without discrete graphics card.
That 4P 12Xe model goes directly to handhelds.
Having 3 different types of core clusters in one CPU is crazy. AFAIK, they still haven't 100% solved issues relating to putting heavy load on e-cores on existing hybrid CPUs.
What's the point of LP-e-cores? Weren't regular e-cores meant to be P-cores with lower power and higher efficiency? They overcomplicate things. This might strike back on them badly.
And talking about Xe3 Celestial GPU units in CPUs in 1st half of 2025? After that voving from Xe Arc to Xe2 Battlemage took them almost 2 years?
Lunar Lake removes LPE cores, but moves E-cores outside of the ring bus, which is now only for P-cores. The latency penalty will most likely remain similar, but its impact might be higher due to basically half the cores being outside vs. just 2 in MTL.
Panther Lake seems to reintroduce dedicated LPE cores. The question is whether E-cores remain outside of the ring bus or are they moved back to the main core cluster like in Meteor Lake?
In any case, scheduling problems will be present in all of mentioned generations albeit having different characteristics which makes it harder to support properly.
200 = Arrow Lake
300 = Panther Lake
400/500 = Arrow Lake refresh (probably) (not sure if Bartlett Lake still is coming and gets same naming convention so it could be 400)
500/600 = Nova Lake
Basically starting new gen of architecture at 100 and increments 100 for each new gen. You can still recognise i5, i7 and i9 equivalents via Ultra 5, 7 or 9 tag.
That being said, I do expect Intel to win the next round of iGPUs, maybe not in stability, power efficiency and drivers, but in performance. I think MSI has seen what Xe2 could do and the first Claw was just a test drive, while also a way to please Intel. It wouldn't be the first time AMD is sleeping while being ahead of the competition, only to end up behind chasing. AMD needs to integrate Infinity Cache in it's iGPUs or do something similar to the good old Sideport Memory in their future designs, because I think they hit a ceiling with their architecture and the bandwidth they can get from DDR5.
Intel Core ultra 420 ultra HX XS 666