Intel Core Ultra 300 Series "Panther Lake" Leaks: 16 CPU Cores, 12 Xe3 GPU Cores, and Five-Tile Package

[AleksandarK]

Intel is preparing to launch its next generation of mobile CPUs with Core Ultra 200 series "Lunar Lake" leading the charge. However, as these processors are about to hit the market, leakers reveal Intel's plans for the next-generation Core Ultra 300 series "Panther Lake". According to rumors, Panther Lake will double the core count of Lunar Lake, which capped out at eight cores. There are several configurations of Panther Lake in the making based on the different combinations of performance (P) "Cougar Cove," efficiency (E) "Skymont," and low power (LP) cores. First is the PTL-U with 4P+0E+4LP cores with four Xe3 "Celestial" GPU cores. This configuration is delivered within a 15 W envelope. Next, we have the PTL-H variant with 4P+8E+4LP cores for a total of 16 cores, with four Xe3 GPU cores, inside a 25 W package. Last but not least, Intel will also make PTL-P SKUs with 4P+8E+4LP cores, with 12 Xe3 cores, to create a potentially decent gaming chip with 25 W of power.

Intel's Panther Lake CPU architecture uses an innovative design approach, utilizing a multi-tile configuration. The processor incorporates five distinct tiles, with three playing active roles in its functionality. The central compute operations are handled by one "Die 4" tile with CPU and NPU, while "Die 1" is dedicated to platform control (PCD). Graphics processing is managed by "Die 5", leveraging Intel's Xe3 technology. Interestingly, two of the five tiles serve a primarily structural purpose. These passive elements are strategically placed to achieve a balanced, rectangular form factor for the chip. This design philosophy echoes a similar strategy employed in Intel's Lunar Lake processors. Panther Lake is poised to offer greater versatility compared to its Lunar Lake counterpart. It's expected to cater to a wider range of market segments and use cases. One notable advancement is the potential for increased memory capacity compared to Lunar Lake, which capped out at 32 GB of LPDDR5X memory running at 8533 MT/s. We can expect to hear more potentially at Intel's upcoming Innovation event in September, while general availability of Panther Lake is expected in late 2025 or early 2026.



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[Assimilator]

One notable advancement is the potential for increased memory capacity compared to Lunar Lake, which capped out at 32 GB of LPDDR5X memory running at 8533 MT/s.

How the actual fuck do you ship a product limited to 32GB in this day and age, especially when your previous products have supported 128GB or more? Lunar Lake seems like even more of a prototype than MTL was.

 

[pressing on]

How the actual fuck do you ship a product limited to 32GB in this day and age, especially when your previous products have supported 128GB or more? Lunar Lake seems like even more of a prototype than MTL was.

On-package memory for Lunar Lake. Designed for ultrathin portables where 16GB/32GB is absolutely OK, there are still plenty of 8GB mobile devices out there. At last count Intel are claiming 8 million MTL laptops sold with sales being restricted by CPU packaging capacity. No sales figures from AMD as yet. AMD reports its Q2 2024 financial results on July 30, there may be some information then.

 

[watzupken]

On-package memory for Lunar Lake. Designed for ultrathin portables where 16GB/32GB is absolutely OK, there are still plenty of 8GB mobile devices out there. At last count Intel are claiming 8 million MTL laptops sold with sales being restricted by CPU packaging capacity. No sales figures from AMD as yet. AMD reports its Q2 2024 financial results on July 30, there may be some information then.

In limiting the amount of system ram to 32GB, it will automatically limit the target market. Most people are fine with 16 or 32GB of system RAM, but there will always be users that may need more for their workflow. Like for Apple, the system RAM is soldered, but you can tell they cater to the different markets by allowing > 32GB of system ram for a price.

 

[N/A]

it's a quad core no HT, efficiency and Lp cores can be discarded as filler, still I have to admit 12 of them are faster than my 14 core Xeon. those take only 2mm2 per core L2cache included or 24mm2. And you probably don't need more than 32GB with that.

 

[Wirko]

What's the LPDDR5X bus width (or total bandwidth) of the Lunar Lake? Intel makes it clear as mud, and tech sites don't all agree. I believe it has two 32-bit channels.

 

[pressing on]

What's the LPDDR5X bus width (or total bandwidth) of the Lunar Lake? Intel makes it clear as mud, and tech sites don't all agree. I believe it has two 32-bit channels.

According to the TechPowerUp article 'Intel Lunar Lake-MX SoC with On-Package LPDDR5X Memory Detailed' of November 20 2023 "...Depending on the processor model, the memory sizes on offer will be either 16 GB or 32 GB, across a 160-bit dual-channel (4x sub-channel) interface".

 

[Wirko]

According to the TechPowerUp article 'Intel Lunar Lake-MX SoC with On-Package LPDDR5X Memory Detailed' of November 20 2023 "...Depending on the processor model, the memory sizes on offer will be either 16 GB or 32 GB, across a 160-bit dual-channel (4x sub-channel) interface".

Yes, I saw that. It's probably wrong because it assumes 4 x 32-bit (plus ECC). Indeed, one of the slides does state this: Capacity: 16GB (16Gb,1R,x64)-32GB (16Gb,2R,2x64). But to me, "2x64" just means 2 ranks on the same 64-bit bus.

A newer TPU article has a slide with more exact info: Support for 16b x4 channels. In comparison, Apple too has 16-bit LPDDR non-X controllers on the M3 series (eight of them on the plain M3). That's why I think it's 64 bits total. Not even 80 because ECC is unlikely in this segment.

 

[persondb]

In limiting the amount of system ram to 32GB, it will automatically limit the target market. Most people are fine with 16 or 32GB of system RAM, but there will always be users that may need more for their workflow. Like for Apple, the system RAM is soldered, but you can tell they cater to the different markets by allowing > 32GB of system ram for a price.

Lunar Lake isn't intended for those markets like for professional video editors that require huge ammounts of RAM. In fact, 32GB is more than enough even for a good portion of professional users.

As for Apple, they don't actually sell all kind of configurations. A M3 Mackbook pro can be configured to be 8GB, 16GB or 24GB, for you to get more than that, you need at least a M3 Pro which caps at 36GB, and for those who want even beyond that, they need to get a M3 Max.

Lunar Lake isn't there to compete with M3 Max and similar chips, by the time you need that much memory you would probably be more disgruntled towards the 4P+0E+4LPE cores.