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This is a bit of word salad from Intel's marketing, with a catch buried inside the messaging. > up to 120 total platform TOPS (tera operations per second) acro
by bearjaws 2y ago
This is a bit of word salad from Intel's marketing, with a catch buried inside the messaging.
> up to 120 total platform TOPS (tera operations per second) across central processing unit (CPU), graphic processing unit (GPU) and neural processing unit (NPU) to deliver the most compatible and performant AI experiences across models and engines.
Notice they say "most compatible and performant AI across models and engines", this means you don't really get to add all the TOPS up and run them as a unified workload. That sum of 120 is marketing speak, without doubt the CPU will hit ~30w alone just running the 8 cores at full speed, and leave little power for its GPU and NPU. Even with their 50% (claimed) efficiency gain.
They already do this today with their existing laptop chips, so I highly doubt they have changed.
Instead, you get different power targets, TOPS and efficiency depending on the workload. It's the same with Apple, we don't actually know how much wattage the NPU used during their claimed 38 TOPS.
Package power is about all we got until the chip comes out. It's not like Apple and Intel are putting 2w GPUs and 2w NPUs on a 37w package (at least not anymore). They likely utilize 30-50% of the available power.
This is how I read it anyway, I'd love someone else to weigh in and tell me if its different from previous press releases.
- luyu_wu 2y agoOf course not, my point was just that the 37W wasn't an NPU power figure, but a package power.
- MobiusHorizons 2y agoSo is the 15w. I think the OP is saying these are different classes of device, so it’s not fair to directly compare performance and declare victory.
- fmajid 2y agoYes, it’s like misleadingly advertising WiFi routers by adding up the peak theoretical bandwidth of all bands.
- adrian_b 2y agoThe 37 W is only the short-term power, sustainable for a few seconds, perhaps for a half of minute. Lunar Lake is optimized for a steady-state package power of 17 W and it is likely that most devices with it will use this value as the default power limit. The 17 W power limit has been essential in determining the characteristics of Lunar Lake. A CPU designed for 37 W would have looked very different, by being similar to AMD Strix Point (which is optimized for 28 W or more), i.e. by having more CPU cores, a beefier GPU and more PCIe lanes and other peripheral interfaces.