Benchmarking 18 Years Of Intel Laptop CPUs: Panther Lake As Much As 95x The Speed Of Penryn

Written by Michael Larabel in Processors on 26 February 2026 at 10:50 AM EST. Page 11 of 12. 33 Comments.

👁 TensorFlow benchmark with settings of Device: CPU, Batch Size: 1, Model: ResNet-50. Core Ultra X7 358H - MSI Prestige 14 was the fastest.

👁 TensorFlow benchmark with settings of Device: CPU, Batch Size: 32, Model: ResNet-50. Core Ultra X7 358H - MSI Prestige 14 was the fastest.

TensorFlow wasn't able to successfully run on the oldest laptops/CPUs tested.

👁 OpenVINO benchmark with settings of Model: Face Detection FP16-INT8, Device: CPU. Core Ultra X7 358H - MSI Prestige 14 was the fastest.

I was very surprised to find Intel's OpenVINO AI toolkit able to run still all the way back to Penryn. But it was painfully slow and following OpenSSL, OpenVINO was the other workload often showing the greatest difference from Penryn to Panther Lake.

👁 OpenVINO benchmark with settings of Model: Weld Porosity Detection FP16-INT8, Device: CPU. Core Ultra X7 358H - MSI Prestige 14 was the fastest.

👁 OpenVINO benchmark with settings of Model: Weld Porosity Detection FP16-INT8, Device: CPU. Core Ultra 7 256V - Zenbook S14 was the fastest.

👁 OpenVINO benchmark with settings of Model: Vehicle Detection FP16-INT8, Device: CPU. Core Ultra X7 358H - MSI Prestige 14 was the fastest.

👁 OpenVINO benchmark with settings of Model: Person Vehicle Bike Detection FP16, Device: CPU. Core Ultra X7 358H - MSI Prestige 14 was the fastest.

👁 OpenVINO benchmark with settings of Model: Machine Translation EN To DE FP16, Device: CPU. Core Ultra X7 358H - MSI Prestige 14 was the fastest.

👁 OpenVINO benchmark with settings of Model: Person Re-Identification Retail FP16, Device: CPU. Core Ultra X7 358H - MSI Prestige 14 was the fastest.

In case you wanted to quantify how painful the OpenVINO AI toolkit is to run on a 45nm dual core laptop CPU....

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URL: https://www.phoronix.com/review/intel-penryn-to-panther-lake/11

⇱ Benchmarking 18 Years Of Intel Laptop CPUs: Panther Lake As Much As 95x The Speed Of Penryn - Phoronix

Benchmarking 18 Years Of Intel Laptop CPUs: Panther Lake As Much As 95x The Speed Of Penryn