Intel Core i5-12450H vs Intel Core i7-1185G7 vs Intel Core i7-12650H

Intel Core i5-12450H

The Intel Core i5-12450H is a high-end mobile CPU for laptops based on the Alder Lake architecture. It was announced in early 2022 and offers 4 of the 6 performance cores (P-cores, Golden Cove architecture) and 4 of the 8 efficient cores (E-cores, Gracemont architecture) leading to 8 cores in total (octa core CPU). The P-cores support Hyper-Threading leading to 12 supported threads when combined with the E-cores. The clock rate ranges from 2 to 4.4 GHz on the performance cluster and 1.5 to 3.3 GHz on the efficient cluster. The performance of the E-cores should be similar to old Skylake cores (compare to the Core i7-6700HQ). All cores can use up to 12 MB L3 cache. Compared to the 12500H, the 12450H offers less E-cores, lower clock rates, a slower iGPU and no vPro support.

Performance

The average 12450H in our extensive database is a bit of a disappointment, its multi-thread benchmark scores only just matching those of the Ryzen 7 5700U and the Core i7-10750H, both fairly old chips as of Q2 2023.

Your mileage may vary depending on how high the CPU power limits are and how competent the cooling solution of your system is.

Features

The integrated memory controller supports various memory types up to DDR5-4800, DDR4-3200, LPDDR5-5200, and LPDDR4x-4267. The Thread Director (in hardware) can support the operating system to decide which thread to use on the performance or efficient cores for the best performance. For AI tasks, the CPU also integrates GNA 3.0 and DL Boost (via AVX2). Quick Sync in version 8 is the same as in the Rocket Lake CPUs and supports MPEG-2, AVC, VC-1 decode, JPEG, VP8 decode, VP9, HEVC, and AV1 decode in hardware. The CPU only supports PCIe 4.0 (x8 for a GPU and two x4 for SSDs).

The integrated graphics adapter is based on the Xe-architecture and offers 48 of the 96 EUs (Execution Units) operating at up to 1.2 GHz.

The CPU is rated at 45 W base power (95 W PL2) but most laptops will use a PL1 of around 60 Watt. The SoC is manufactured in a 10nm process at Intel, which is known as Intel 7.

Intel Core i7-1185G7

The Intel Core i7-1185G7 is a power-efficient quad-core SoC for laptops and Ultrabooks based on the Tiger Lake-U generation (UP3) that was introduced September 2020. It integrates four Willow Cove processor cores (8 threads thanks to Hyper-Threading). Each core can clock from 1.2 GHz (12 W base clock speed), 3 GHz (28 W base clock speed) to 4.8 GHz (single-core boost). All cores at once can clock at up to 4.3 GHz. At the time of announcement, the i7-1185G7 is the fastest model of the line-up. Since early 2021, the i7-1185G7 supports management features like vPro.

Another novelty is the integrated Iris Xe iGPU based on the completely new Gen 12 architecture. It should offer a significantly higher performance compared to the older Iris Plus G7 (Ice Lake). In the i7-1185G7 it uses 96 EUs and clocks between 400 - 1,350 MHz. The GPU and CPU can together use the 12 MB of L3 cache.

Furthermore, Tiger Lake SoCs add PCIe 4 support (four lanes), AI hardware acceleration, and the partial integration of Thunderbolt 4/USB 4 and Wi-Fi 6 in the chip.

Performance

The average 1185G7 in our database is just as fast as AMD's hexa-core Ryzen 5 4500U, as far as multi-thread benchmark scores are concerned. While the i7 is not the fastest Tiger Lake chip by any stretch of imagination, it's more than usable for your productivity and creative apps, with a bit of gaming possible as well.

Thanks to its decent cooling solution and a long-term CPU power limit of 55 W, the Stealth 15M A11SEK is among the fastest laptops powered by the 1185G7 that we know of. It can be almost twice as fast in CPU-bound workloads as the slowest system featuring the same chip in our database, as of August 2023.

Power consumption

This little Core i7 here has a default TDP of 12 W to 28 W, the expectation being that laptop manufacturers will go for a higher value in exchange for higher performance. Either way, that's a tad too high to allow for passively cooled designs.

The chip is manufactured on Intel's third-gen 10 nm process marketed as SuperFin for average, as of late 2022, energy efficiency.

Intel Core i7-12650H

The Intel Core i7-12650H is a high-end mobile CPU for laptops based on the Alder Lake architecture. It was announced in early 2022 and offers 6 performance cores (P-cores, Golden Cove architecture) and 4 of the 8 efficient cores (E-cores, Gracemont architecture). The P-cores support Hyper-Threading leading to 16 supported threads when combined with the E-cores. The clock rate ranges from 2.3 to 4.7 GHz on the performance cluster and 1.7 to 3.5 GHz on the efficient cluster. The performance of the E-cores should be similar to old Skylake cores (compare to the Core i7-6700HQ). All cores can use up to 24 MB L3 cache. Compared to the 12700H, the 12650H offers only 4 instead of 8 E-cores, a slower iGPU and no vPro features (for remote management).

Performance

The average 12650H in our database is in the same league as the Core i9-11950H, Ryzen 5 7640HS, Ryzen 9 5900HS, as far as multi-thread benchmark scores are concerned. This is a very good result, as of early 2023.

Thanks to its decent cooling solution and a long-term CPU power limit of 80 W, the TUF Dash F15 FX517ZR is among the fastest laptops built around the 12650H that we know of. It can be more than 25% faster in CPU-bound workloads than the slowest system featuring the same chip in our database, as of August 2023.

Features

The integrated memory controller supports various memory types up to DDR5-4800, DDR4-3200, LPDDR5-5200, and LPDDR4x-4267. The Thread Director (in hardware) can support the operating system to decide which thread to use on the performance or efficient cores for the best performance. For AI tasks, the CPU also integrates GNA 3.0 and DL Boost (via AVX2). Quick Sync in version 8 is the same as in the Rocket Lake CPUs and supports MPEG-2, AVC, VC-1 decode, JPEG, VP8 decode, VP9, HEVC, and AV1 decode in hardware. The CPU only supports PCIe 4.0 (x8 for a GPU and two x4 for SSDs).

The integrated graphics card is based on the Xe-architecture and offers 64 of the 96 EUs (Execution Units) operating at up to 1.4 GHz.

Power consumption

This Core i7 has a "minimum assured" power consumption of 35 W, with 45 W being its Base power consumption. The processor's maximum Intel-recommended Turbo power consumption sits at 115 W. It would take at least two fans to cool such a beast.

Last but not the least, Intel Core i7-12650H is built with Intel's fourth-generation 10 nm process marketed as Intel 7 for OK, as of early 2023, energy efficiency.