Intel Core i9-12900H vs AMD Ryzen 9 6900HS vs Intel Core i7-12800H
Intel Core i9-12900H
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The Intel Core i9-12900H 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 8 efficient cores (E-cores, Gracemont architecture). The P-cores support Hyper-Threading leading to 20 supported threads when combined with the E-cores. The clock rate ranges from 2.5 to 5 GHz on the performance cluster and 1.8 to 3.8 GHz on the efficient cluster. The performance of the E-cores should be similar to old Skylake cores (compare to the Core i7-6920HQ). All cores can use up to 24 MB L3 cache. Compared to the 12900HK, the 12900H does not offer the open multiplicator (for overclocking) but the full "Enterprise" set of vPro features (for remote management).
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 96 EUs (Execution Units) operating at up to 1.45 GHz.
Performance
The average 12900H in our database proves to be an outrageously fast CPU, ripping the Ryzen 9 6900HX to pieces as far as multi-thread benchmark scores are concerned. Perhaps surprisingly, the i9's multi-thread performance is not much higher than that of the Core i7-12700H, suggesting the latter might be a better bang for the buck.
With its decent cooling solution and a long-term Power Limit of 110 W, the Asus StudioBook 16 H7600ZW is one of the fastest laptops built around the i9-12900H that we know of. It can be more than 80% faster than the slowest system featuring the same chip in our database, depending on the circumstances.
Power consumption
The Core i9 has a "minimum assured" power consumption of 35 W, with 45 W being its Base power consumption. The CPU's maximum Intel-recommended Turbo power consumption sits at 115 W.
The i9-12900H is built with Intel's 4th generation 10 nm process marketed as Intel 7 for lower than average, as of mid 2023, energy efficiency.
AMD Ryzen 9 6900HS
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The AMD Ryzen 9 6900HS is a processor for big (gaming) laptops based on the Rembrandt generation. The R9 6900HS integrates all eight cores based on the Zen 3+ microarchitecture. They are clocked at 3.3 (guaranteed base clock) to 4.9 GHz (Turbo) and support SMT / Hyperthreading (16 threads). The chip is manufactured on the modern 6 nm TSMC process. The HS variant offers a 10 W lower TDP and therefore a lower sustained performance than the HX version.
The new Zen 3+ is a refresh of the Zen 3 architecture and should not offer a lot of changes. The chip itself however, offers a lot of new features, like support for USB 4 (40 Gbps), PCI-E Gen 4, DDR5-4800MT/s or LPDDR5-6400MT/s, WiFi 6E, Bluetooth LE 5.2, DisplayPort 2, and AV1 decode.
Performance
The average 6900HS in our database matches the Intel Core i7-12800H in multi-thread performance while managing to keep up with the more power-hungry 6900HX. "Top of the crop" is precisely the right phrase to describe this Ryzen 9 series chip, as of Q4 2022, and it will have no difficulty ripping through any task imaginable for years to come.
Your mileage may vary depending on how high the CPU power limits are, and how competent the cooling solution of your system is.
A big novelty is the integrated GPU Radeon 680M, that is now based on the RDNA2 architecture and offers 12 CUs at up to 2.4 GHz. It should be the fastest iGPU of all at the time of announcement.
The TDP of the APU is specified at 35 Watts and therefore better suited for thin and light laptops. The power efficiency should be very good, thanks to the improved 6 nm process and additional power saving features in the 6000 series.
Intel Core i7-12800H
► remove from comparison
The Intel Core i7-12800H 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 8 efficient cores (E-cores, Gracemont architecture). The P-cores support Hyper-Threading leading to 20 supported threads when combined with the E-cores. The clock rate ranges from 2.4 to 4.8 GHz on the performance cluster and 1.8 to3.7 GHz on the efficient cluster. The performance of the E-cores should be similar to old Skylake cores (compare to the Core i7-6920HQ). All cores can use up to 24 MB L3 cache. Compared to the 12900H, the 12800H is lower clocked and also features the full "Enterprise" set of vPro features (for remote management).
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 96 EUs (Execution Units) operating at up to 1.4 GHz.
Performance
The average 12800H in our database matches the Ryzen 9 6900HS and the Core i9-11900H in multi-thread performance. Which is fairly impressive, as of mid 2022.
Thanks to its decent cooling solution and a long-term CPU power limit of 70 W, the ZBook Studio 16 G9 is among the fastest laptops built around the 12800H that we know of. It can be about 70% faster in CPU-bound workloads than the slowest system featuring the same chip in our database, as of August 2023.
Power consumption
This Core i7 series chip has a "minimum assured" power consumption of 35 W, with 45 W being its Base power consumption. The maximum Intel-recommended Turbo power consumption sits at 115 W.
The i7-12800H is built with Intel's fourth-gen 10 nm process marketed as Intel 7 for average, as of early 2023, energy efficiency.
Model | Intel Core i9-12900H | AMD Ryzen 9 6900HS | Intel Core i7-12800H | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Codename | Alder Lake-H | Rembrandt-H (Zen 3+) | Alder Lake-H | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Series | Intel Alder Lake-P | AMD Rembrandt (Zen 3+) | Intel Alder Lake-P | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Series: Alder Lake-P Alder Lake-H |
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Clock | 1800 - 5000 MHz | 3300 - 4900 MHz | 1800 - 4800 MHz | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
L1 Cache | 1.2 MB | 512 KB | 1.2 MB | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
L2 Cache | 11.5 MB | 4 MB | 11.5 MB | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
L3 Cache | 24 MB | 16 MB | 24 MB | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Cores / Threads | 14 / 20 | 8 / 16 | 14 / 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
TDP | 45 Watt | 35 Watt | 45 Watt | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Technology | 10 nm | 6 nm | 10 nm | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
max. Temp. | 100 °C | 95 °C | 100 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Socket | BGA1744 | FP7/FP7r2 | BGA1744 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Features | DDR4-3200/LPDDR4x-4266/DDR5-4800/LPDDR5-5200 RAM, PCIe 4, Thr. Dir., DL Boost, GNA, RPE, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, BMI2, ABM, FMA, ADX, SMEP, SMAP, EIST, TM1, TM2, HT, Turbo, SST, AES-NI, RDRAND, RDSEED, SHA | DDR5-4800/LPDDR5-6400 RAM (incl. ECC), PCIe 4, MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME | DDR4-3200/LPDDR4x-4266/DDR5-4800/LPDDR5-5200 RAM, PCIe 4, Thread Director, DL Boost, GNA, Remote Platform Erase, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AES, AVX, AVX2, FMA3, SHA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
iGPU | Intel Iris Xe Graphics G7 96EUs ( - 1450 MHz) | AMD Radeon 680M ( - 2400 MHz) | Intel Iris Xe Graphics G7 96EUs ( - 1400 MHz) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Architecture | x86 | x86 | x86 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Announced | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Manufacturer | ark.intel.com | www.amd.com | ark.intel.com |
Benchmarks
Average Benchmarks Intel Core i9-12900H → 100% n=26
Average Benchmarks AMD Ryzen 9 6900HS → 88% n=26
Average Benchmarks Intel Core i7-12800H → 99% n=26

* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation