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Intel Core i5-12450H vs Intel Core i7-1270P

Intel Core i5-12450H

► remove from comparison Intel 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.


Due to the combination of P-cores and E-cores, the combined multi-threaded performance should be similar to a Tiger Lake-H octa core with similar clock speed. Therefore, the Core i5-11500H with six cores should be slower. Due to the architectural improvements, single-core performance is also better than similar or higher clocked Tiger Lake CPUs. 


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 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 i7-1270P

► remove from comparison Intel i7-1270P

The Intel Core i7-1270P is a higher-end Alder Lake-P family CPU, an expensive 28 W part meant for use in ultra-light, ultra-thin (yet actively cooled) laptops. This CPU was announced in early 2022 and it has 4 performance cores as opposed to the 6 cores of the top-of-the-line 1280P (P-cores, Golden Cove architecture) mated to 8 efficient cores (E-cores, Gracemont architecture). The P-cores are Hyper-Threading-enabled for a total of 16 threads when combined with the E-cores. The clock speeds range from 2.2 GHz to 4.8 GHz for the performance cluster and 1.6 GHz to 3.5 GHz for the efficient cluster. Full vPro feature set is supported by this Core i7 ("Enterprise" tier, allowing for remote device management). Its shortcomings as compared with the mighty i7-1280P include the smaller L3 cache, lower core count, lower clock speeds; the performance is slated to be significantly lower as a result.

A brief look at the specifications instantly reveals this i7 series chip to be very similar to the Core i5-12600H, a more power-hungry processor targeted at gaming laptops.


The i7 is a continuation of Intel's efforts to use the ARM-developed big.LITTLE technology for its own benefit. A single "little" Alder Lake core is supposed to be as fast as a Skylake core (as found in the venerable Core i7-6700HQ among other options) which is six years old at this point. All of an Intel Core i7-1270P's CPU cores enjoy access to 18 MB of L3 cache. The integrated memory controller supports various memory types up to LPDDR5-5200, DDR5-4800, LPDDR4x-4267 or DDR4-3200. Intel suggests using no more than 64 GB, for reference. Just like the other 12th Gen Intel Core processors, Core i7-1270P comes with Thread Director which is a new functionality designed to help Windows 11 decide which cores to use for what workload for best performance and efficiency possible. Hardware acceleration of AI algorithms is supported via GNA 3.0 and DL Boost (via AVX2). PCI-Express 5.0 support has not found its way into Alder Lake P processors, so users will have to be content with PCI-Express 4.0 for the time being. Four PCI-Express 4 lanes allow for a read/write rate of up to 7.9 GB/s, provided a suitably fast NVMe SSD is used.

Please note this is not a user-replaceable CPU. It gets soldered permanently on to the motherboard (BGA1744 socket interface).


The 12 CPU cores are not just able to outshine any outgoing quad-core Tiger Lake part (the i7-11375H and the i7-1195G7 included); the average 1270P in our database directly competes with the Ryzen 7 5825U, the Ryzen 7 7730U and the Ryzen 7 7735U, meaning the i7 is fast enough to make most consumers happy, as of mid 2023.

The fairly high processing power comes at a cost. A single Golden Cove core can consume more than 20 W when under heavy load. Your mileage may thus vary depending on how high the Power Limits are and how good the cooling solution of your laptop is.


The built-in graphics adapter in the form of the 96 EU Iris Xe running at up to 1.40 GHz has seen no change from what was built into the 11th Gen Tiger Lake-UP3 processors, like an i7-1165G7, which is hardly a downside as this iGPU is loaded with modern features such as AV1 video decoding capability and SUHD 4320p monitor support. Up to 4 monitors can be used simultaneously with this iGPU. We expect the gaming performance to be reasonably close to that of NVIDIA's MX350.

In other words, the Xe is good enough for most games at 1080p resolution / Medium settings, provided the Power Limits are high enough and the cooling solution is competent enough. Fast RAM is a prerequisite for decent performance as well (the Xe has to make do with no dedicated video memory).

Last but not the least, we discovered that the GPU utilization when playing YouTube UHD 2160p60 videos is higher than it was with Tiger Lake chips.

Power consumption

The i7's base power consumption (also known as the default TDP or Power Limit 1) is 28 W, with 64 W being its maximum Turbo power consumption (also known as the PL2). As for the "Minimum Assured" power consumption, Intel's guidelines mention 20 W. All in all, an active cooling solution is a must for such a chip.

The CPU is built with Intel's fourth-gen 10 nm process marketed as Intel 7 for decent, as of late 2022, energy efficiency. It's still a rather power-hungry CPU; a single P-core will happily consume more than 20 W when under heavy load. A couple of the higher-end 7 nm U-class AMD Ryzen 5000 chips are not nearly as power-hungry while delivering similar or higher performance levels.

ModelIntel Core i5-12450HIntel Core i7-1270P
SeriesIntel Alder Lake-PIntel Alder Lake-P
CodenameAlder Lake-HAlder Lake-P
Series: Alder Lake-P Alder Lake-P
Intel Core i9-12900HK compare1.8 - 5 GHz14 / 20 cores24 MB L3
Intel Core i9-12900H compare1.8 - 5 GHz14 / 20 cores24 MB L3
Intel Core i7-12800H compare1.8 - 4.8 GHz14 / 20 cores24 MB L3
Intel Core i7-12650H compare1.7 - 4.7 GHz10 / 16 cores24 MB L3
Intel Core i5-12600H compare2 - 4.5 GHz12 / 16 cores18 MB L3
Intel Core i5-12500H compare1.8 - 4.5 GHz12 / 16 cores18 MB L3
Intel Core i5-12450H « 1.5 - 4.4 GHz8 / 12 cores12 MB L3
Intel Core i7-1280P compare1.3 - 4.8 GHz14 / 20 cores24 MB L3
Intel Core i7-1270P « 1.6 - 4.8 GHz12 / 16 cores18 MB L3
Intel Core i7-1260P compare1.5 - 4.7 GHz12 / 16 cores18 MB L3
Intel Core i5-1250P compare1.2 - 4.4 GHz12 / 16 cores12 MB L3
Intel Core i5-1240P compare1.2 - 4.4 GHz12 / 16 cores12 MB L3
Intel Core i3-1220P compare1.1 - 4.4 GHz10 / 12 cores12 MB L3
Clock1500 - 4400 MHz1600 - 4800 MHz
L1 Cache704 KB1.1 MB
L2 Cache8 MB10 MB
L3 Cache12 MB18 MB
Cores / Threads8 / 1212 / 16
TDP45 Watt28 Watt
Technology10 nm10 nm
max. Temp.100 °C100 °C
FeaturesThread Director, UHD Graphics (48 EUs)DDR4-3200/LPDDR4x-4266/DDR5-4800/LPDDR5-5200 RAM, PCIe 4, Thr. Director, DL Boost, GNA, Rem. Platf. Erase, 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
iGPUIntel UHD Graphics Xe G4 48EUs ( - 1200 MHz)Intel Iris Xe Graphics G7 96EUs ( - 1400 MHz)
ManufacturerIntel Alder Lake-P i5-12450HIntel Alder Lake-P i7-1270P


Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU - i7-1270P
40 pt (59%)
Cinebench R23 - Cinebench R23 Multi Core
min: 8426     avg: 9718     median: 9718 (16%)     max: 11010 Points
Cinebench R23 - Cinebench R23 Single Core
min: 1552     avg: 1620     median: 1620 (71%)     max: 1688 Points
Cinebench R20 - Cinebench R20 CPU (Single Core)
min: 595     avg: 611     median: 611 (70%)     max: 627 Points
Cinebench R20 - Cinebench R20 CPU (Multi Core)
min: 3167     avg: 3536     median: 3536 (15%)     max: 3905 Points
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 1695     avg: 1739     median: 1739 (18%)     max: 1783 Points
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 226     avg: 229.5     median: 229.5 (70%)     max: 233 Points
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
19.9 Points (28%)
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
2.7 Points (70%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
7886 Points (48%)
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
36271 Points (26%)
wPrime 2.10 - wPrime 2.0 1024m *
344.6 s (4%)
wPrime 2.10 - wPrime 2.0 32m *
9.8 s (2%)
WinRAR - WinRAR 4.0
16497 Points (32%)
7-Zip 18.03 - 7-Zip 18.03 Multli Thread 4 runs
min: 38099     avg: 38274     median: 38274 (24%)     max: 38449 MIPS
7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
min: 4874     avg: 5279     median: 5279 (63%)     max: 5684 MIPS
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
min: 9.56     avg: 10.4     median: 10.4 (22%)     max: 11.3 fps
TrueCrypt - TrueCrypt Serpent
0.8 GB/s (28%)
TrueCrypt - TrueCrypt Twofish
1.1 GB/s (20%)
TrueCrypt - TrueCrypt AES
5.8 GB/s (18%)
Blender - Blender 3.3 Classroom CPU *
714 Seconds (9%)
Blender - Blender 2.79 BMW27 CPU *
min: 372     avg: 373.5     median: 373.5 (3%)     max: 375 Seconds
R Benchmark 2.5 - R Benchmark 2.5 *
min: 0.4926     avg: 0.5     median: 0.5 (12%)     max: 0.575 sec
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
7.6 s (2%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
436.4 s (2%)
3DMark 11 - 3DM11 Performance Physics
min: 10981     avg: 12323     median: 12323 (33%)     max: 13665 Points
3DMark - 3DMark Cloud Gate Physics
min: 9451     avg: 9958     median: 9958 (25%)     max: 10465 Points
3DMark - 3DMark Fire Strike Standard Physics
min: 18221     avg: 18284     median: 18283.5 (34%)     max: 18346 Points
3DMark - 3DMark Time Spy CPU
min: 5316     avg: 6022     median: 6021.5 (30%)     max: 6727 Points
Geekbench 5.2 - 5.5 - Geekbench 5.1 - 5.4 64 Bit Single-Core
min: 1564     avg: 1644     median: 1644 (71%)     max: 1724 Points
Geekbench 5.2 - 5.5 - Geekbench 5.1 - 5.4 64 Bit Multi-Core
min: 8610     avg: 8660     median: 8660 (30%)     max: 8710 Points
Geekbench 5.0 - Geekbench 5.0 64 Bit Single-Core
1683 Points (7%)
Geekbench 5.0 - Geekbench 5.0 64 Bit Multi-Core
8537 Points (27%)
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 537     avg: 541     median: 540.5 (1%)     max: 544 ms
Octane V2 - Octane V2 Total Score
78273 Points (72%)
WebXPRT 4 - WebXPRT 4 Score
251 Points (75%)
WebXPRT 3 - WebXPRT 3 Score
min: 279     avg: 285     median: 285 (59%)     max: 291 Points
CrossMark - CrossMark Overall
min: 1585     avg: 1649     median: 1648.5 (64%)     max: 1712 Points
Power Consumption - Prime95 Power Consumption - external Monitor *
min: 47.3     avg: 53.2     median: 53.2 (9%)     max: 59.1 Watt
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
min: 61.3     avg: 63.1     median: 63.1 (13%)     max: 64.9 Watt
Power Consumption - Idle Power Consumption - external Monitor *
4 Watt (3%)
Power Consumption - Idle Power Consumption 150cd 1min *
4.6 Watt (6%)
Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
min: 27.5     avg: 27.6     median: 27.6 (21%)     max: 27.7 Points per Watt

Average Benchmarks Intel Core i7-1270P → 0% n=

- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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Redaktion, 2017-09- 8 (Update: 2023-07- 1)