Intel Core i7-12800HE vs Intel Core i9-12900E Comparison

FAQ

Q: Which CPU is faster in multi-core performance?

A: The Intel Core i9-12900E wins in every multi-core benchmark recorded. It scores 5.2% higher than the Intel Core i7-12800HE in Cinebench R15, R20, and R23 multi-core tests. For example, Cinebench R23 multi-core shows 23,529 for the i9-12900E versus 22,360 for the i7-12800HE.

Q: How does single-core performance compare?

A: The i9-12900E leads in all single-core tests as well. The delta is 5% in Cinebench R15 single-core (334 vs 318) and 5.2% in both Cinebench R20 and R23 single-core tests. The i9-12900E posts 3,321 in Cinebench R23 single-core, while the i7-12800HE achieves 3,156.

Q: What are the core and thread counts?

A: The Intel Core i9-12900E has 16 cores and 24 threads. The Intel Core i7-12800HE has 14 cores and 20 threads. The i9-12900E also has a larger shared L3 cache: 30 MB versus 24 MB on the i7-12800HE.

Q: Which processor has the higher boost clock?

A: The i9-12900E boosts to 5.00 GHz, while the i7-12800HE boosts to 4.60 GHz. The base clocks are close: 2.30 GHz for the i9-12900E and 2.40 GHz for the i7-12800HE.

Q: Do these CPUs use the same socket?

A: No. The i9-12900E uses Intel Socket 1700, a desktop platform, while the i7-12800HE uses Intel BGA 1744, a mobile platform. The i9-12900E is a desktop part, and the i7-12800HE is a mobile part.

Q: What integrated graphics do they carry?

A: The i9-12900E includes UHD Graphics 770, and the i7-12800HE includes Iris Xe 96EU. Both support DDR4 and DDR5 memory in dual-channel mode, and neither supports ECC memory.

The Verdict

The data is unambiguous: the Intel Core i9-12900E wins all six recorded head-to-head benchmarks against the Intel Core i7-12800HE. The verdict for users is straightforward. If you are building a desktop system and want maximum performance in threaded workloads, the i9-12900E is the correct choice. It offers more cores, more threads, a higher boost clock, and a larger L3 cache, and it converts those advantages into consistent benchmark wins.

The i7-12800HE is not without a purpose. It is a mobile processor with a 45 W TDP, designed for laptops and compact systems. Its lower power envelope and BGA socket mean it belongs in a different physical class. The benchmark results show a smaller performance gap than the core count difference might suggest: the i9-12900E is roughly 5% faster across the board, not 15% or 20%. That is a meaningful but not overwhelming margin. Users who prioritize power efficiency and mobile form factors should consider the i7-12800HE, while users who prioritize raw throughput should choose the i9-12900E.

The percentile rankings are identical at 62 for both CPUs, which places them at the same overall level relative to all other processors in the database. The average benchmark score for the i9-12900E is 6,611, and for the i7-12800HE it is 6,467. That is a small edge, but it is consistent across every test.

Head-to-Head Benchmarks

The i9-12900E wins every recorded comparison. The largest single margin is 5.2%, and it appears repeatedly. In Cinebench R15 multi-core, the i9-12900E scores 2,371 against 2,253 for the i7-12800HE, a 5.2% advantage. The R15 single-core test shows 334 versus 318, a 5% lead. The pattern holds in Cinebench R20: multi-core 9,882 versus 9,391 (5.2% delta), and single-core 1,394 versus 1,325 (5.2% delta).

Cinebench R23, the most demanding of the three, continues the trend. Multi-core results are 23,529 for the i9-12900E and 22,360 for the i7-12800HE, again a 5.2% gap. Single-core R23 scores are 3,321 and 3,156, with the same 5.2% delta. The consistency of the margin across all six tests suggests a structural advantage, not a workload-specific quirk. The i9-12900E also appears in the Geekbench tests with scores of 10,280 multi-core and 1,775 single-core, though the i7-12800HE has no recorded Geekbench scores in this database for direct comparison.

The nearest rivals for each CPU put these numbers in context. The i9-12900E is 0.1% ahead of the Intel Pentium Gold G6405 and the Intel Core i9-10940X, and 0.4% ahead of the Intel Core i5-13500E. It is 0.4% behind the Intel Core i5-13400E. The i7-12800HE is 0.7% behind the Intel Xeon D-2796TE, 1% behind the Intel Xeon W-2191B and the Intel Core i9-7960X, and 1.2% ahead of the AMD EPYC 7551. These deltas are small, indicating that both CPUs sit in a densely populated performance band.

Specification Differences

The core counts differ: 16 cores and 24 threads for the i9-12900E, versus 14 cores and 20 threads for the i7-12800HE. Base clocks are nearly identical at 2.30 GHz and 2.40 GHz, respectively, but boost clocks diverge more clearly: 5.00 GHz for the i9-12900E and 4.60 GHz for the i7-12800HE.

The TDP figures are a major differentiator. The i9-12900E is rated at 65 W, while the i7-12800HE is rated at 45 W. This reflects the desktop versus mobile design split. The sockets differ as noted: Intel Socket 1700 for the i9-12900E and Intel BGA 1744 for the i7-12800HE. The i9-12900E has an unlocked multiplier, while the i7-12800HE does not.

The L3 cache is larger on the i9-12900E at 30 MB shared, versus 24 MB shared on the i7-12800HE. L1 and L2 caches are identical per core: 80 KB and 1.25 MB, respectively. PCIe support differs by generation: the i9-12900E offers Gen 5 with 20 lanes (CPU only), while the i7-12800HE offers Gen 4 with 20 lanes (CPU only).

The integrated graphics are different: UHD Graphics 770 on the i9-12900E and Iris Xe 96EU on the i7-12800HE. The i9-12900E has a launch MSRP of $494, while no launch MSRP is recorded for the i7-12800HE. The i9-12900E was released on 2022-01-03, and the i7-12800HE has no recorded release date. Both use the same 10 nm process node from Intel, and both are active in production.

Die sizes are close: 215 mm² for the i9-12900E and 217 mm² for the i7-12800HE. Both support DDR4 and DDR5 memory in dual-channel mode, and neither supports ECC memory.

Architecture Differences

Both processors are built on Intel's Alder Lake architecture and use a 10 nm process node. The codenames differ slightly: Alder Lake-S for the i9-12900E and Alder Lake-H for the i7-12800HE. The S suffix denotes desktop silicon, and the H suffix denotes high-performance mobile silicon. This is the root of most other differences.

The core configuration is a key architectural split. The i9-12900E has 16 cores and 24 threads, which implies a mix of performance and efficiency cores typical of Alder Lake-S desktop parts. The i7-12800HE has 14 cores and 20 threads, a configuration suited to the mobile Alder Lake-H line. The extra two cores and four threads on the i9-12900E directly contribute to its multi-core benchmark lead.

Cache architecture is identical at the per-core level: 80 KB L1 and 1.25 MB L2 for both. The shared L3 cache differs: 30 MB on the i9-12900E versus 24 MB on the i7-12800HE. A larger shared cache can improve data locality across cores, which helps in multi-threaded workloads.

The PCIe implementation differs by generation. The i9-12900E supports PCIe Gen 5 with 20 CPU lanes, while the i7-12800HE supports PCIe Gen 4 with 20 CPU lanes. This matters for desktop expansion: Gen 5 offers higher bandwidth for GPUs and NVMe storage, though the i7-12800HE's Gen 4 support is still capable for mobile use.

Integrated graphics also differ. The i9-12900E uses UHD Graphics 770, a desktop-class iGPU. The i7-12800HE uses Iris Xe 96EU, which is typically a more capable mobile graphics solution. The i7-12800HE also has a lower 45 W TDP, which reflects a power-optimized design for laptops.

The multiplier is unlocked on the i9-12900E, allowing overclocking, while the i7-12800HE is locked. This is consistent with the desktop versus mobile split. The i9-12900E also has a recorded launch MSRP of $494, while no price is recorded for the i7-12800HE, which is often sold as part of a system rather than as a standalone part.

Where Each One Wins

The i9-12900E wins in every benchmark category recorded. That includes multi-core workloads in Cinebench R15, R20, and R23, and single-core workloads in the same three tests. The margins are consistent at 5% to 5.2%. If the task is heavily threaded, such as video rendering, 3D modeling, or software compilation, the i9-12900E's extra two cores and higher boost clock provide a measurable advantage. The larger 30 MB L3 cache also helps in workloads that repeatedly access shared data.

The i9-12900E also wins on platform flexibility. It uses a desktop socket, has an unlocked multiplier, and supports PCIe Gen 5. Users who want to overclock or use high-bandwidth expansion cards will prefer this part. The launch MSRP of $494 gives a reference point for its positioning, though the database does not record a comparable price for the i7-12800HE.

The i7-12800HE wins on power efficiency and form factor. Its 45 W TDP versus 65 W for the i9-12900E means it is designed for systems where heat and battery life are critical. The BGA 1744 socket indicates a soldered, non-upgradeable installation typical of laptops. For mobile users, the performance gap is small enough that the i7-12800HE remains competitive: it trails by only 5% in the worst case, while consuming less power and fitting into a portable chassis.

In use-case terms, the i9-12900E is the pick for a desktop workstation or enthusiast build where performance is the priority and the 65 W TDP is acceptable. The i7-12800HE is the pick for a high-performance laptop or compact mobile system where the 45 W TDP and BGA form factor are requirements. The benchmark data does not show a scenario where the i7-12800HE outperforms the i9-12900E, but the mobile part's advantages lie outside the benchmark scores, in power consumption and physical integration. Users should decide based on platform, not just raw performance numbers.