Intel Core i9-12900T vs Intel Core i9-14901E Comparison

The Verdict

The Intel Core i9-14901E is the stronger all-around performer, winning 13 of the 17 recorded head-to-head comparisons. Its advantages are most pronounced in single-thread workloads, physics simulation, and prime number computation, where it leads by double-digit percentages. The Intel Core i9-12900T, however, retains clear superiority in data compression, encryption, and extended instruction workloads, making it the better choice for those specific tasks. The benchmark data shows the 14901E sits at the 86th percentile of all CPUs, while the 12900T sits at the 85th percentile, a narrow gap that reflects their close average scores. Users prioritizing raw multithreaded throughput with lower power draw will find the 12900T compelling, but the 14901E delivers higher peak performance across most recorded tests.

Architecture Differences

The two processors represent different generations of Intel desktop silicon, both built on a 10 nm process at Intel's foundry. The Core i9-12900T uses the Alder Lake architecture with the Alder Lake-S codename, while the Core i9-14901E uses the Raptor Lake architecture with the Raptor Lake-R codename. Both share the same Intel Socket 1700 and feature the UHD Graphics 770 integrated GPU.

Core configuration differs substantially. The 12900T packs 16 cores and 24 threads, while the 14901E has 8 cores and 16 threads. The 12900T's core count is double that of the 14901E, yet the 14901E compensates with higher clock speeds: a base clock of 2.80 GHz versus 1.40 GHz, and a boost clock of 5.60 GHz versus 4.90 GHz. The 14901E's larger per-core L2 cache (2 MB per core versus 1.25 MB per core) and larger shared L3 cache (36 MB versus 30 MB) also contribute to its per-thread efficiency.

Memory support is identical in both: DDR4 and DDR5 with dual-channel memory buses. PCIe connectivity differs, with the 12900T offering Gen 5 with 20 lanes (CPU only) versus the 14901E's Gen 5 with 16 lanes (CPU only). The 14901E supports ECC memory, while the 12900T does not. The 14901E's multiplier is locked, whereas the 12900T has an unlocked multiplier for overclocking. The 12900T has a TDP of 35 watts, while the 14901E has a TDP of 65 watts. Die sizes differ as well: 215 mm² for the 12900T and 257 mm² for the 14901E.

Head-to-Head Benchmarks

The 14901E dominates the Cinebench suite across the board. In Cinebench R15 multicore, it scores 2595 against 2472 for the 12900T, a 4.7% lead. The single-core R15 result shows 366 versus 348, a 4.9% advantage. Cinebench R20 multicore sees 10816 versus 10301, and R20 single-core sees 1526 versus 1454, both roughly 4.8% and 4.7% deltas respectively. Cinebench R23 multicore continues the trend: 25753 versus 24528, a 4.8% margin, while R23 single-core shows 3635 versus 3462, also 4.8%. These consistent single-digit leads indicate the 14901E's higher clocks and newer architecture deliver steady gains across all rendering workloads.

The PassMark suite reveals a more mixed picture. The 12900T wins decisively in data compression with a score of 345021 versus 288777, a 19.5% advantage. Data encryption also favors the 12900T: 20750 versus 18571, an 11.7% lead. Extended instructions show the 12900T ahead at 20054 versus 17249, a 16.3% margin. Random string sorting is a narrow win for the 12900T: 39771 versus 39138, just 1.6% ahead.

The 14901E strikes back in several PassMark subtests. Floating point math goes to the 14901E at 81089 versus 75741, a 6.6% lead. Integer math shows 112736 versus 108211, a 4% advantage. Multithread performance favors the 14901E at 30298 versus 29601, a 2.3% margin. The largest deltas appear in two specialized tests: physics simulation sees the 14901E at 3041 versus 1811, a massive 40.4% lead, and find prime numbers shows 189 versus 116, a 38.6% advantage. Single-thread performance in PassMark also favors the 14901E: 4354 versus 3810, a 12.5% lead.

Specification Differences

The recorded data shows several key specification differences between the two processors. Core count: 16 cores for the 12900T versus 8 cores for the 14901E. Thread count: 24 threads versus 16 threads. Base clock: 1.40 GHz versus 2.80 GHz. Boost clock: 4.90 GHz versus 5.60 GHz. TDP: 35 watts versus 65 watts.

Cache layouts differ: L1 cache is identical at 80 KB per core, but L2 cache is 1.25 MB per core for the 12900T versus 2 MB per core for the 14901E. L3 cache is 30 MB shared versus 36 MB shared. PCIe lane counts differ: 20 lanes for the 12900T versus 16 lanes for the 14901E, both Gen 5. ECC memory support is absent on the 12900T and present on the 14901E. The multiplier is unlocked on the 12900T and locked on the 14901E.

Die size is 215 mm² for the 12900T and 257 mm² for the 14901E. Release dates differ: January 2022 for the 12900T and June 2024 for the 14901E. The 12900T has a recorded launch MSRP of $489, while the 14901E has no recorded launch MSRP in the database. The 12900T carries part number SRL4M, and the 14901E carries part number Q49ESRNJH.

FAQ

Q: Which processor has a higher boost clock?

A: The Intel Core i9-14901E boosts to 5.60 GHz, while the Intel Core i9-12900T boosts to 4.90 GHz.

Q: Does the Intel Core i9-12900T support ECC memory?

A: No, the 12900T does not support ECC memory. The Intel Core i9-14901E does support ECC memory.

Q: What is the TDP difference between the two processors?

A: The Intel Core i9-12900T has a TDP of 35 watts, while the Intel Core i9-14901E has a TDP of 65 watts.

Q: Which processor wins in data compression benchmarks?

A: The Intel Core i9-12900T wins in PassMark data compression with a score of 345021 versus 288777 for the 14901E, a 19.5% advantage.

Q: How many cores and threads does each processor have?

A: The Intel Core i9-12900T has 16 cores and 24 threads. The Intel Core i9-14901E has 8 cores and 16 threads.

Q: Which processor has a higher single-thread PassMark score?

A: The Intel Core i9-14901E scores 4354 in PassMark single-thread, while the Intel Core i9-12900T scores 3810, giving the 14901E a 12.5% lead.