Intel Core i7-14700T vs Intel Core i9-12900 Comparison

The Intel Core i9-12900 and Intel Core i7-14700T represent two distinct approaches to desktop processing within the same physical socket. The data shows a clear split: the i9-12900 dominates in older Cinebench R15/R20 multi-core workloads and a majority of PassMark tests, while the i7-14700T delivers decisive victories in Cinebench R23 and specific single-core tasks. This comparison highlights how generational architecture shifts and power targets alter performance profiles.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core i7-14700T has 20 cores and 28 threads, while the Intel Core i9-12900 has 16 cores and 24 threads.

Q: How do their boost clocks compare?

A: The i7-14700T reaches a boost clock of 5.20 GHz, slightly ahead of the i9-12900's 5.10 GHz.

Q: Which CPU wins in Cinebench R23 multi-core?

A: The Intel Core i7-14700T wins decisively with a score of 25980 versus the i9-12900's 18628, a 28.3% advantage.

Q: What are their average benchmark scores?

A: The i9-12900 has an average benchmark score of 42906, while the i7-14700T scores 41914.

Q: Do both processors support ECC memory?

A: Yes, both the Intel Core i9-12900 and Intel Core i7-14700T list ECC memory as supported.

Q: What is the TDP difference?

A: The i9-12900 has a TDP of 65 watts, while the i7-14700T has a TDP of 35 watts.

Architecture Differences

The two processors come from different generations and microarchitectures. The i9-12900 is built on Alder Lake-S, the 12th Gen Core architecture, while the i7-14700T uses Raptor Lake-R, part of the 14th Gen Raptor Lake Refresh. Both are manufactured on a 10 nm process by Intel, but the die size differs: the i9-12900 measures 215 mm², while the i7-14700T is larger at 257 mm².

The core topology is a major differentiator. The i9-12900 packs 16 cores and 24 threads, whereas the i7-14700T expands to 20 cores and 28 threads. This additional core count is paired with a larger L2 cache: the i9-12900 has 1.25 MB per core, while the i7-14700T has 2 MB per core. The L3 cache also grows from 30 MB shared on the i9-12900 to 33 MB shared on the i7-14700T. Both maintain the same 80 KB L1 cache per core.

Clock speeds reveal the power-oriented design of the i7-14700T. Its base clock is significantly lower at 1.30 GHz versus the i9-12900's 2.40 GHz, a trade-off for its 35-watt TDP. However, the boost clock is higher on the i7-14700T at 5.20 GHz compared to 5.10 GHz, allowing it to reach higher peaks when needed. The i9-12900 has an unlocked multiplier, while the i7-14700T is locked.

Memory support is identical on the surface: both support DDR4 and DDR5 in dual-channel mode. The i9-12900 lists a memory bandwidth of 76.8 GB/s, while the i7-14700T does not record a bandwidth figure. Both use the same Intel Socket 1700, offer PCIe Gen 5 with 16 lanes (CPU only), and integrate UHD Graphics 770. The i7-14700T was released later, in January 2024, versus January 2022 for the i9-12900. The i9-12900 carries a launch MSRP of $519, while the i7-14700T carries a launch MSRP of $384.

Head-to-Head Benchmarks

The benchmark data records 17 head-to-head comparisons, with the i9-12900 winning 12 and the i7-14700T winning 5. The victories are not evenly distributed across workload types.

The i9-12900's largest win comes in Cinebench R15 multi-core, where it scores 3299 against the i7-14700T's 2618, a 26% advantage. This pattern continues in Cinebench R20 multi-core, though with a smaller margin: 11994 versus 10911, a 9.9% lead. PassMark tests also favor the i9-12900 broadly. Data compression shows a 15.2% edge (407899 versus 354216), extended instructions a 23.6% edge (24777 versus 20052), and floating point math a 15.8% edge (91514 versus 79042). Integer math follows with a 12% lead (127512 versus 113854), and multithread performance records a 9.9% advantage (33608 versus 30571). Random string sorting adds a 14.3% win (44070 versus 38546), and data encryption shows a 9.1% lead (23203 versus 21277). Even single-thread PassMark scores favor the i9-12900 slightly, at 4003 versus 3905, a 2.5% margin.

The i7-14700T counters with its most dramatic result in Cinebench R23 multi-core. It scores 25980 against the i9-12900's 18628, a commanding 28.3% lead. Single-core performance in Cinebench R23 is even more lopsided: the i7-14700T scores 3667 versus 1825, a 50.2% advantage. Cinebench R15 single-core also goes to the i7-14700T (369 versus 262, a 29% lead), and PassMark physics shows an 11.1% win (1946 versus 1730). Prime number finding completes the i7-14700T's wins with a 16.6% edge (145 versus 121).

The mixed results are notable in Cinebench R20 single-core, where the i9-12900 wins with 1693 versus 1540, a 9.9% lead, despite losing the other single-core tests. This inconsistency suggests that the specific instruction mix and power management behavior differ across benchmark versions.

Specification Differences

| Specification | Intel Core i9-12900 | Intel Core i7-14700T |

|----------------|---------------------|----------------------|

| Cores | 16 | 20 |

| Threads | 24 | 28 |

| Base Clock | 2.40 GHz | 1.30 GHz |

| Boost Clock | 5.10 GHz | 5.20 GHz |

| TDP | 65 W | 35 W |

| Architecture | Alder Lake | Raptor Lake |

| Codename | Alder Lake-S | Raptor Lake-R |

| Process Node | 10 nm | 10 nm |

| Die Size | 215 mm² | 257 mm² |

| L2 Cache | 1.25 MB (per core) | 2 MB (per core) |

| L3 Cache | 30 MB (shared) | 33 MB (shared) |

| Memory Bandwidth | 76.8 GB/s | Not recorded |

| Release Date | January 2022 | January 2024 |

| Launch MSRP | $519 | $384 |

| Multiplier | Unlocked | Locked |

The table shows that both CPUs share the socket, memory types, integrated graphics, and PCIe configuration. The differences center on core counts, cache sizes, clock strategies, and power envelopes. The i7-14700T sacrifices base clock and TDP headroom for more cores and a higher boost clock. The i9-12900 compensates with a higher base clock and a larger recorded memory bandwidth.

The Verdict

The data supports a clear split based on workload and power priorities. The Intel Core i9-12900 is the stronger choice for tasks that rely on older multi-threaded benchmarks and a broad range of integer and floating-point operations. Its wins in 12 of 17 head-to-head tests, including a 26% margin in Cinebench R15 multi-core and a 23.6% margin in PassMark extended instructions, make it a reliable performer for legacy software and mixed productivity workloads. Its 88th percentile ranking places it above the i7-14700T in overall standing, and its average benchmark score of 42906 is 2.4% higher than the i7-14700T's 41914.

The Intel Core i7-14700T is the better option for modern multi-threaded applications and highly clock-sensitive single-threaded tasks. Its 28.3% lead in Cinebench R23 multi-core and 50.2% lead in Cinebench R23 single-core are the largest margins in the comparison. The 35-watt TDP also makes it suitable for power-constrained builds without requiring the cooling infrastructure of a 65-watt part. However, its lower base clock of 1.30 GHz and losses in most PassMark categories indicate it cannot sustain performance in older or less optimized workloads as effectively.

Users with a mix of legacy applications and general desktop tasks should favor the i9-12900. Users prioritizing the latest rendering workloads, single-core responsiveness, and power efficiency should select the i7-14700T. The launch MSRP of $384 for the i7-14700T versus $519 for the i9-12900 may factor into the decision, but the recorded performance differences should be weighed against specific application requirements. Both processors occupy the same 88th percentile tier, so the choice ultimately hinges on whether the i7-14700T's Cinebench R23 dominance matters more than the i9-12900's broader PassMark consistency.