AMD Ryzen 5 8400F vs Intel Core 9 273PQE Comparison

The Verdict

The benchmark data is unambiguous: the Intel Core 9 273PQE wins every single head-to-head test recorded in the database, with 17 wins out of 17 comparisons. The AMD Ryzen 5 8400F does not claim a single victory in any of the measured workloads. The Intel part posts an average benchmark score of 66099, placing it in the 93rd percentile of all CPUs, while the AMD chip averages 25005, sitting in the 77th percentile.

In multi-threaded workloads, the Intel Core 9 273PQE is dramatically faster. The Cinebench R23 multicore result shows 39190 for the Intel processor versus 20851 for the AMD processor, a gap of 46.8 percent. That same 46.8 percent deficit appears across Cinebench R15, R20, and R23 multicore tests, indicating a consistent scaling advantage. The PassMark multithread score tells a similar story: 46107 versus 24389, a 47.1 percent difference.

Single-thread performance also favors the Intel chip, though by a smaller margin. The PassMark single-thread score is 4573 for the Intel part versus 3685 for the AMD part, a 19.4 percent advantage. In Cinebench R23 single-core, the Intel chip scores 5532 against 2943, a 46.8 percent lead. The Intel processor's 5.90 GHz boost clock versus the AMD's 4.70 GHz helps explain this advantage.

For buyers, the database suggests that the Intel Core 9 273PQE is the stronger choice for anyone prioritizing raw compute throughput, particularly in rendering, compression, encryption, and math-heavy tasks. The AMD Ryzen 5 8400F, with its lower core count and smaller cache, would be the pick only for someone who needs a 65 W TDP part with a 4 nm process node and an unlocked multiplier for overclocking. The AMD chip's 6 cores and 12 threads are half the Intel chip's 12 cores and 24 threads, which explains the consistent performance deficit in multi-threaded tests. The Intel part also supports ECC memory and includes integrated graphics, neither of which the AMD part offers.

FAQ

Q: Which CPU wins more benchmarks in the database?

A: The Intel Core 9 273PQE wins all 17 head-to-head comparisons against the AMD Ryzen 5 8400F. The AMD processor records zero wins.

Q: How large is the performance gap in multi-threaded workloads?

A: In Cinebench R23 multicore, the Intel part scores 39190 versus 20851 for the AMD part, a 46.8 percent deficit. PassMark multithread shows a 47.1 percent deficit (46107 versus 24389).

Q: Is the single-thread performance gap smaller?

A: Yes. The PassMark single-thread score shows a 19.4 percent deficit for the AMD part (3685 versus 4573). However, Cinebench R23 single-core shows a 46.8 percent deficit (2943 versus 5532).

Q: What are the core and thread counts for each processor?

A: The AMD Ryzen 5 8400F has 6 cores and 12 threads. The Intel Core 9 273PQE has 12 cores and 24 threads.

Q: Do either of these CPUs include integrated graphics?

A: The Intel Core 9 273PQE includes UHD Graphics 770. The AMD Ryzen 5 8400F has no integrated graphics (listed as N/A).

Q: Which processor supports ECC memory?

A: The Intel Core 9 273PQE supports ECC memory. The AMD Ryzen 5 8400F does not support ECC memory.

Architecture Differences

The two processors come from different process nodes and foundries. The AMD Ryzen 5 8400F is built on a 4 nm process at TSMC, using Zen 4 architecture with the Phoenix codename. The Intel Core 9 273PQE uses a 10 nm process at Intel, with the Bartlett Lake codename. The AMD chip packs 25,000 million transistors on a 178 mm² die, while the Intel part does not have transistor count or die size recorded in the database.

Cache hierarchies differ substantially. The AMD part provides 64 KB of L1 cache per core, 1 MB of L2 per core, and 16 MB of shared L3 cache. The Intel part offers 80 KB of L1 per core, 2 MB of L2 per core, and 36 MB of shared L3 cache. The larger per-core caches and more than double the L3 capacity give the Intel processor a structural advantage in workloads that benefit from cache locality.

Memory support is another divergence. The AMD chip supports only DDR5, while the Intel chip supports both DDR4 and DDR5. Both use a dual-channel memory bus, but the recorded memory bandwidth differs: 83.2 GB/s for the AMD part versus 89.6 GB/s for the Intel part. The Intel processor also supports ECC memory, which the AMD part does not.

PCIe capabilities differ as well. The AMD Ryzen 5 8400F uses PCIe Gen 4 with 20 lanes (CPU only). The Intel Core 9 273PQE uses PCIe Gen 5 with 16 lanes (CPU only).

The AMD processor has an unlocked multiplier, allowing overclocking, while the Intel processor is locked. The AMD chip is from the 8000 series, released on 2024-03-31, with part number 100-000001591. The Intel chip is from the Core 9 generation, released on 2026-03-08, with part number SA4Q9. The Intel part launches with a higher TDP of 125 W versus 65 W for the AMD part.

Specification Differences

The socket is a primary differentiator. The AMD Ryzen 5 8400F uses AMD Socket AM5, while the Intel Core 9 273PQE uses Intel Socket 1700.

Clock speeds differ significantly. The AMD part has a base clock of 4.20 GHz and a boost clock of 4.70 GHz. The Intel part has a base clock of 3.40 GHz but a boost clock of 5.90 GHz, giving it a 1.20 GHz higher maximum frequency.

Core and thread counts: 6 cores and 12 threads for the AMD part, 12 cores and 24 threads for the Intel part. That doubles the thread count for Intel.

TDP: 65 W for the AMD part, 125 W for the Intel part.

Cache: L1 is 64 KB per core for AMD versus 80 KB per core for Intel. L2 is 1 MB per core for AMD versus 2 MB per core for Intel. L3 is 16 MB shared for AMD versus 36 MB shared for Intel.

Memory: AMD supports DDR5 only; Intel supports DDR4 and DDR5. Memory bandwidth is 83.2 GB/s for AMD versus 89.6 GB/s for Intel. ECC memory is not supported on AMD but is supported on Intel.

PCIe: AMD uses Gen 4 with 20 lanes; Intel uses Gen 5 with 16 lanes.

Integrated graphics: AMD has none; Intel has UHD Graphics 770.

Multiplier: AMD is unlocked; Intel is locked.

Process node: 4 nm for AMD, 10 nm for Intel.

Foundry: TSMC for AMD, Intel for Intel.

Market segment is Desktop for both, and production status is Active for both.

Head-to-Head Benchmarks

The Intel Core 9 273PQE dominates every recorded comparison. The largest single gap appears in PassMark floating point math, where the Intel chip scores 125546 against 46217 for the AMD part, a 63.2 percent deficit. That is the widest margin in the entire head-to-head set.

PassMark integer math shows a 55 percent deficit: 164629 versus 74021. PassMark find prime numbers shows a 55.1 percent deficit (198 versus 89). PassMark physics shows a 51.6 percent deficit (2754 versus 1332). PassMark data compression shows a 50.8 percent deficit (585752 versus 288158). PassMark multithread shows a 47.1 percent deficit (46107 versus 24389).

The Cinebench suite is uniformly consistent. Cinebench R15 multicore: 3950 versus 2101, a 46.8 percent deficit. Cinebench R15 single-core: 557 versus 296, a 46.9 percent deficit. Cinebench R20 multicore: 16459 versus 8757, a 46.8 percent deficit. Cinebench R20 single-core: 2323 versus 1236, a 46.8 percent deficit. Cinebench R23 multicore: 39190 versus 20851, a 46.8 percent deficit. Cinebench R23 single-core: 5532 versus 2943, a 46.8 percent deficit.

PassMark extended instructions shows a 42.8 percent deficit (38743 versus 22175). PassMark data encryption shows a 43.8 percent deficit (29636 versus 16646). PassMark random string sorting shows the smallest gap among the PassMark tests at 34.9 percent (53167 versus 34604). PassMark single-thread shows the smallest overall gap at 19.4 percent (4573 versus 3685).

The Intel part's closest rival in the database is the Intel Core Ultra 5 250KF Plus, which is 0.1 percent ahead in average score. The AMD Ryzen 5 8400F's nearest rival is the AMD Ryzen 5 7500F, which is 0.2 percent ahead. The data confirms that the Intel Core 9 273PQE is not merely ahead of the AMD Ryzen 5 8400F, it is in a different performance class entirely, with an average score 2.64 times higher (66099 versus 25005).