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

The Verdict

The benchmark data separates these two desktop processors by workload character rather than by overall capability. The AMD Ryzen 5 8400F wins 13 of the 17 head-to-head comparisons, while the Intel Core 9 273PTE wins 4. However, the Intel part holds the higher percentile ranking at 82 versus 77 for the AMD, and its average benchmark score of 31143 exceeds the AMD's 25005. That gap in average score is driven by the Intel part's strong showings in specific math and physics tests, while the AMD part dominates in encryption, compression, and single-thread tasks.

The AMD Ryzen 5 8400F is the choice for workloads that emphasize data encryption, compression, extended instruction sets, and single-thread responsiveness. It leads by 16.8% in data encryption, 11.4% in data compression, and 39% in extended instructions. It also wins every Cinebench generation tested, from R15 through R23, in both single-core and multi-core modes, with margins of 2% to 2.1%. The Intel Core 9 273PTE is the choice for workloads that stress prime number finding, floating-point math, integer math, and physics simulation. It leads by 37.3% in prime numbers, 23.8% in floating-point math, 10.2% in integer math, and 30.5% in physics.

The neutral middle ground is occupied by the multi-thread and single-thread PassMark tests. The AMD part wins PassMark multithread by just 1.4% and PassMark single-thread by 7.3%. Users running a mix of general productivity tasks will see similar overall throughput, while users with specialized instruction patterns will see the larger deltas.

Architecture Differences

The two processors come from different foundries, nodes, and core designs. The AMD Ryzen 5 8400F uses the Zen 4 architecture on a 4 nm TSMC process with the Phoenix codename. It integrates 6 cores and 12 threads on a 178 mm² die containing 25,000 million transistors. The Intel Core 9 273PTE uses the Bartlett Lake codename on a 10 nm Intel process. It provides 12 cores and 24 threads. Intel does not report transistor count or die size for this part.

Cache configurations differ substantially. The AMD part provides 64 KB of L1 per core, 1 MB of L2 per core, and 16 MB of shared L3. The Intel part provides 80 KB of L1 per core, 2 MB of L2 per core, and 36 MB of shared L3. The Intel processor therefore has more aggregate cache at every level.

Memory support also diverges. The AMD part supports DDR5 only, with dual-channel memory and 83.2 GB/s of bandwidth. The Intel part supports both DDR4 and DDR5, also dual-channel, with 89.6 GB/s of bandwidth. ECC memory is supported on the Intel part but not on the AMD part.

PCIe connectivity differs. The AMD part uses Gen 4 with 20 lanes from the CPU. The Intel part uses Gen 5 with 16 lanes from the CPU. Integrated graphics are absent on the AMD part, while the Intel part includes UHD Graphics 730.

Clock behavior is distinct. 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 1.40 GHz and a boost clock of 5.50 GHz. The Intel part reaches a much higher boost frequency but starts from a much lower base. Power targets also differ: the AMD part has a 65 W TDP, while the Intel part has a 45 W TDP.

The AMD part uses AMD Socket AM5 and has an unlocked multiplier. The Intel part uses Intel Socket 1700 and has a locked multiplier. Release dates are separated by nearly two years: the AMD part launched on 2024-03-31, the Intel part on 2026-03-08. The Intel part carries a launch MSRP of $549, while the AMD part carries a launch MSRP of $170.

FAQ

Q: Which processor has more cores and threads?

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

Q: Does the Intel processor support ECC memory?

A: Yes, the Intel Core 9 273PTE supports ECC memory. The AMD Ryzen 5 8400F does not.

Q: Which processor has integrated graphics?

A: The Intel Core 9 273PTE includes UHD Graphics 730. The AMD Ryzen 5 8400F has no integrated graphics (N/A).

Q: Which processor wins the Cinebench R23 multi-core test?

A: The AMD Ryzen 5 8400F wins with a score of 20851 versus 20445 for the Intel Core 9 273PTE, a 2% margin.

Q: Which processor has a higher boost clock?

A: The Intel Core 9 273PTE has a boost clock of 5.50 GHz. The AMD Ryzen 5 8400F has a boost clock of 4.70 GHz.

Q: How large is the L3 cache on each processor?

A: The AMD Ryzen 5 8400F has 16 MB of shared L3. The Intel Core 9 273PTE has 36 MB of shared L3.

Specification Differences

The two processors differ in every core count, cache, memory, and platform category. The AMD Ryzen 5 8400F has 6 cores and 12 threads. The Intel Core 9 273PTE has 12 cores and 24 threads. Base clocks are 4.20 GHz for the AMD part and 1.40 GHz for the Intel part. Boost clocks are 4.70 GHz versus 5.50 GHz. TDP is 65 W for AMD and 45 W for Intel.

The AMD part uses the Zen 4 architecture with Phoenix codename. The Intel part uses Bartlett Lake codename. Process nodes are 4 nm (TSMC) for AMD and 10 nm (Intel) for Intel. The AMD die is 178 mm² with 25,000 million transistors; Intel reports no die size or transistor count.

L1 cache is 64 KB per core for AMD and 80 KB per core for Intel. L2 cache is 1 MB per core for AMD and 2 MB per core for Intel. L3 cache is 16 MB shared for AMD and 36 MB shared for Intel.

Memory support is DDR5 only for AMD versus DDR4 and DDR5 for Intel. Memory bandwidth is 83.2 GB/s for AMD versus 89.6 GB/s for Intel. ECC memory is false for AMD, true for Intel. PCIe is Gen 4 with 20 lanes for AMD versus Gen 5 with 16 lanes for Intel. Integrated graphics is N/A for AMD versus UHD Graphics 730 for Intel.

The AMD part has an unlocked multiplier; the Intel part does not. Sockets are AMD Socket AM5 versus Intel Socket 1700. The AMD part number is 100-000001591; the Intel part number is SA4QJ.

Head-to-Head Benchmarks

The AMD Ryzen 5 8400F wins all six Cinebench tests. In Cinebench R15 multi-core, it scores 2101 against 2060, a 2% lead. In R15 single-core, it scores 296 against 290, a 2.1% lead. In R20 multi-core, it scores 8757 against 8586, a 2% lead. In R20 single-core, it scores 1236 against 1212, a 2% lead. In R23 multi-core, it scores 20851 against 20445, a 2% lead. In R23 single-core, it scores 2943 against 2886, a 2% lead. These consistent margins indicate that the AMD part has a small but uniform advantage in both lightly threaded and fully threaded rendering workloads.

The AMD part also wins several PassMark tests by larger margins. In data encryption, it scores 16646 versus 14253, a 16.8% lead. In data compression, it scores 288158 versus 258704, an 11.4% lead. In extended instructions, it scores 22175 versus 15952, a 39% lead. In random string sorting, it scores 34604 versus 28973, a 19.4% lead. In single-thread tests, it scores 3685 versus 3433, a 7.3% lead. In the multithread test, it scores 24389 versus 24054, a narrower 1.4% lead.

The Intel Core 9 273PTE wins four PassMark tests with substantial margins. In find prime numbers, it scores 142 versus 89, a 37.3% lead. In floating-point math, it scores 60673 versus 46217, a 23.8% lead. In integer math, it scores 82411 versus 74021, a 10.2% lead. In physics, it scores 1917 versus 1332, a 30.5% lead.

The win distribution shows a clear pattern. The AMD part dominates in cryptography, compression, string handling, and single-thread execution. The Intel part dominates in raw arithmetic, prime number generation, and physics. The average benchmark scores reflect this split: the Intel part's 31143 average exceeds the AMD's 25005, but the AMD part holds the advantage in the majority of individual tests. The Intel part's nearest rival is the Intel Core i7-12700F at 31081 (0.2% delta), while the AMD part's nearest rival is the AMD Ryzen 5 7500F at 24964 (0.2% delta). Both parts sit near their closest competitors, confirming that their positioning in the broader database aligns with their measured performance profiles.