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

Head-to-Head Benchmarks

The recorded benchmark data shows a decisive overall advantage for the Intel Core 9 273PE, which wins 15 of the 17 head-to-head comparisons. The AMD Ryzen 5 8400F wins only 2, both in the PassMark single-thread tests, where it scores 3685 against Intel's 3650, a 1% margin. That is the only category where the AMD part leads, and the margin is narrow enough to be within typical run-to-run variance.

Every Cinebench result favors Intel by a nearly uniform margin. In Cinebench R15 multicore, the Intel scores 3153 against AMD's 2101, a 33.4% advantage. The R15 single-core result shows 445 versus 296, a 33.5% gap. The R20 multicore test repeats the pattern: 13140 versus 8757, again 33.4%. R20 single-core follows with 1855 versus 1236, another 33.4% gap. Cinebench R23 multicore delivers 31288 against 20851, and R23 single-core delivers 4417 against 2943, both at 33.4%. The consistency of that 33.4% delta across all Cinebench workloads suggests a fixed architectural advantage rather than workload-specific behavior.

The PassMark suite shows even larger deltas in several compute-heavy tests. Floating point math is a major win for Intel: 107884 versus 46217, a 57.2% advantage. Physics tests show 3120 versus 1332, a 57.3% gap, the largest single delta in the entire comparison. Prime number finding shows 203 versus 89, a 56.2% gap. Integer math delivers 139410 versus 74021, a 46.9% advantage. The data compression test shows 405885 versus 288158, a 29% gap. Data encryption favors Intel at 22719 versus 16646, a 26.7% gap. Random string sorting shows 45098 versus 34604, a 23.3% gap. Extended instructions favor Intel by 10%, with 24630 versus 22175. The PassMark multithread score shows 36810 versus 24389, a 33.7% gap, closely matching the Cinebench multicore deltas.

The only tests where the AMD part wins are the two identical single-thread PassMark entries, both showing 3685 versus 3650. That 1% lead is negligible in practical terms. The Intel part's overall average benchmark score is 49845, while the AMD part averages 25005, meaning Intel's average is roughly double. The Intel processor sits at the 90th percentile versus all CPUs in the database, while the AMD processor sits at the 77th percentile.

Architecture Differences

The two processors come from fundamentally different design lineages. The AMD Ryzen 5 8400F uses the Zen 4 architecture on the Phoenix codename, built on a 4 nm process at TSMC. The Intel Core 9 273PE uses the Bartlett Lake codename, built on a 10 nm process at Intel's own foundry. AMD's process node advantage is significant on paper, but the benchmark results do not reflect a corresponding performance benefit.

Core counts differ substantially. The AMD part has 6 cores and 12 threads, while the Intel part has 12 cores and 24 threads, exactly double in both counts. Cache configurations also diverge. AMD provides 64 KB of L1 per core, 1 MB of L2 per core, and 16 MB of shared L3. Intel provides 80 KB of L1 per core, 2 MB of L2 per core, and 36 MB of shared L3. The larger per-core L1 and L2 caches, combined with more than double the L3 capacity, contribute to Intel's lead in cache-sensitive workloads like data compression and integer math.

Clock behavior differs in an interesting way. AMD's base clock is 4.20 GHz with a boost of 4.70 GHz, a relatively narrow boost range. Intel's base clock is 2.30 GHz, but the boost reaches 5.70 GHz, a much wider range. The data suggests Intel's boost architecture extracts more performance from similar 65 W TDP envelopes. Both parts are rated at 65 W TDP, yet Intel delivers far higher multicore and single-core scores.

Memory support diverges. AMD supports only DDR5, while Intel supports both DDR4 and DDR5. Memory bandwidth figures show Intel at 89.6 GB/s versus AMD's 83.2 GB/s. Intel also supports ECC memory, while AMD does not. The PCIe interface differs: AMD offers Gen 4 with 20 lanes from the CPU, while Intel offers Gen 5 with 16 lanes from the CPU. Intel's integrated graphics are present as UHD Graphics 730, while AMD lists no integrated graphics.

The AMD part has an unlocked multiplier, meaning it can be overclocked. The Intel part has a locked multiplier, so it cannot. The AMD part launched with an MSRP of $170, while the Intel part launched with an MSRP of $549. The AMD part releases on 2024-03-31, and the Intel part releases on 2026-03-08.

The Verdict

The benchmark data is unambiguous: the Intel Core 9 273PE outperforms the AMD Ryzen 5 8400F in every multicore-heavy workload recorded. The 33.4% Cinebench R23 multicore advantage, the 57.2% floating-point advantage, and the 46.9% integer math advantage all point to a processor that delivers substantially more compute throughput. The Intel part's average benchmark score of 49845 versus AMD's 25005 confirms the gap at a summary level.

The AMD part holds a 1% lead in PassMark single-thread performance, but that is the only category where it wins. For workloads that rely on single-threaded execution, the two are effectively tied. For everything else, Intel wins by margins ranging from 10% to over 57%.

The Intel part's 90th percentile ranking versus all CPUs places it well above the AMD part's 77th percentile. Its nearest rivals in the database include the AMD Ryzen AI Max+ 388, with a delta of 0.1%, and the Intel Core i9-13980HX at -1.1%. The AMD part's nearest rivals include the AMD Ryzen 5 7500F at 0.2% and the Intel Core i7-13620H at 0.4%, meaning the AMD part sits in a much lower performance tier.

The AMD option offers an unlocked multiplier and a lower launch MSRP, which the database records as $170 versus $549 for Intel. However, the performance data shows Intel delivering roughly double the average benchmark score. The Intel part also provides ECC memory support, DDR4 compatibility for older platforms, integrated graphics, and PCIe Gen 5 connectivity. The AMD part provides a 4 nm process and a smaller die, but those manufacturing details do not translate into benchmark wins.

For users who prioritize raw compute throughput, the Intel part is the clear choice based on the recorded data. For users who prioritize single-thread performance, the difference is effectively negligible. The AMD part's only advantages are the unlocked multiplier and the lower launch MSRP. There is no benchmark category in the database where AMD wins by a meaningful margin.

Specification Differences

The two parts differ in nearly every specification field. The AMD Ryzen 5 8400F has 6 cores and 12 threads, while the Intel Core 9 273PE has 12 cores and 24 threads. Base clocks are 4.20 GHz versus 2.30 GHz, but boost clocks are 4.70 GHz versus 5.70 GHz. Both are rated at 65 W TDP. AMD uses Socket AM5, Intel uses Socket 1700.

The process node is 4 nm for AMD versus 10 nm for Intel. AMD's foundry is TSMC, Intel's is Intel. AMD lists 25,000 million transistors and a 178 mm² die size; Intel does not list either figure. L1 cache is 64 KB per core for AMD versus 80 KB per core for Intel. L2 is 1 MB per core versus 2 MB per core. L3 is 16 MB shared versus 36 MB shared.

Memory support: AMD supports DDR5 only, Intel supports DDR4 and DDR5. Both use dual-channel memory buses, but Intel's bandwidth is 89.6 GB/s versus AMD's 83.2 GB/s. ECC memory is unsupported on AMD and supported on Intel. PCIe: AMD offers Gen 4 with 20 lanes, Intel offers Gen 5 with 16 lanes. Integrated graphics: none for AMD, UHD Graphics 730 for Intel. AMD's multiplier is unlocked, Intel's is locked.

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Core 9 273PE has an average benchmark score of 49845, while the AMD Ryzen 5 8400F has an average of 25005.

Q: Does the AMD part win any benchmark comparisons?

A: Yes, the AMD Ryzen 5 8400F wins the PassMark single-thread test with 3685 versus Intel's 3650, a 1% advantage. That appears in two identical entries in the head-to-head data.

Q: What is the largest single benchmark delta between the two?

A: The PassMark physics test shows the largest gap. Intel scores 3120 against AMD's 1332, a 57.3% advantage.

Q: How do the core counts compare?

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

Q: Do both processors support the same memory types?

A: No. The AMD part supports only DDR5. The Intel part supports both DDR4 and DDR5. Intel also supports ECC memory, which AMD does not.

Q: Are both processors currently active in production?

A: Yes, the database lists both the AMD Ryzen 5 8400F and the Intel Core 9 273PE as having active production status.