AMD Ryzen 5 8400F vs Intel Core i5-13400 Comparison

The Intel Core i5-13400 and AMD Ryzen 5 8400F present a fascinating split in the benchmark database, with the AMD part winning 14 of the 23 recorded head-to-head tests against Intel’s 9 victories. This is not a case of a clear overall champion but rather a study in contrasting architectural priorities, where the final choice depends heavily on the specific workload. The data reveals that Intel’s hybrid design dominates heavily threaded and floating-point tasks, while AMD’s newer Zen 4 cores excel in single-threaded and latency-sensitive operations.

Where Each One Wins

The Intel Core i5-13400 asserts its dominance in scenarios that leverage its physical core advantage and architectural design. The most decisive win for Intel is in the PassMark floating point math test, where it scores 58,786 against AMD’s 46,217, a substantial 27.2% lead. This advantage is also clear in the 3DMark 16-thread test, where Intel scores 7,315 versus 6,091, a 20.1% delta, and in the 3DMark max-threads test, where it wins by 18.6% (7,310 versus 6,165). These results indicate that the Intel chip is the stronger choice for rendering, physics simulations, and other workloads that scale aggressively with thread count and require heavy mathematical throughput.

Conversely, the AMD Ryzen 5 8400F wins the majority of the head-to-head confrontations, particularly in benchmarks that stress single-core performance and instruction-level efficiency. The most striking example is the Cinebench R23 single-core test, where AMD scores 2,943 against Intel’s 1,786, an enormous 39.3% advantage. This trend continues in the Cinebench R15 single-core test, where AMD wins by 13.2%, and in the PassMark single-thread test, where AMD leads by 4% (3,685 versus 3,538). The AMD processor also wins in the PassMark extended instructions test by 13.6% and in the PassMark random string sorting test by 10.8%, suggesting superior branch prediction and memory access patterns for certain algorithmic loads.

Architecture Differences

The underlying hardware explains the benchmark divergence. The Intel Core i5-13400 is built on Intel’s 10 nm process and employs a hybrid architecture using Raptor Lake cores. It features 10 cores and 16 threads, with a base clock of 2.50 GHz and a boost clock of 4.60 GHz. Its cache hierarchy is more generous in total capacity, with an 80 KB L1 cache per core, 1.25 MB L2 per core, and a shared 20 MB L3 cache. The CPU is paired with Intel Socket 1700 and supports both DDR4 and DDR5 memory through a dual-channel bus.

The AMD Ryzen 5 8400F, in contrast, is manufactured on a more advanced 4 nm process by TSMC, using the Zen 4 architecture codenamed Phoenix. It has fewer cores, with 6 cores and 12 threads, but runs at much higher base clocks of 4.20 GHz and boost clocks of 4.70 GHz. Its cache is smaller per core, with 64 KB L1 and 1 MB L2, and its shared L3 cache is 16 MB. The AMD part is limited to DDR5 memory support but offers a higher memory bandwidth of 83.2 GB/s compared to Intel’s unspecified figure. Additionally, the AMD chip supports PCIe Gen 4 with 20 lanes, while Intel provides PCIe Gen 5 with 16 lanes. The AMD processor also has an unlocked multiplier, whereas the Intel part is locked, and AMD includes no integrated graphics, while Intel includes UHD Graphics 730.

The Verdict

The recorded data points to a clear use-case separation. For users running heavily multi-threaded productivity workloads, such as video editing, 3D rendering, or complex data analysis, the Intel Core i5-13400 is the superior choice. Its 20.1% and 18.6% wins in the 16-thread and max-thread 3DMark tests, along with its 27.2% lead in floating-point math, demonstrate a robust capability for parallel processing. The Intel chip also wins the Cinebench R15 multicore test by 12.2% and the PassMark data compression test by 4.6%, solidifying its position for content creation.

For users prioritizing single-threaded responsiveness, gaming, or applications that rely on quick instruction execution, the AMD Ryzen 5 8400F is the better option. The 39.3% lead in Cinebench R23 single-core is a monumental advantage, and its wins in PassMark single-thread, extended instructions, and random string sorting indicate a more efficient core design. The AMD processor also wins the PassMark multithread test by 2.7%, despite having fewer cores, which underscores the efficiency of its Zen 4 architecture. The database’s overall percentile ranking reflects this: AMD sits at the 77th percentile while Intel is at the 76th, and AMD’s average benchmark score of 25,005 slightly exceeds Intel’s 24,280.

FAQ

Q: Which processor has the higher single-core performance?

A: The AMD Ryzen 5 8400F is significantly ahead. In the Cinebench R23 single-core test, it scores 2,943 versus Intel’s 1,786, a 39.3% advantage. It also wins the PassMark single-thread test with 3,685 against 3,538.

Q: Is the Intel Core i5-13400 better for multi-threaded workloads?

A: The data is mixed but generally favors Intel for specific heavy multi-threading. Intel wins the 3DMark 16-thread test by 20.1% and the max-threads test by 18.6%. However, AMD wins the Cinebench R23 multicore test by 23.5% and the PassMark multithread test by 2.7%, showing the AMD chip is not weak in this area.

Q: Which CPU has more cores and threads?

A: The Intel Core i5-13400 has 10 cores and 16 threads. The AMD Ryzen 5 8400F has 6 cores and 12 threads.

Q: What is the difference in memory support?

A: The Intel Core i5-13400 supports both DDR4 and DDR5 memory. The AMD Ryzen 5 8400F supports only DDR5 memory. Both use a dual-channel bus, but AMD’s memory bandwidth is listed at 83.2 GB/s, while Intel’s is not specified.

Q: Does either processor include integrated graphics?

A: The Intel Core i5-13400 includes UHD Graphics 730. The AMD Ryzen 5 8400F does not include any integrated graphics, as its integrated graphics field is listed as N/A.

Q: Which processor has a higher boost clock?

A: The AMD Ryzen 5 8400F has a higher boost clock at 4.70 GHz, while the Intel Core i5-13400 boosts up to 4.60 GHz. The AMD chip also has a much higher base clock at 4.20 GHz versus 2.50 GHz.

Head-to-Head Benchmarks

The most decisive victory for the AMD Ryzen 5 8400F occurs in the Cinebench R23 single-core test. AMD’s score of 2,943 dwarfs Intel’s 1,786, resulting in a 39.3% delta. This is the largest single benchmark gap in the entire dataset. The Cinebench R23 multicore test also strongly favors AMD, with a score of 20,851 against Intel’s 15,953, a 23.5% lead. These two results alone suggest that the Zen 4 architecture offers a substantial generational leap in instructions per clock, even when outnumbered in core count.

The Intel Core i5-13400 strikes back with its own set of commanding victories. Its win in the PassMark floating point math test is the second-largest margin, with Intel scoring 58,786 against AMD’s 46,217, a 27.2% delta. In the 3DMark 16-thread test, Intel scores 7,315 versus 6,091, a 20.1% advantage, and in the 3DMark max-threads test, it wins by 18.6% with a score of 7,310 versus 6,165. These results indicate that Intel’s additional cores (10 versus 6) and threads (16 versus 12) provide a tangible benefit for workloads that can fully utilize them.

The remaining benchmarks reveal a pattern of narrow but consistent wins for AMD. In the PassMark extended instructions test, AMD wins by 13.6%, and in the PassMark find prime numbers test, it wins by 16.9%. AMD also takes the PassMark random string sorting test by 10.8% and the PassMark physics test by 6.6%. Intel manages narrower wins in the PassMark integer math test (5%), the 3DMark 8-thread test (6%), and the PassMark data compression test (4.6%). The 3DMark 2-thread and 3DMark single-thread tests are extremely close, with Intel winning by 0.5% and 0.8% respectively, while AMD wins the 3DMark 4-thread test by 2.9%. The final tally shows AMD winning 14 tests to Intel’s 9.

Specification Differences

The two processors differ substantially in almost every physical and technical specification. The Intel Core i5-13400 uses the Raptor Lake architecture on a 10 nm process from Intel, while the AMD Ryzen 5 8400F uses the Zen 4 (Phoenix) architecture on a 4 nm process from TSMC. Intel’s die size is 215 mm², while AMD’s is 178 mm², and AMD lists 25,000 million transistors, while Intel does not provide a transistor count. The core and thread counts differ, with Intel offering 10 cores and 16 threads versus AMD’s 6 cores and 12 threads. Base clocks are drastically different: Intel runs at 2.50 GHz, while AMD runs at 4.20 GHz. Boost clocks are closer, at 4.60 GHz for Intel and 4.70 GHz for AMD. Both have a 65 W TDP.

Cache configurations also diverge. Intel has an 80 KB L1 cache per core and 1.25 MB L2 per core, while AMD has 64 KB L1 and 1 MB L2 per core. Intel’s shared L3 cache is 20 MB, while AMD’s is 16 MB. Memory support differs, with Intel supporting both DDR4 and DDR5, while AMD supports only DDR5. The PCIe interface differs as well: Intel provides Gen 5 with 16 lanes, while AMD provides Gen 4 with 20 lanes. The sockets are incompatible: Intel uses Socket 1700, while AMD uses Socket AM5. Intel includes integrated graphics (UHD Graphics 730), while AMD does not. The AMD multiplier is unlocked, while Intel’s is not. Intel’s launch MSRP is $221, and AMD’s is $170, with Intel releasing in January 2023 and AMD in March 2024.