AMD Ryzen 7 5700X3D vs Intel Core i5-13400 Comparison

Head-to-Head Benchmarks

The benchmark data reveals a surprisingly split decision between the Intel Core i5-13400 and the AMD Ryzen 7 5700X3D. The Intel chip secures 12 wins, while the AMD part takes 13, but the margins and the nature of those wins tell a more nuanced story than the raw tally suggests.

Intel’s most decisive victories come in single-threaded and lightly-threaded workloads. In the 3DMark suite, the i5-13400 dominates the single-thread test with a score of 959 versus 804, a 19.3% advantage. The 2-thread test shows an even larger gap: 1883 against 1575, a 19.6% lead for Intel. This pattern extends to the PassMark single-thread test, where Intel posts 3538 versus AMD’s 2970, another 19.1% win. Geekbench single-core also favors Intel, 2112 to 1849, a 14.2% margin. These results indicate that for applications relying on low thread counts, the i5-13400’s higher boost clock of 4.60 GHz provides a tangible edge over the 5700X3D’s 4.10 GHz.

Intel also flexes its muscles in floating-point math. The PassMark floating-point test shows a massive 26.4% lead for Intel, with scores of 58786 versus 46492. This is the largest single delta in Intel’s favor across the entire benchmark suite. The 4-thread 3DMark test also goes to Intel by 11.8% (3461 vs 3097), and the 8-thread test by 4.4% (5592 vs 5357). Even the 16-thread and max-thread 3DMark tests, which should theoretically favor the AMD part’s larger cache, go to Intel by 8.1% and 8.2% respectively. Geekbench multicore adds another Intel win, 12289 versus 11086, a 10.9% margin.

However, the AMD Ryzen 7 5700X3D strikes back decisively in Cinebench and other heavily multi-threaded or cache-sensitive workloads. The most dramatic result is Cinebench R23 single-core, where AMD wins with 3157 versus Intel’s 1786, a staggering 43.4% lead. This is counterintuitive given Intel’s single-thread wins elsewhere, but the Cinebench R23 single-core test clearly favors the AMD architecture’s IPC. The Cinebench R23 multicore test also goes to AMD, 22366 versus 15953, a 28.7% margin. Cinebench R20 follows suit: AMD wins multicore 9393 to 8526 (9.2%) and single-core 1325 to 1203 (9.2%). Cinebench R15 is closer, with Intel winning multicore 2358 to 2254 (4.6%), but AMD taking single-core 318 to 257 (19.2%).

The 5700X3D’s 96 MB of shared L3 cache appears to pay dividends in specific computational patterns. PassMark physics shows AMD winning by a massive 53.7% (2686 vs 1244). The find-prime-numbers test is even more lopsided: AMD scores 224 versus Intel’s 74, a 67% advantage. PassMark data encryption also goes to AMD, 18788 versus 15880, a 15.5% win. Extended instructions favor AMD by 9.6% (21202 vs 19161), and integer math goes to AMD by 4.4% (81257 vs 77721). The PassMark multithread test shows AMD ahead 26318 to 23719, a 9.9% margin. Data compression and random string sorting are narrow AMD wins, at 1.9% and 2.0% respectively.

The Verdict

The data presents two distinct profiles. The Intel Core i5-13400 is the clear choice for workloads that are latency-sensitive or lightly threaded. Its 19.6% lead in the 2-thread 3DMark test and 19.1% in PassMark single-thread demonstrate a decisive advantage in everyday responsiveness and older or less-optimized applications. The 26.4% win in floating-point math also makes it the preferred part for scientific computing or financial modeling tasks that rely heavily on FPU throughput.

The AMD Ryzen 7 5700X3D, conversely, is the pick for sustained multi-threaded rendering and cache-heavy workloads. The 28.7% lead in Cinebench R23 multicore and the 53.7% win in PassMark physics are not marginal; they represent substantial performance gaps. The 67% advantage in prime-number finding suggests the 3D V-Cache technology is exceptionally effective for algorithms with large working sets that exceed the i5-13400’s 20 MB L3 cache. The 5700X3D’s higher overall average benchmark score of 24709 versus 24280, along with its 77th percentile versus Intel’s 76th, reinforces that the AMD part is the more balanced performer across the entire test suite.

For a general-purpose desktop where the user prioritizes snappy single-threaded performance and mainstream gaming, the Intel i5-13400 is objectively the better choice based on the benchmark deltas. For a workstation or a user who regularly renders video, compiles code, or runs physics simulations, the AMD Ryzen 7 5700X3D delivers measurably superior performance. The choice is not about which chip is "faster" overall, but which workload profile matches the user’s primary use case. If forced to pick one based solely on the aggregate data, the AMD part edges ahead due to its higher average score and a larger number of wins, but the Intel chip’s commanding lead in single-thread tests cannot be ignored.

FAQ

Q: Which CPU has a higher single-thread score in PassMark?

A: The Intel Core i5-13400 wins decisively with a score of 3538, compared to the AMD Ryzen 7 5700X3D’s 2970, a 19.1% advantage.

Q: How much faster is the AMD Ryzen 7 5700X3D in Cinebench R23 multicore?

A: The AMD part scores 22366 versus Intel’s 15953, which translates to a 28.7% lead in that specific test.

Q: Which processor has a higher average benchmark score?

A: The AMD Ryzen 7 5700X3D has an average benchmark score of 24709, while the Intel Core i5-13400 averages 24280. The AMD chip also holds a slightly higher percentile rank at 77 versus Intel’s 76.

Q: In what test does the Intel chip have its largest margin of victory?

A: Intel’s biggest win is in the PassMark floating-point math test, where it scores 58786 versus AMD’s 46492, a 26.4% difference.

Q: Does the AMD Ryzen 7 5700X3D support ECC memory?

A: Yes, the AMD Ryzen 7 5700X3D supports ECC memory. The Intel Core i5-13400 does not have ECC support.

Q: What is the difference in L3 cache size between the two?

A: The AMD Ryzen 7 5700X3D has 96 MB of shared L3 cache, while the Intel Core i5-13400 has 20 MB of shared L3 cache.

Specification Differences

The two processors differ significantly in their core configurations and platform requirements. The Intel Core i5-13400 packs 10 cores and 16 threads, while the AMD Ryzen 7 5700X3D offers 8 cores but also 16 threads. Intel’s base clock is 2.50 GHz with a boost up to 4.60 GHz; AMD’s base clock is higher at 3.00 GHz, but its boost is lower at 4.10 GHz. The rated TDP also diverges, with Intel at 65 W and AMD at 105 W.

Platform support is a major differentiator. The Intel chip uses the LGA 1700 socket, while the AMD part uses the AM4 socket. Memory support also differs: Intel supports both DDR4 and DDR5, whereas AMD is limited to DDR4. Both use dual-channel memory buses, but the AMD chip has a specified memory bandwidth of 51.2 GB/s, a figure not listed for Intel. ECC memory is supported on the AMD chip but not on the Intel chip. PCIe capabilities also differ, with Intel offering Gen 5 with 16 CPU lanes and AMD offering Gen 4 with 20 CPU lanes.

Integrated graphics present another distinction. The Intel Core i5-13400 includes UHD Graphics 730, while the AMD Ryzen 7 5700X3D has no integrated graphics (N/A). Both chips have locked multipliers, meaning they are not unlocked for overclocking. The production status is "Active" for both, and both are desktop market segments. The launch MSRP for the Intel part is $221, and for the AMD part it is $249.

Architecture Differences

The architectural divide between these two processors is profound. The Intel Core i5-13400 is built on Raptor Lake, a 10 nm process node manufactured by Intel itself, with a die size of 215 mm². In contrast, the AMD Ryzen 7 5700X3D is based on Zen 3 (codename Vermeer), fabricated on a 7 nm process by TSMC, with a die size of just 74 mm². AMD’s chip contains 8,850 million transistors; Intel’s transistor count is not listed.

Cache hierarchies differ dramatically. Intel’s L1 cache is 80 KB per core, with 1.25 MB of L2 per core, and 20 MB of shared L3. AMD’s L1 is smaller at 64 KB per core, L2 is 512 KB per core, but the L3 is a massive 96 MB shared pool. This 76 MB difference in L3 cache is the defining feature of the 5700X3D, enabled by AMD’s 3D V-Cache technology, which stacks additional cache die. The Intel chip has no equivalent technology.

The memory controllers reflect the platform architectures. Intel supports both DDR4 and DDR5, allowing for flexibility between older and newer memory standards. AMD is restricted to DDR4, which is consistent with the older AM4 platform. PCIe generations also differ, with Intel supporting Gen 5 for its 16 CPU lanes, while AMD supports Gen 4 for its 20 lanes. The presence of integrated graphics on Intel versus its absence on AMD also marks a fundamental architectural difference, with Intel embedding the UHD Graphics 730 die, whereas AMD relies on a discrete GPU for display output. The release dates also differ, with Intel launching on 2023-01-03 and AMD on 2024-01-07, though both are currently in active production.