Intel Core i5-11600 vs Intel Core i5-13400 Comparison

The Intel Core i5-11600 and Intel Core i5-13400 represent two distinct generations of Intel’s mainstream desktop lineup, separated by a significant architectural shift. The benchmark data reveals a largely one-sided contest, with the newer Raptor Lake part dominating the older Rocket Lake silicon across nearly every workload measured. However, one notable single-threaded exception prevents this from being a complete sweep, and the underlying specifications explain why the 13400’s victory is so comprehensive.

Head-to-Head Benchmarks

The head-to-head results are unambiguous: the Core i5-13400 wins 16 of the 17 benchmark comparisons. The most decisive margin comes in PassMark’s floating-point math test, where the 13400 scores 58,786 against the 11600’s 35,478, a 39.6% advantage. This is the largest delta in the entire dataset, indicating a substantial improvement in raw FPU throughput. Integer math tells a similar story, with the 13400’s 77,721 outclassing the 11600’s 60,158 by 22.6%. These results point to a generational leap in per-core execution resources and memory subsystem efficiency.

In multi-core rendering workloads, the 13400’s advantage is consistent but varies by test version. In Cinebench R15 multi-core, the 13400 posts 2,358 against the 11600’s 1,538, a 34.8% lead. Cinebench R20 multi-core shows a 24.8% gap (8,526 vs. 6,412), while the R23 multi-core test narrows the difference to just 4.3% (15,953 vs. 15,269). The R23 result is surprisingly close for a processor with four more cores, suggesting that the 11600’s higher boost clock of 4.80 GHz helps it stay competitive in this specific workload, even with fewer physical cores.

The single-core picture is more nuanced. In Cinebench R23 single-core, the 11600 actually wins, scoring 2,155 against the 13400’s 1,786 — a 20.7% victory for the older chip. This is the only test the 11600 wins outright. However, other single-threaded tests favor the 13400. In Cinebench R15 single-core, the 13400 leads 257 to 217, a 15.6% margin. Cinebench R20 single-core shows a 24.8% gap (1,203 vs. 905), and PassMark single-thread scores give the 13400 a 7.2% edge (3,538 vs. 3,284). The R23 single-core result is an outlier, possibly reflecting thermal or power management behavior specific to that benchmark’s duration.

Data-intensive workloads heavily favor the 13400. PassMark data compression scores 301,481 for the 13400 versus 218,062 for the 11600, a 27.7% lead. Data encryption shows a 30.4% gap (15,880 vs. 11,060), and extended instructions (SIMD) favor the 13400 by 18.1% (19,161 vs. 15,698). Random string sorting, a cache-sensitive test, gives the 13400 an 18.4% advantage (30,851 vs. 25,178). Prime number finding is 24.3% faster on the 13400 (74 vs. 56), while PassMark physics simulation shows a 28.4% gap (1,244 vs. 891). The overall PassMark multithread score sums up the trend: 23,719 for the 13400 versus 17,918 for the 11600, a 24.5% difference.

Architecture Differences

The two processors are built on fundamentally different foundations. The Core i5-11600 uses the Rocket Lake architecture on Intel’s 14 nm process node, with a die size of 276 mm². It packs 6 cores and 12 threads, with a base clock of 2.80 GHz and a boost of 4.80 GHz. The Core i5-13400 moves to Raptor Lake on a 10 nm node, shrinking the die to 215 mm² while increasing core count to 10 (with 16 threads). Its base clock is lower at 2.50 GHz, but the boost reaches 4.60 GHz. The 13400’s lower base clock and smaller die are offset by the newer process, which allows for better power efficiency and higher transistor density.

Cache configurations differ dramatically. The 11600 has 80 KB of L1 per core and 512 KB of L2 per core, with 12 MB of shared L3. The 13400 also has 80 KB of L1 per core, but L2 jumps to 1.25 MB per core, and L3 expands to 20 MB shared. This additional cache is critical for the 13400’s performance in data compression and sorting workloads, where larger working sets fit in the faster cache hierarchy.

Memory support diverges as well. The 11600 is limited to DDR4 with dual-channel memory and a peak bandwidth of 51.2 GB/s. The 13400 supports both DDR4 and DDR5, also dual-channel, and the FACT PACK does not list a bandwidth figure for it. The 13400 also integrates UHD Graphics 730, while the 11600’s integrated graphics are not listed. PCIe connectivity differs: the 11600 offers Gen 4 with 20 CPU lanes, while the 13400 provides Gen 5 with 16 CPU lanes. Socket compatibility is another separator — the 11600 uses Intel Socket 1200, the 13400 uses Intel Socket 1700. Both have locked multipliers, so overclocking is not officially supported on either.

The 13400’s core count advantage (10 vs. 6) is the primary driver of its multi-threaded wins, but the per-core cache increase and newer process node also contribute. The 11600’s higher boost clock (4.80 vs. 4.60) helps it in specific single-threaded scenarios, but the 13400’s newer architecture delivers better instructions-per-clock in most tests. The 11600 is marked as end-of-life production, while the 13400 remains active.

Where Each One Wins

The Core i5-13400 is the clear choice for heavily threaded workloads. In Cinebench R15 and R20 multi-core, it holds a 24.8% to 34.8% lead, making it superior for video rendering, 3D modeling, and other CPU-bound creative tasks. PassMark multithread scores confirm this with a 24.5% gap. Data compression and encryption workloads also strongly favor the 13400, with 27.7% and 30.4% margins respectively, making it better suited for database work, file archiving, and security applications. Floating-point math, a proxy for scientific computing and physics simulation, shows the largest gap at 39.6%, so any workload relying on heavy FPU usage will see the most benefit from the 13400.

The Core i5-11600’s single victory is in Cinebench R23 single-core, where it leads by 20.7%. This suggests that in very specific lightly-threaded rendering scenarios, the 11600 can outperform the 13400. However, this is an isolated result. In other single-threaded tests (Cinebench R15, R20, and PassMark), the 13400 wins by 7.2% to 24.8%. The 11600’s higher boost clock does not translate into consistent single-thread superiority; the 13400’s architectural efficiency wins out in most cases.

For everyday mixed workloads, the 13400’s 10 cores and 16 threads provide more headroom for background tasks alongside foreground applications. The 11600, with 6 cores and 12 threads, is more likely to saturate under parallel load. The 13400’s larger L3 cache (20 MB vs. 12 MB) also benefits applications with large, frequently accessed datasets. The 11600 retains relevance only for users locked into a Socket 1200 platform or those targeting the specific Cinebench R23 single-thread result.

The Verdict

The benchmark data is overwhelmingly in favor of the Intel Core i5-13400. It wins 16 of 17 comparisons, with margins ranging from 4.3% to 39.6%. The 13400 offers a 34.8% lead in Cinebench R15 multi-core, a 24.8% lead in R20 multi-core, and a 24.5% lead in PassMark multithread. For users prioritizing multi-threaded performance — video encoding, 3D rendering, data analysis — the 13400 is the superior choice by a substantial margin.

The Core i5-11600’s only win is a 20.7% advantage in Cinebench R23 single-core. This single result is not enough to recommend the 11600 for general use, given that the 13400 wins every other single-threaded test. The 11600 also carries a smaller cache (12 MB L3 vs. 20 MB), fewer cores (6 vs. 10), and an older process node (14 nm vs. 10 nm). Its only clear advantages are a higher boost clock (4.80 GHz vs. 4.60 GHz) and a smaller die footprint (276 mm² vs. 215 mm², though smaller is not necessarily better here given the older node).

The 13400 is the recommended processor for almost all use cases. It offers superior multi-threaded performance, better data throughput, and more cache. The 11600 is a viable option only for users on an existing Socket 1200 motherboard who cannot upgrade platforms, or for those who specifically need the higher boost clock for a niche single-threaded workload like the R23 test. The 13400’s active production status and support for both DDR4 and DDR5 memory make it the more future-proof choice.

FAQ

Q: Which processor is faster in multi-core benchmarks?

A: The Intel Core i5-13400 wins all multi-core comparisons, with a 34.8% lead in Cinebench R15 (2,358 vs. 1,538), a 24.8% lead in R20 (8,526 vs. 6,412), and a 24.5% lead in PassMark multithread (23,719 vs. 17,918).

Q: Does the Core i5-11600 win any benchmark?

A: Yes, the 11600 wins Cinebench R23 single-core, scoring 2,155 against the 13400’s 1,786, a 20.7% advantage. It loses all other 16 head-to-head tests.

Q: How do the core and thread counts differ?

A: The 11600 has 6 cores and 12 threads, while the 13400 has 10 cores and 16 threads. The 13400’s four additional cores are the primary reason for its multi-threaded dominance.

Q: What is the cache size difference?

A: The 11600 has 12 MB of shared L3 cache, while the 13400 has 20 MB. The 13400 also has larger L2 cache per core at 1.25 MB versus 512 KB.

Q: Which processor supports faster PCIe?

A: The 13400 supports PCIe Gen 5 with 16 CPU lanes, while the 11600 supports PCIe Gen 4 with 20 CPU lanes. The 13400 also supports both DDR4 and DDR5 memory, while the 11600 is limited to DDR4.

Q: Are both processors overclockable?

A: No, both the 11600 and 13400 have locked multipliers, so neither supports official overclocking according to the data.