Intel Core i5-14600 vs Intel Core i9-12900KS Comparison

The Intel Core i9-12900KS and Intel Core i5-14600 are both Socket 1700 desktop processors, but they target very different segments of the market. The i9-12900KS is a 12th Gen Alder Lake flagship with a 150 W TDP and a launch MSRP of $739, while the i5-14600 is a 14th Gen Raptor Lake part with a 65 W TDP and a launch MSRP of $255. The benchmark data shows a clear performance hierarchy, but the margin is not uniform across all workloads.

Head-to-Head Benchmarks

The most striking pattern in the head-to-head results is the consistency of the i9-12900KS’s lead in multi-threaded and most single-threaded tests. Across the Cinebench suite, the i9-12900KS wins every round by exactly 21%. In Cinebench R23 multi-core, the i9-12900KS scores 36,859 against the i5-14600’s 30,464. The single-core R23 result is similar: 5,203 versus 4,300. This 21% advantage is uniform across R15, R20, and R23, indicating a consistent architectural and core-count advantage that scales with the workload.

Geekbench tells a slightly different story. In multi-core, the i9-12900KS wins by 26.3%, scoring 18,538 versus 14,680. However, in Geekbench single-core, the i5-14600 actually takes the win, scoring 2,424 against the i9-12900KS’s 2,408. The delta is only -0.7%, making it a narrow victory for the i5-14600, but it is the only benchmark in the entire head-to-head set where the i5-14600 comes out ahead. This suggests that for lightly-threaded, latency-sensitive tasks, the newer Raptor Lake architecture can edge out the older Alder Lake design, even when the i9 has a higher boost clock of 5.50 GHz versus 5.20 GHz.

The Passmark suite reinforces the i9-12900KS’s dominance in heavily parallel workloads. The largest margin is in extended instructions, where the i9-12900KS leads by 36.7% (35,089 versus 25,674). Floating point math also shows a 29.9% gap (111,429 versus 85,759), and data compression shows a 29.7% lead (563,709 versus 434,620). Integer math and random string sorting both show a 26% advantage. The i9-12900KS also wins data encryption by 25.2% (31,403 versus 25,082) and multi-threaded performance by 21.9% (43,698 versus 35,848).

In the lighter Passmark tests, the margins shrink considerably. Find prime numbers shows the i9-12900KS ahead by just 1.9% (158 versus 155). Physics shows a 4.6% lead (2,437 versus 2,330), and single-thread performance shows a 3.9% lead (4,330 versus 4,167). These smaller margins suggest that the i5-14600’s newer cores are competitive on a per-thread basis, but they simply cannot overcome the i9-12900KS’s advantages in core count and cache size in sustained multi-threaded work.

Overall, the i9-12900KS wins 18 of the 19 head-to-head benchmarks. The only victory for the i5-14600 is the Geekbench single-core test, and even that is marginal. The average benchmark scores confirm the overall picture: the i9-12900KS posts an average score of 45,094, while the i5-14600 posts 44,889. This puts the i9-12900KS just 0.5% ahead in average terms, yet the distribution of wins is heavily skewed. The i9-12900KS’s average score places it at the 89th percentile among all CPUs, and the i5-14600 is also at the 89th percentile, showing that both are high-end performers, but the i9-12900KS pulls away in the most demanding tasks.

The Verdict

From a pure performance standpoint, the Intel Core i9-12900KS is the clear winner. It wins 18 out of 19 head-to-head benchmarks, with margins ranging from 1.9% to 36.7%. If your workload is multi-threaded — video rendering, 3D modeling, data compression, or encryption — the i9-12900KS is the faster part by a substantial margin. The Cinebench numbers alone make this obvious: a 21% lead across every version of the test means the i9-12900KS will finish rendering jobs noticeably sooner.

However, the data does not support a universal recommendation. The i5-14600 wins the Geekbench single-core test, and it does so while consuming far less power on paper — its 65 W TDP versus the i9-12900KS’s 150 W TDP. For users who prioritize single-threaded responsiveness in everyday applications, or who have strict power or cooling constraints, the i5-14600 is the more practical choice. Its single-core score of 2,424 is essentially tied with the i9-12900KS’s 2,408, so you sacrifice almost nothing in that specific metric.

The i5-14600 also makes sense for builders who do not need the extra cores. The i9-12900KS has 16 cores and 24 threads, while the i5-14600 has 14 cores and 20 threads. In workloads that scale poorly beyond 14 cores, the i5-14600 will perform nearly as well, as evidenced by the small 3.9% difference in Passmark single-thread and the 1.9% gap in find prime numbers. If your software is not heavily threaded, the i9-12900KS’s additional cores are wasted, and the i5-14600’s newer architecture can match or nearly match its per-core performance.

The verdict is straightforward: choose the i9-12900KS for maximum multi-threaded throughput and for workloads that use every core you can give them. Choose the i5-14600 for a more efficient, cooler-running part that still delivers strong single-threaded performance and is only slightly behind in average benchmark score. The i5-14600 is not a budget alternative in the sense of being slow — it is a legitimate competitor that happens to lose most benchmarks by a wide margin but wins the one that matters most for certain users.

Architecture Differences

The two processors come from different generations and architectures. The i9-12900KS is built on Alder Lake, with the codename Alder Lake-S, while the i5-14600 uses Raptor Lake, specifically Raptor Lake-R. Both are fabricated on Intel’s 10 nm process, so the underlying transistor technology is the same, but the core designs have evolved.

The i9-12900KS features 16 cores and 24 threads, which is a hybrid configuration typical of Alder Lake. The i5-14600 has 14 cores and 20 threads, a slightly reduced hybrid setup. The i9-12900KS has a base clock of 3.40 GHz and a boost clock of 5.50 GHz. The i5-14600 has a base clock of 2.70 GHz and a boost clock of 5.20 GHz. The i9-12900KS’s higher clocks give it an edge in most tests, but the i5-14600’s newer core architecture helps it close the gap in single-threaded Geekbench.

Cache sizes differ significantly. The i9-12900KS has 1.25 MB of L2 cache per core and 30 MB of shared L3 cache. The i5-14600 has 2 MB of L2 cache per core, but only 24 MB of shared L3 cache. The larger per-core L2 on the i5-14600 likely contributes to its strong single-threaded results, while the i9-12900KS’s larger L3 cache helps in multi-threaded workloads where more data can be kept close to the cores. Both have 80 KB of L1 cache per core.

The die sizes also differ: the i9-12900KS measures 215 mm², while the i5-14600 measures 257 mm². This is notable because the i5-14600 is a larger die despite having fewer cores, reflecting the different layout and possibly the inclusion of more per-core cache. Both processors support DDR4 and DDR5 memory in a dual-channel configuration, and both support ECC memory. The i9-12900KS has a listed memory bandwidth of 76.8 GB/s, while the i5-14600 does not have a memory bandwidth figure in the data. Both use PCIe Gen 5 with 16 lanes from the CPU, and both include integrated UHD Graphics 770.

The i9-12900KS has an unlocked multiplier, while the i5-14600 does not. This means the i9-12900KS can be overclocked, while the i5-14600 is locked to its factory specifications. The production status for both is listed as Active, but the release dates differ: the i9-12900KS was released on 2022-04-04, while the i5-14600 was released on 2024-01-07.

FAQ

Q: Which CPU is faster in multi-core workloads?

A: The Intel Core i9-12900KS is faster in every multi-core test in the data. It wins Cinebench R23 multi-core with 36,859 versus 30,464, a 21% lead. In Geekbench multi-core, it scores 18,538 versus 14,680, a 26.3% lead. Passmark multi-thread shows 43,698 versus 35,848, a 21.9% lead.

Q: Is the i5-14600 better in any benchmark?

A: Yes, the i5-14600 wins the Geekbench single-core test. It scores 2,424 versus the i9-12900KS’s 2,408, a -0.7% delta. This is the only head-to-head benchmark that the i5-14600 wins out of 19 total tests.

Q: How do their core counts compare?

A: The i9-12900KS has 16 cores and 24 threads. The i5-14600 has 14 cores and 20 threads. The i9-12900KS has two more cores and four more threads.

Q: Do both CPUs support the same memory?

A: Yes, both support DDR4 and DDR5 memory in a dual-channel configuration. Both also support ECC memory. The i9-12900KS has a memory bandwidth of 76.8 GB/s, while the i5-14600 does not have a memory bandwidth figure listed.

Q: Are these CPUs comparable in overall average performance?

A: The average benchmark scores are very close. The i9-12900KS has an average score of 45,094, and the i5-14600 has an average score of 44,889. This puts the i9-12900KS only 0.5% ahead on average, despite winning the vast majority of individual tests.

Q: Which CPU has a higher boost clock?

A: The i9-12900KS has a boost clock of 5.50 GHz, while the i5-14600 has a boost clock of 5.20 GHz. The i9-12900KS also has a higher base clock at 3.40 GHz versus 2.70 GHz.

Where Each One Wins

The i9-12900KS wins in every category that rewards raw core count and sustained multi-threaded performance. Cinebench R15, R20, and R23 multi-core tests all show a 21% lead, making it the better choice for video rendering, 3D animation, and other CPU-bound creative workloads. Passmark data compression and encryption show leads of 29.7% and 25.2%, respectively, which matters for file archiving, database compression, and disk encryption tasks. The 36.7% lead in extended instructions is significant for scientific computing and workloads that use AVX-512 or similar instruction sets. The i9-12900KS also wins floating point math by 29.9% and integer math by 26%, making it the pick for heavy number-crunching.

The i5-14600 wins in the narrow scenario of Geekbench single-core performance. Its score of 2,424 edges out the i9-12900KS’s 2,408. This suggests that for single-threaded applications like older games, light office work, or scripts that are not parallelized, the i5-14600 performs essentially the same as the i9-12900KS. The i5-14600 also comes closer in some lighter Passmark tests: the 4.6% gap in physics and the 3.9% gap in single-thread performance show that for less demanding tasks, the i5-14600 is within a few percent of the i9-12900KS. Given its lower TDP of 65 W versus 150 W, the i5-14600 is the more sensible choice for small form factor builds, low-noise systems, or any scenario where power draw and heat output are primary concerns.

Specification Differences

The two CPUs differ in several key specifications. The i9-12900KS has 16 cores and 24 threads, while the i5-14600 has 14 cores and 20 threads. Base clocks are 3.40 GHz for the i9-12900KS and 2.70 GHz for the i5-14600. Boost clocks are 5.50 GHz and 5.20 GHz, respectively. The TDP is 150 W for the i9-12900KS and 65 W for the i5-14600.

The L2 cache configuration differs: the i9-12900KS has 1.25 MB per core, while the i5-14600 has 2 MB per core. L3 cache is 30 MB shared on the i9-12900KS and 24 MB shared on the i5-14600. Both have 80 KB of L1 cache per core. The die size is 215 mm² for the i9-12900KS and 257 mm² for the i5-14600.

Memory bandwidth is listed as 76.8 GB/s for the i9-12900KS, with no figure given for the i5-14600. The i9-12900KS has an unlocked multiplier, while the i5-14600 does not. The release dates are 2022-04-04 for the i9-12900KS and 2024-01-07 for the i5-14600. The part numbers are SRLDD for the i9-12900KS and SRN44 for the i5-14600. Both use the Intel Socket 1700, support DDR4 and DDR5, have dual-channel memory, support ECC, use PCIe Gen 5 with 16 lanes, and include UHD Graphics 770. The i9-12900KS is from the Core 12th Gen series with Alder Lake architecture, while the i5-14600 is from the Core 14th Gen series with Raptor Lake architecture.