AMD Ryzen 9 7900 vs Intel Core i5-14600K Comparison

The AMD Ryzen 9 7900 and Intel Core i5-14600K are both 90th-percentile desktop CPUs, but their benchmark profiles diverge sharply. The head-to-head data records 17 benchmark comparisons, and the Ryzen 9 7900 takes 14 of them, while the Core i5-14600K secures only 3. The average benchmark scores tell a similar story: the AMD part scores 49,228 against Intel's 48,618, a modest overall gap that masks some very lopsided individual results.

Head-to-Head Benchmarks

The most dramatic disparity appears in the PassMark prime number test, where the Ryzen 9 7900 scores 380 versus 162 for the Core i5-14600K — a 134.6% advantage. This is not a marginal win; it suggests the AMD architecture’s integer execution pipeline handles this workload at more than double the throughput. Similarly, the PassMark extended instructions test shows the Ryzen 9 7900 at 42,253 against 28,546, a 48% lead that points to significantly stronger SIMD or specialized instruction processing. The data encryption test also favors AMD heavily: 34,708 versus 27,533, a 26.1% margin, which is notable for any workload involving cryptography or secure data handling.

Multi-threaded workloads consistently favor the AMD chip, though the margins vary. The PassMark multithread test shows 48,347 versus 38,682, a 25% win for the Ryzen 9 7900. Integer math follows with 164,075 versus 125,737, a 30.5% advantage. Random string sorting shows 68,474 versus 51,949, a 31.8% gap. Even the 3DMark suite, which is not present in the head-to-head list but appears in the individual benchmark records, shows the Ryzen 9 7900 scoring 10,953 at max threads versus 10,056 at 16 threads for itself, though no direct Intel comparison is available there. The Cinebench R23 multicore result is surprisingly close: 24,776 versus 24,491, just a 1.2% win for AMD. This indicates that in sustained all-core rendering, the two CPUs are nearly equivalent despite the AMD chip having 12 cores and 24 threads versus Intel's 14 cores and 20 threads. Cinebench R15 multicore shows a larger AMD win at 4,020 versus 3,640, a 10.4% margin.

The Intel part does claim the single-threaded crown, but only in select tests. The Cinebench R23 single-core score is 2,064 versus 1,966, a 4.7% lead for Intel. PassMark single-thread shows 4,270 versus 4,130, a 3.3% edge. However, the Geekbench single-core result is essentially a tie: 2,495 for AMD versus 2,491 for Intel, a 0.2% difference that favors AMD. Cinebench R15 single-core also goes to AMD at 315 versus 297, a 6.1% margin. The pattern suggests Intel wins in newer, AVX-heavy single-thread tests, while AMD holds its own in legacy and synthetic integer single-thread workloads.

The remaining wins for AMD include PassMark physics (3,059 versus 2,473, a 23.7% lead), floating point math (97,943 versus 92,794, a 5.5% edge), and data compression (577,847 versus 482,020, a 19.9% margin). The data compression and encryption wins together suggest the Ryzen 9 7900 is materially faster for archival or database-style workloads.

FAQ

Q: Which CPU wins more head-to-head benchmarks?

A: The AMD Ryzen 9 7900 wins 14 of the 17 head-to-head comparisons, while the Intel Core i5-14600K wins only 3.

Q: How large is the single-thread performance gap?

A: It depends on the test. Intel leads by 4.7% in Cinebench R23 single-core and 3.3% in PassMark single-thread, but AMD leads by 6.1% in Cinebench R15 single-core and 0.2% in Geekbench single-core.

Q: Is the multi-threaded performance difference consistent?

A: No. AMD wins by 25% in PassMark multithread and 30.5% in integer math, but only 1.2% in Cinebench R23 multicore, showing workload-dependent scaling.

Q: What is the biggest single benchmark gap?

A: The PassMark find prime numbers test shows the Ryzen 9 7900 at 380 versus 162 for the Core i5-14600K, a 134.6% difference.

Q: Do the two CPUs have similar overall performance percentiles?

A: Yes, both are in the 90th percentile of all CPUs, and their average benchmark scores differ by only about 1.3% (49,228 vs 48,618).

Q: Which CPU has a higher launch MSRP?

A: The AMD Ryzen 9 7900 has a launch MSRP of $429, while the Intel Core i5-14600K has a launch MSRP of $319.

The Verdict

The data points to the AMD Ryzen 9 7900 as the superior all-around performer for most users, given that it wins 14 of 17 comparisons and posts the higher average benchmark score. The areas where it loses — single-thread in Cinebench R23 and PassMark — are real but narrow, with Intel's largest single-thread lead being 4.7%. For any workload that can use more than a few threads, the AMD part is decisively ahead in most cases, particularly in encryption (26.1%), integer math (30.5%), and multithread (25%). The Ryzen 9 7900 also offers a 64 MB shared L3 cache versus 24 MB on the Intel part, which likely contributes to its wins in data compression and random string sorting.

The Intel Core i5-14600K is the choice only if the priority is absolute peak single-thread performance in specific tests like Cinebench R23, where it scores 2,064 versus 1,966. It also has a lower launch MSRP of $319 versus $429, though pricing is not a factor in benchmark-based recommendations. For general desktop use, content creation, or any parallel workload, the Ryzen 9 7900's 14 wins out of 17 make it the data-driven pick. The 1.2% Cinebench R23 multicore result, however, shows that Intel's 14-core hybrid design can keep pace in pure rendering, so users in that niche may not feel a difference.

Specification Differences

The two CPUs differ in several core specifications. The AMD Ryzen 9 7900 has 12 cores and 24 threads, while the Intel Core i5-14600K has 14 cores and 20 threads. Base clocks are 3.70 GHz for AMD versus 3.50 GHz for Intel, and boost clocks are 5.40 GHz versus 5.30 GHz. The TDP figures differ substantially: 65 watts for AMD versus 125 watts for Intel. The AMD part uses the AMD Socket AM5, while Intel uses Intel Socket 1700. Memory support also differs: AMD supports DDR5 only, while Intel supports both DDR4 and DDR5. The AMD chip has a memory bandwidth of 83.2 GB/s, while Intel's memory bandwidth is not listed. PCIe lanes differ: AMD has Gen 5 with 24 lanes (CPU only), while Intel has Gen 5 with 16 lanes (CPU only). Integrated graphics differ: AMD has Radeon Graphics, Intel has UHD Graphics 770. Both have unlocked multipliers. The launch MSRP is $429 for AMD and $319 for Intel. The release dates differ: January 2023 for AMD and October 2023 for Intel. The process nodes are 5 nm for AMD (TSMC) and 10 nm for Intel (Intel foundry). The die size is 2x 71 mm² for AMD versus 257 mm² for Intel. The AMD part has 13,140 million transistors, while Intel's transistor count is not listed.

Architecture Differences

The architectural divide is significant. AMD uses Zen 4 architecture with the codename Raphael, built on a 5 nm TSMC process. Intel uses Raptor Lake architecture with the codename Raptor Lake-R, built on a 10 nm Intel process. The cache hierarchies differ: AMD has 64 KB L1 per core, 1 MB L2 per core, and 64 MB shared L3. Intel has 80 KB L1 per core, 2 MB L2 per core, and 24 MB shared L3. The larger L3 cache on AMD likely explains its strong showing in data-heavy tests like encryption and compression. Intel's hybrid architecture is not detailed in the data, but the core/thread counts (14 cores, 20 threads) imply a mix of performance and efficiency cores, which is a known design pattern. AMD's 12 cores and 24 threads are all uniform Zen 4 cores. Both support ECC memory. The PCIe lane count favors AMD (24 vs 16), which may matter for expansion. The process node difference (5 nm vs 10 nm) is a clear generational advantage for AMD, though Intel's die size of 257 mm² versus AMD's 2x 71 mm² suggests different design philosophies.

Where Each One Wins

The AMD Ryzen 9 7900 wins in 14 of 17 comparisons, making it the default pick for nearly all workloads. Its biggest wins are in prime number finding (134.6% lead), extended instructions (48%), integer math (30.5%), and random string sorting (31.8%). This makes it the superior choice for scientific computing, cryptography, data compression, and any integer-heavy parallel task. The PassMark multithread win (25%) and physics win (23.7%) suggest it also handles simulation and physics-based workloads better. The Geekbench multicore win (6.3%) and Cinebench R15 multicore win (10.4%) reinforce its multi-threaded dominance, though the Cinebench R23 multicore result (1.2% win) shows it is not universally faster in rendering.

The Intel Core i5-14600K wins in Cinebench R23 single-core (4.7% lead), PassMark single-thread (3.3% lead), and the duplicate PassMark singlethread test (3.3% lead). This makes it the pick for applications that are strictly single-threaded and benefit from the highest possible clock speed in those specific tests. Its 14 cores and 20 threads keep it competitive in multi-threaded rendering, as shown by the narrow Cinebench R23 multicore loss. However, its 24 MB L3 cache versus 64 MB on AMD means it loses every cache-sensitive test in the comparison. For users who prioritize the absolute fastest single-thread score in Cinebench R23 or PassMark, the Intel part is the data-backed option. For everyone else, the Ryzen 9 7900's 14 wins out of 17 make it the clear benchmark champion.