Intel Core i9-14900F vs Intel Xeon Gold 6338T Comparison

The Intel Xeon Gold 6338T and Intel Core i9-14900F are both 24-core Intel parts, but they target fundamentally different segments: one is a server/workstation processor built for sustained throughput, the other a desktop chip engineered for peak responsiveness. The benchmark data shows a near-total sweep for the Core i9, but the Xeon’s two wins highlight a distinct specialization. Both processors land in the 92nd percentile of all CPUs, and their average benchmark scores are nearly identical — 60572 for the Xeon against 60008 for the Core i9 — yet the distribution of those scores could not be more different.

Head-to-Head Benchmarks

The Core i9-14900F dominates the head-to-head results, winning 15 of 17 comparisons. The margins are often severe. In Cinebench R23 multi-core, the Core i9 scores 39551 against the Xeon’s 30430, a 23.1% advantage. The same 23.1% delta appears across every Cinebench test — R15 multi-core (3986 vs 3067), R15 single-core (562 vs 432), R20 multi-core (16611 vs 12780), R20 single-core (2344 vs 1804), and R23 single-core (5583 vs 4296). This consistency suggests the Core i9’s advantage is architectural and clock-driven, not workload-specific.

The single-thread gap is even more pronounced. In Passmark single-thread, the Core i9 scores 4506 against the Xeon’s 2348, a 47.9% lead — the largest delta in the entire comparison. That nearly two-to-one ratio carries over to Passmark physics, where the Core i9 scores 2899 versus 1160, a 60% deficit for the Xeon. The Core i9 also leads in Passmark multithread (46532 vs 35801, 23.1%), floating-point math (119550 vs 90584, 24.2%), integer math (177066 vs 152275, 14%), data encryption (34644 vs 24677, 28.8%), and find prime numbers (209 vs 118, 43.5%).

The Xeon Gold 6338T wins only two tests, but they are telling. In Passmark extended instructions, it scores 43292 against the Core i9’s 31084 — a 39.3% victory, the Xeon’s largest margin. It also edges out the Core i9 in Passmark random string sorting, 66495 to 63728, a 4.3% lead. In data compression, the two are nearly tied: the Core i9 scores 564207 versus the Xeon’s 557816, a razor-thin 1.1% margin that counts as a Core i9 win but effectively shows parity.

The aggregate picture is clear: the Core i9 wins the overwhelming majority of tests, often by wide margins, while the Xeon’s wins are concentrated in instruction-heavy and sorting workloads. The average benchmark scores — 60572 for the Xeon, 60008 for the Core i9 — obscure this reality because the Xeon’s extended instructions score (43292) is exceptionally high, propping up its average despite losing most head-to-head tests.

Architecture Differences

The two CPUs share a manufacturer and process node — both are Intel parts built on 10 nm — but diverge sharply in almost every other architectural dimension. The Xeon Gold 6338T is an Ice Lake-SP part from the Xeon Gold generation, released on April 5, 2021. It uses the Intel Socket 4189 platform and targets the server/workstation market segment. The Core i9-14900F is a Raptor Lake-R part from the Core 14th Gen series, released on January 7, 2024, using Intel Socket 1700 for the desktop segment.

Both have 24 cores, but thread counts differ: the Xeon has 48 threads (two per core), while the Core i9 has 32 threads, indicating a hybrid core arrangement that is not detailed in the data beyond the thread count. Base clocks are close — 2.10 GHz for the Xeon versus 2.00 GHz for the Core i9 — but boost clocks tell a different story: the Xeon tops out at 3.40 GHz, while the Core i9 boosts to 5.80 GHz. That 2.40 GHz boost advantage is the primary driver of the Core i9’s single-thread dominance.

Cache hierarchies also differ. The Xeon has 64 KB of L1 per core and 1 MB of L2 per core, while the Core i9 has 80 KB of L1 per core and 2 MB of L2 per core. Both share 36 MB of L3, but the Core i9’s larger per-core L1 and L2 caches contribute to its higher per-thread performance. The Core i9 also has a specified die size of 257 mm²; the Xeon’s die size is not listed.

Memory support is a major differentiator. The Xeon supports DDR4 only, but over an eight-channel memory bus with a rated bandwidth of 204.8 GB/s. The Core i9 supports both DDR4 and DDR5, but over a dual-channel bus with no bandwidth figure listed. The Xeon’s eight-channel memory interface is a server-class feature; the Core i9’s dual-channel is typical of desktop platforms. Both support ECC memory, which is unusual for a desktop chip. PCIe connectivity also differs: the Xeon provides Gen 4 with 64 lanes (CPU only), while the Core i9 provides Gen 5 with 16 lanes (CPU only). The Core i9 has no integrated graphics, and the Xeon’s integrated graphics field is null.

Power and thermal characteristics are not directly comparable from the data: the Xeon has a TDP of 165, the Core i9 a TDP of 65. The Xeon’s higher TDP aligns with its server positioning and eight-channel memory controller. The Core i9 has a launch MSRP of $524; the Xeon has no listed launch MSRP.

Where Each One Wins

The Core i9-14900F is the clear winner in almost every measurable workload category. In rendering and compute-heavy tasks, it leads by 23.1% across all Cinebench versions, both single-core and multi-core. That consistency makes it the stronger choice for applications that scale with CPU clock speed and modern core architecture. Its single-thread performance is exceptional — 47.9% ahead in Passmark single-thread and 60% ahead in Passmark physics — which translates to fast response in latency-sensitive tasks.

The Core i9 also wins in general compute workloads: floating-point math (24.2% ahead), integer math (14% ahead), and find prime numbers (43.5% ahead). Data encryption shows a 28.8% advantage for the Core i9, and multithread performance is 23.1% higher. Even in data compression, where the scores are close, the Core i9 edges ahead by 1.1%. For a desktop user running typical productivity, development, or content-creation workloads, the Core i9 is the superior part in nearly every scenario the benchmarks cover.

The Xeon Gold 6338T wins in two specific areas. Passmark extended instructions measures workloads that use specialized CPU instruction sets, and here the Xeon is 39.3% ahead of the Core i9 — its largest win and a significant one. This suggests the Xeon’s Ice Lake architecture includes instruction-set extensions that are either absent or less efficient in Raptor Lake. The Xeon also wins random string sorting by 4.3%, a narrow but real margin that points to strengths in data-ordering and string-manipulation tasks. Its eight-channel memory bus, despite using DDR4, likely contributes to these wins by providing higher memory throughput for instruction-heavy and sorting workloads.

The Xeon’s other advantages are structural rather than benchmark-driven. It has 48 threads versus the Core i9’s 32, a 50% advantage in thread count that the benchmarks do not fully exploit — the Core i9 still wins multithread by 23.1%. The Xeon also offers 64 PCIe Gen 4 lanes versus the Core i9’s 16 PCIe Gen 5 lanes, and its eight-channel memory bus provides 204.8 GB/s of bandwidth. These features are invisible in the listed benchmark scores but matter for server and workstation configurations that need extensive I/O or memory capacity.

The Verdict

The data is unambiguous: the Intel Core i9-14900F is the better processor for the vast majority of workloads. It wins 15 of 17 head-to-head tests, often by margins of 23% or more, and its single-thread performance is nearly double the Xeon’s. The 47.9% lead in Passmark single-thread and 60% lead in Passmark physics make it the obvious choice for any application where per-core speed matters. Its 5.80 GHz boost clock, compared to the Xeon’s 3.40 GHz, explains this gap. For desktop users, content creators, or professionals running latency-sensitive software, the Core i9 is the pick.

The Xeon Gold 6338T is not without merit, but its strengths are narrow. Its 39.3% win in extended instructions and 4.3% win in random string sorting point to specific server-class workloads that benefit from its instruction-set support and memory subsystem. Its 48 threads, eight-channel DDR4 memory with 204.8 GB/s bandwidth, and 64 PCIe Gen 4 lanes make it a capable platform for multi-socket servers or I/O-heavy workstation builds. The data shows it trades heavily on these structural features rather than raw benchmark performance.

The average benchmark scores are nearly identical — 60572 for the Xeon against 60008 for the Core i9, a 0.9% delta — but this is misleading. The Xeon’s average is inflated by its exceptional extended-instructions score (43292), which outpaces the Core i9 by 39.3%. Remove that single outlier and the Xeon’s average would fall well below the Core i9’s. Both sit at the 92nd percentile of all CPUs, and their nearest rival lists are nearly identical, with the AMD Ryzen 9 7945HX and Ryzen 7 8745HX within 0.8% of both. The choice comes down to use case: pick the Core i9 for performance, the Xeon for server-specific features.

FAQ

Q: Which CPU has more threads?

A: The Intel Xeon Gold 6338T has 48 threads across 24 cores, while the Intel Core i9-14900F has 32 threads across 24 cores.

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

A: The Core i9-14900F leads by 47.9% in Passmark single-thread, scoring 4506 versus the Xeon’s 2348.

Q: Are there any benchmarks where the Xeon wins?

A: Yes, the Xeon Gold 6338T wins Passmark extended instructions by 39.3% (43292 vs 31084) and Passmark random string sorting by 4.3% (66495 vs 63728).

Q: What is the memory bandwidth difference?

A: The Xeon uses eight-channel DDR4 with 204.8 GB/s bandwidth. The Core i9 uses dual-channel DDR4 or DDR5, with no bandwidth figure listed.

Q: What are the boost clock speeds?

A: The Xeon boosts to 3.40 GHz, while the Core i9 boosts to 5.80 GHz — a 2.40 GHz difference.

Q: Do both CPUs support ECC memory?

A: Yes, both the Xeon Gold 6338T and the Core i9-14900F support ECC memory, though the Xeon is server-class and the Core i9 is desktop-class.