Intel Core Ultra 5 245K vs Intel Xeon Gold 5320H Comparison

The Intel Core Ultra 5 245K and the Intel Xeon Gold 5320H are both high-performance processors, but they are engineered for fundamentally different environments. The data shows a clear split: the Core Ultra 5 245K dominates in single-threaded tasks, encryption, and floating-point math, while the Xeon Gold 5320H leverages its 20 cores and 40 threads to win in multi-threaded Cinebench R23 and integer workloads. The Core Ultra 5 245K wins 11 of the 17 head-to-head benchmark comparisons, but the Xeon Gold 5320H’s victories in key server-oriented tasks make it a formidable contender for specific workloads.

FAQ

Q: Which processor has the higher single-thread performance?

A: The Intel Core Ultra 5 245K is significantly faster in single-threaded PassMark tests, scoring 4,714 compared to the Xeon Gold 5320H’s 2,428, a 94.2% advantage. However, in Cinebench R15 and R23 single-core tests, the Xeon Gold 5320H actually wins, scoring 383 vs. 322 and 3,806 vs. 2,132, respectively.

Q: How do they compare in multi-core performance?

A: The Xeon Gold 5320H wins the Cinebench R23 multicore test with a score of 26,960, which is 7% higher than the Core Ultra 5 245K’s 25,066. Conversely, the Core Ultra 5 245K wins Cinebench R15 and R20 multicore tests by 41.7% and 35.7%, respectively.

Q: Which CPU has more cores and threads?

A: The Intel Xeon Gold 5320H has 20 cores and 40 threads, while the Intel Core Ultra 5 245K has 14 cores and 14 threads. The Xeon Gold’s thread count is more than double that of the Core Ultra 5.

Q: Do both processors support ECC memory?

A: Yes, both the Intel Core Ultra 5 245K and the Intel Xeon Gold 5320H support ECC memory. This makes both viable for workstation and server environments where data integrity is critical.

Q: What is the difference in their manufacturing process?

A: The Core Ultra 5 245K is built on a 3 nm process by TSMC, while the Xeon Gold 5320H uses Intel’s 14 nm process. This generation gap contributes to the Core Ultra 5’s higher clock speeds and efficiency.

Q: Which CPU has a higher average benchmark score?

A: The Core Ultra 5 245K has a slightly higher average benchmark score of 54,053 compared to the Xeon Gold 5320H’s 52,431. Both CPUs rank in the 91st percentile against all CPUs.

Architecture Differences

The architectural divide between these two processors is stark. The Intel Core Ultra 5 245K is part of the Core Ultra Series 2, built on the Arrow Lake-S architecture using a 3 nm process from TSMC. It features 14 cores and 14 threads, with a base clock of 4.20 GHz and a boost clock of 5.20 GHz. Its cache hierarchy includes 192 KB of L1 per core, 3 MB of L2 per core, and 24 MB of shared L3 cache. The chip is designed for the desktop segment, using an Intel Socket 1851, and includes integrated Arc Xe-LPG Graphics with 64 execution units.

In contrast, the Intel Xeon Gold 5320H is a server/workstation part based on the Cooper Lake-SP architecture, fabricated on Intel’s 14 nm process. It is a much larger design with 20 cores and 40 threads, running at a lower base clock of 2.40 GHz and a boost clock of 4.20 GHz. Its cache structure is different, with 64 KB of L1 per core, 1 MB of L2 per core, and a larger 27.5 MB of shared L3 cache. It uses the Intel Socket 4189 and has no integrated graphics. The Xeon Gold also supports a six-channel memory bus with DDR4 memory, while the Core Ultra 5 uses a dual-channel DDR5 bus.

The Core Ultra 5 245K has a 125 W TDP, while the Xeon Gold 5320H has a higher 150 W TDP. The Core Ultra 5 also features a PCIe Gen 5 interface with 20 lanes, whereas the Xeon Gold uses PCIe Gen 3 with 48 lanes. Furthermore, the Core Ultra 5 has an unlocked multiplier for overclocking, while the Xeon Gold is locked. The transistor count and die size are only specified for the Core Ultra 5, at 17,800 million transistors on a 243 mm² die.

Head-to-Head Benchmarks

Benchmark results reveal a complex performance landscape. The Core Ultra 5 245K’s most decisive victory comes in PassMark data encryption, where it scores 33,286 against the Xeon Gold’s 11,462, an enormous 190.4% lead. This is followed by a 165.4% win in PassMark find prime numbers (414 vs. 156) and a 94.2% lead in both PassMark single-thread and singlethread tests (4,714 vs. 2,428). The Core Ultra 5 also shows strong performance in floating-point math, scoring 130,678 vs. 73,873, a 76.9% advantage.

The Xeon Gold 5320H fights back in other areas. It wins the Cinebench R23 single-core test with a score of 3,806, which is 44% higher than the Core Ultra 5’s 2,132. It also takes the Cinebench R23 multicore test (26,960 vs. 25,066) and PassMark integer math (119,955 vs. 98,524). In data compression and random string sorting, the Xeon Gold leads with scores of 500,828 vs. 458,817 and 62,730 vs. 55,098, respectively.

The Cinebench suite shows a split based on the version. In R15 and R20 multicore, the Core Ultra 5 wins by 41.7% (3,850 vs. 2,717) and 35.7% (15,368 vs. 11,323). In R20 single-core, the Core Ultra 5 wins by 35.7% (2,169 vs. 1,598). However, the Xeon Gold wins Cinebench R15 single-core by 15.9% and R23 single-core by 44%. The Core Ultra 5 also wins PassMark extended instructions (37,617 vs. 36,564), multithread (43,047 vs. 31,718), and physics (3,081 vs. 2,395).

Specification Differences

The two processors differ across several key specifications. The most obvious difference is in core and thread counts: the Xeon Gold 5320H has 20 cores and 40 threads, while the Core Ultra 5 245K has 14 cores and 14 threads. Clock speeds also vary, with the Core Ultra 5 having a higher base clock (4.20 GHz vs. 2.40 GHz) and a higher boost clock (5.20 GHz vs. 4.20 GHz).

The manufacturing process is a major differentiator, with the Core Ultra 5 on TSMC’s 3 nm node versus Intel’s 14 nm node for the Xeon Gold. The sockets are incompatible: Intel Socket 1851 for the Core Ultra 5 and Intel Socket 4189 for the Xeon Gold. Memory support differs, with the Core Ultra 5 using dual-channel DDR5 (102.4 GB/s bandwidth) and the Xeon Gold using six-channel DDR4 (128.0 GB/s bandwidth). PCIe support also differs: the Core Ultra 5 has Gen 5 with 20 lanes, while the Xeon Gold has Gen 3 with 48 lanes.

Cache sizes are different, with the Core Ultra 5 having 192 KB L1 and 3 MB L2 per core, versus 64 KB L1 and 1 MB L2 per core for the Xeon Gold. The Xeon Gold has a larger L3 cache at 27.5 MB shared, compared to 24 MB shared for the Core Ultra 5. The Core Ultra 5 includes integrated graphics, while the Xeon Gold has none. The Core Ultra 5 has an unlocked multiplier; the Xeon Gold is locked. The TDP is 125 W for the Core Ultra 5 and 150 W for the Xeon Gold. The Core Ultra 5 has a launch MSRP of $319.

The Verdict

The data points to a clear verdict: the Intel Core Ultra 5 245K is the superior processor for general desktop and single-threaded performance, while the Intel Xeon Gold 5320H is better for specific multi-threaded server workloads. The Core Ultra 5 wins 11 of the 17 head-to-head benchmarks, including dominant victories in encryption, floating-point math, and single-threaded PassMark tests. Its modern 3 nm architecture and higher clock speeds give it a decisive edge in latency-sensitive tasks.

However, the Xeon Gold 5320H’s 40 threads allow it to win in integer math, data compression, and random string sorting, as well as the Cinebench R23 multicore test. For users who rely on these specific workloads, the Xeon Gold’s performance is compelling. The Xeon Gold also supports six-channel memory, which provides higher peak memory bandwidth (128.0 GB/s vs. 102.4 GB/s), despite using older DDR4.

The Core Ultra 5 is the better choice for most desktop users, gamers, and content creators who prioritize single-thread performance and modern features like PCIe Gen 5. The Xeon Gold is suited for server environments where multi-threaded integer performance and high memory bandwidth matter more than clock speed. Both CPUs are in the 91st percentile, but they excel in different areas.

Where Each One Wins

The Intel Core Ultra 5 245K wins decisively in PassMark data encryption, floating-point math, single-thread performance, and prime number finding. Its 190.4% lead in encryption and 94.2% lead in single-thread PassMark scores make it ideal for security-sensitive applications, scientific simulations, and everyday desktop responsiveness. It also wins Cinebench R15 and R20 multicore tests, along with PassMark multithread and physics tests, showing it handles many multi-threaded tasks efficiently despite having fewer threads.

The Intel Xeon Gold 5320H wins in PassMark integer math (119,955 vs. 98,524), data compression (500,828 vs. 458,817), and random string sorting (62,730 vs. 55,098). Its biggest wins come in Cinebench R23 single-core (44% higher) and multicore (7% higher). This makes it particularly strong for database workloads, data processing, and any application that relies heavily on integer operations or compression. The Xeon Gold’s 40 threads and six-channel memory interface provide a scalable platform for heavily threaded server tasks, even if its older architecture limits its single-thread performance.