AMD EPYC 9124 vs Intel Core Ultra 7 265HX Comparison

Head-to-Head Benchmarks

The benchmark data presents a clear split between the AMD EPYC 9124 and the Intel Core Ultra 7 265HX, with each processor dominating distinct workload categories. Across the 17 recorded head-to-head tests, the Intel part claims 12 wins while the AMD EPYC takes 5, but the margin and nature of those victories tell the more interesting story.

Starting with the Cinebench suite, the Intel Core Ultra 7 265HX wins every single test by an identical 8.3% margin. In Cinebench R15 multicore, the Intel scores 4096 against the EPYC's 3756. The R20 multicore test shows 17069 versus 15652, and R23 multicore lands at 40642 versus 37269. The single-core results follow the same pattern: R15 single-core is 578 against 530, R20 single-core is 2409 against 2209, and R23 single-core is 5737 against 5261. This uniformity across all six Cinebench tests suggests a consistent per-thread performance advantage for the Intel architecture rather than a workload-specific quirk.

The Passmark suite reveals a more nuanced picture. The Intel processor dominates in floating point math with a score of 161605 versus the EPYC's 87057, a 46.1% advantage that stands as the largest gap in either direction. It also wins single-thread performance decisively, scoring 4500 against 2719, a 39.6% lead. Prime number finding goes to Intel at 406 versus 256, a 36.9% margin. Data encryption favors Intel at 39472 versus 36078, an 8.6% edge, and multithread performance goes to Intel at 47985 versus 43846, also 8.6%.

The AMD EPYC 9124's wins are concentrated in integer-heavy and data-oriented tasks. Integer math goes to the EPYC at 148785 against 126954, a 17.2% advantage. Data compression shows the EPYC ahead at 599417 versus 511817, a 17.1% margin. Random string sorting favors the EPYC at 74177 versus 62458, an 18.8% lead. Physics simulation goes to the EPYC at 3662 versus 2978, a substantial 23% margin. Extended instructions also favor AMD at 43380 versus 40741, a 6.5% edge.

The average benchmark scores place the EPYC 9124 at 65104 and the Intel Core Ultra 7 265HX at 63173, a difference of roughly 3% in favor of the AMD part. Both processors sit at the 93rd percentile among all CPUs in the database. The nearest rivals for the EPYC include the AMD EPYC 4464P at 64823 and the Intel Core Ultra 7 265 at 64640, while the Intel 265HX sits close to the Intel Core i7-13790F at 63080 and the AMD Ryzen AI 7 450G at 63331.

The Verdict

The data indicates two different design philosophies serving two different deployment scenarios. The Intel Core Ultra 7 265HX is the stronger choice for single-threaded responsiveness and floating-point workloads. Its 5.30 GHz boost clock, combined with a 39.6% lead in single-thread Passmark and a 46.1% lead in floating-point math, makes it the clear pick for latency-sensitive applications and scientific or graphics-oriented computations.

The AMD EPYC 9124 counters with superior integer throughput and data manipulation. Its 17.2% lead in integer math, 17.1% lead in data compression, and 18.8% lead in random string sorting point to a processor optimized for database operations, file handling, and general server-side data processing. The 23% advantage in physics simulation further reinforces this pattern of strong scalar integer performance.

For a mobile workstation or high-end laptop, the Intel Core Ultra 7 265HX presents the more compelling case. Its higher average performance across most measured categories, combined with a 55 W TDP versus the EPYC's 200 W, makes it suitable for environments where power efficiency and portability matter. The integrated Arc Xe-LPG Graphics 64EU also provides display output without a separate GPU.

For a rack-mounted server handling data-intensive workloads, the AMD EPYC 9124 offers the stronger platform fundamentals. The twelve-channel memory bus delivers 460.8 GB/s of bandwidth against the Intel's dual-channel 102.4 GB/s, and the 128 PCIe Gen 5 lanes provide extensive expansion capability. The ECC memory support is critical for data integrity in server environments, a feature the Intel part lacks.

Users who prioritize raw multithreaded rendering performance should note that the Intel wins all three multicore Cinebench tests by 8.3%, despite having fewer threads (20 versus 32). This suggests the Intel's higher boost clocks and newer architecture more than compensate for the thread count disadvantage in these particular workloads.

FAQ

Q: Which processor has a higher single-core performance?

A: The Intel Core Ultra 7 265HX scores 4500 in Passmark single-thread testing versus the AMD EPYC 9124's 2719, a 39.6% advantage. The Intel also leads in Cinebench R23 single-core with 5737 against 5261.

Q: How do the two processors compare in multithreaded performance?

A: The Intel Core Ultra 7 265HX wins the Passmark multithread test at 47985 versus 43846, an 8.6% margin. It also wins all three Cinebench multicore tests by 8.3% each, including R23 multicore at 40642 versus 37269.

Q: Which processor has better memory bandwidth?

A: The AMD EPYC 9124 has a twelve-channel memory bus delivering 460.8 GB/s, compared to the Intel Core Ultra 7 265HX's dual-channel bus at 102.4 GB/s. The AMD part also supports ECC memory while the Intel part does not.

Q: What are the core and thread counts?

A: The AMD EPYC 9124 has 16 cores and 32 threads. The Intel Core Ultra 7 265HX has 20 cores and 20 threads, meaning it does not support simultaneous multithreading.

Q: Which processor wins in floating-point math?

A: The Intel Core Ultra 7 265HX scores 161605 in Passmark floating-point math versus the AMD EPYC 9124's 87057, a 46.1% advantage. This is the largest performance gap in either direction across all recorded benchmarks.

Q: Which processor wins in integer math and data compression?

A: The AMD EPYC 9124 wins both. Integer math shows 148785 versus 126954, a 17.2% advantage, and data compression shows 599417 versus 511817, a 17.1% lead.

Specification Differences

The two processors differ across nearly every fundamental specification category. The AMD EPYC 9124 operates with a 3.00 GHz base clock and 3.70 GHz boost clock, while the Intel Core Ultra 7 265HX starts lower at 2.60 GHz base but boosts much higher to 5.30 GHz. Thermal design power differs dramatically: the EPYC draws 200 W while the Intel part is rated at 55 W.

The EPYC 9124 uses AMD Socket SP5, a server platform, while the Intel Core Ultra 7 265HX uses Intel BGA 2114, a mobile socket. The EPYC has 16 cores and 32 threads, whereas the Intel has 20 cores and 20 threads. Cache configurations diverge substantially: the EPYC carries 64 KB L1 per core, 1 MB L2 per core, and 64 MB shared L3, while the Intel has 192 KB L1 per core, 3 MB L2 per core, and 30 MB shared L3.

Memory architecture differs fundamentally. The EPYC supports DDR5 through a twelve-channel memory bus with 460.8 GB/s bandwidth and ECC capability. The Intel also supports DDR5 but through a dual-channel bus with 102.4 GB/s bandwidth and no ECC support. PCIe lane counts also differ: the EPYC provides 128 Gen 5 lanes while the Intel provides 20 Gen 5 lanes.

The AMD EPYC 9124 has no integrated graphics, whereas the Intel Core Ultra 7 265HX includes Arc Xe-LPG Graphics 64EU. The EPYC's launch MSRP is $1083. The Intel part has a multiplier unlocked for overclocking; the EPYC does not. Release dates differ as well: the EPYC launched in November 2022, while the Intel arrived in January 2025.

Architecture Differences

The AMD EPYC 9124 is built on the Zen 4 architecture, codenamed Genoa, as part of the EPYC 9004 series. It uses a 5 nm process from TSMC with 26,280 million transistors spread across four chiplets, each 72 mm². This server-oriented design prioritizes memory bandwidth and expansion capability above all else.

The Intel Core Ultra 7 265HX belongs to the Core Ultra Series 2 based on the Arrow Lake architecture, specifically Arrow Lake-HX. It uses a 3 nm process also from TSMC, with 17,800 million transistors on a single 243 mm² die. The mobile-focused design integrates graphics and emphasizes power efficiency with its 55 W TDP.

Cache architecture reflects the different design goals. The EPYC's 64 MB shared L3 cache is more than double the Intel's 30 MB, providing a large pool for server workloads that benefit from extensive data reuse. The Intel's per-core L1 at 192 KB and L2 at 3 MB are larger individually, which helps single-threaded performance and explains its 39.6% lead in single-thread Passmark scores.

The EPYC's twelve-channel memory controller is designed for high-throughput server applications, delivering 460.8 GB/s, while the Intel's dual-channel controller at 102.4 GB/s targets mobile power constraints. The Intel's integrated Arc Xe-LPG Graphics 64EU eliminates the need for a discrete GPU in basic display scenarios, while the EPYC relies entirely on external graphics.

The process node difference (5 nm for AMD, 3 nm for Intel) and the transistor counts reflect different integration strategies. The EPYC spreads across multiple dies to maximize yield and scaling in server platforms, while the Intel uses a monolithic design for the mobile form factor.

Where Each One Wins

The AMD EPYC 9124 wins in data compression, integer math, extended instructions, physics simulation, and random string sorting. These are the workloads where the EPYC's 17.1% to 23% advantages emerge. The pattern points toward server-side data processing, database operations, compression pipelines, and simulations that rely on integer arithmetic and memory-resident datasets. The 64 MB L3 cache and twelve-channel memory bandwidth provide the foundation for these wins.

The Intel Core Ultra 7 265HX wins in all six Cinebench tests, floating-point math, prime number finding, single-thread performance, data encryption, and Passmark multithread. The Cinebench sweep by 8.3% across every version indicates strong rendering performance in both single and multi-core scenarios. The 46.1% floating-point lead makes it the choice for scientific computing, financial modeling, and graphics rendering where FP32 or FP64 throughput dominates.

For mobile workstation users, the Intel part's 55 W TDP combined with its single-thread advantage and integrated graphics makes it the practical option for on-the-go development, content creation, and analysis work. The EPYC's 200 W TDP effectively requires a server chassis with robust cooling and power delivery.

For data center operators running compression-heavy services, integer-dominant workloads, or physics-based simulations, the EPYC 9124's 23% physics advantage and 17.2% integer lead justify its server platform requirements. The ECC memory support and 128 PCIe lanes enable reliable, expandable systems that the Intel mobile part cannot match.

The average benchmark scores tell a final story: the EPYC 9124 averages 65104 across all tests, slightly ahead of the Intel's 63173. The Intel wins more individual tests, but the EPYC's wins come in categories with larger absolute score gaps, pulling its average ahead. Both processors sit at the 93rd percentile of all CPUs, indicating either choice places the user in the top tier of available performance.