AMD EPYC 9354P vs Intel Core i5-1235U Comparison

Head-to-Head Benchmarks

The recorded data presents a stark contrast between these two processors. In the Cinebench suite, the AMD EPYC 9354P dominates the Intel Core i5-1235U with a consistent margin. Across the R15, R20, and R23 multicore tests, the EPYC 9354P delivers scores of 6434, 26812, and 63840 respectively, while the Core i5-1235U manages 985, 4105, and 9774. This translates to a delta of 553.2% in each of those multicore tests, meaning the AMD chip scores over six and a half times higher in raw multi-threaded throughput. The single-core Cinebench results follow the same pattern: the EPYC 9354P scores 908 in R15, 3785 in R20, and 9012 in R23, versus 138, 579, and 1379 for the Intel part, with deltas of 558%, 553.7%, and 553.5% respectively.

Geekbench tells a slightly different story. In the multicore test, the EPYC 9354P scores 14214 against the Core i5-1235U's 5308, a 167.8% advantage. However, in the Geekbench single-core test, the Intel Core i5-1235U edges ahead with a score of 1609 versus 1605 for the EPYC, a delta of -0.2%. This is the only benchmark in the entire head-to-head set where the Intel processor wins. It is a narrow victory, less than one percent, but it is the sole instance of the mobile chip outperforming the server part. Overall, the EPYC 9354P wins 7 of the 8 recorded head-to-head benchmarks, with the single-core Geekbench result being the only exception.

Where Each One Wins

The use-case split is clear from the data. The AMD EPYC 9354P is the overwhelming winner for any workload that scales with core count and cache. Its 32 cores and 64 threads allow it to process massive parallel workloads, which the benchmark results reflect in the Cinebench multicore scores. The 553.2% advantage in R15, R20, and R23 multicore tests indicates this processor is designed for rendering, simulation, and other heavily threaded server or workstation tasks. The Geekbench multicore result, while a smaller margin at 167.8%, still confirms a substantial lead in multi-threaded general-purpose computation.

The Intel Core i5-1235U wins in a very specific scenario: lightly threaded, bursty single-core performance where power consumption is a factor. Its Geekbench single-core score of 1609 is marginally above the EPYC's 1605. This suggests that for tasks that rely on a single thread and cannot leverage multiple cores, the mobile chip offers comparable, if not slightly better, responsiveness. The data also shows the Core i5-1235U has additional PassMark scores recorded, including data compression at 147450, data encryption at 9347, floating point math at 43303, and integer math at 48553, but no comparable PassMark scores exist for the EPYC 9354P in the database, so a direct comparison on those specific workloads is not possible from the recorded information.

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Core i5-1235U has a higher average benchmark score of 16770, compared to 15826 for the AMD EPYC 9354P. This is largely due to the inclusion of PassMark scores for the Intel chip, which are absent for the EPYC.

Q: How much faster is the AMD EPYC 9354P in the Cinebench R23 multicore test?

A: The EPYC 9354P scores 63840, while the Core i5-1235U scores 9774. This results in a 553.2% difference, meaning the AMD processor is over six times faster in this specific multi-threaded test.

Q: Does the Intel Core i5-1235U win any benchmark against the EPYC 9354P?

A: Yes, in the Geekbench single-core test, the Intel Core i5-1235U scores 1609, which is 0.2% higher than the EPYC 9354P's score of 1605. This is the only head-to-head benchmark the Intel chip wins.

Q: What is the difference in core and thread counts?

A: The AMD EPYC 9354P has 32 cores and 64 threads, while the Intel Core i5-1235U has 10 cores and 12 threads.

Q: What is the process node for each processor?

A: The AMD EPYC 9354P is built on a 5 nm process by TSMC, while the Intel Core i5-1235U uses a 10 nm process from Intel.

Q: Which processor has a higher boost clock?

A: The Intel Core i5-1235U has a boost clock of 4.40 GHz, which is higher than the AMD EPYC 9354P's boost clock of 3.80 GHz.

Specification Differences

The two processors differ in nearly every fundamental specification. The AMD EPYC 9354P has 32 cores and 64 threads, while the Intel Core i5-1235U has 10 cores and 12 threads. Base clocks are also very different: the EPYC runs at 3.25 GHz, while the Core i5-1235U has a base clock of 1300.00 MHz (1.30 GHz). Boost clocks are closer, with the EPYC at 3.80 GHz and the Intel chip at 4.40 GHz, giving the mobile part a 0.6 GHz advantage in turbo frequency.

The thermal design power (TDP) is a massive differentiator. The EPYC 9354P has a TDP of 280 watts, while the Core i5-1235U is rated at just 15 watts. This reflects their intended environments: the EPYC is designed for server sockets (AMD Socket SP5), while the Intel chip uses Intel BGA 1744, a mobile socket. Memory support also differs significantly: the EPYC supports DDR5 with a twelve-channel memory bus and a bandwidth of 460.8 GB/s, whereas the Core i5-1235U supports both DDR4 and DDR5 on a dual-channel bus, with no bandwidth figure recorded.

PCIe capabilities are another clear divergence. The EPYC 9354P offers Gen 5 with 128 lanes (CPU only), while the Core i5-1235U has Gen 4 with 20 lanes (CPU only). The EPYC supports ECC memory, the Intel chip does not. The Intel processor includes integrated graphics (Iris Xe 80EU), while the EPYC has no integrated graphics listed. The market segment is also distinct: the EPYC is for Server/Workstation, the Core i5-1235U is for Mobile.

Architecture Differences

The architectural divide is fundamental. The AMD EPYC 9354P is based on Zen 4 architecture, codenamed Genoa, part of the EPYC 9004 series. It is built on a 5 nm process at TSMC and uses a chiplet design with 8x 72 mm² dies, containing 52,560 million transistors. Its cache structure includes 64 KB of L1 per core, 1 MB of L2 per core, and a massive 256 MB of shared L3 cache. This large L3 cache is a key feature for server workloads with large datasets.

The Intel Core i5-1235U is based on Alder Lake architecture, specifically Alder Lake-U, part of the Core i5 generation. It is built on a 10 nm process at Intel. The cache layout differs: it has 80 KB of L1 per core, 1.25 MB of L2 per core, and a shared 12 MB of L3 cache. No transistor count or die size is recorded for the Intel chip. The Intel architecture uses a hybrid design with performance and efficiency cores, though the exact core type breakdown is not specified in the database. The EPYC 9354P was released on 2022-11-09, while the Core i5-1235U was released earlier, on 2022-02-22.

The Verdict

The data dictates a clear choice based on workload. For any server, workstation, or heavily multi-threaded application, the AMD EPYC 9354P is the only rational selection. Its 32 cores, 64 threads, and 256 MB of L3 cache provide a 553.2% advantage in Cinebench multicore tests over the Intel part. The 167.8% lead in Geekbench multicore further confirms its superiority in parallel processing. The EPYC also offers twelve-channel DDR5 memory with 460.8 GB/s bandwidth and 128 PCIe Gen 5 lanes, making it suitable for data center tasks that require massive I/O and memory throughput. Its launch MSRP is $2730, which reflects its position as a high-end server processor.

The Intel Core i5-1235U is the pick for mobile, power-constrained environments. Its 15-watt TDP and integrated Iris Xe graphics make it suitable for thin laptops. The single Geekbench single-core win, with a score of 1609 against the EPYC's 1605, shows that for everyday single-threaded tasks, it can match or slightly exceed the server chip. However, its 10 cores and 12 threads are insufficient for serious multi-threaded workloads, and its dual-channel memory and 20 PCIe Gen 4 lanes limit its expansion potential. The average benchmark score of 16770 for the Intel chip is higher than the EPYC's 15826, but this is driven by PassMark tests that are only recorded for the Intel part, not by superior performance in the shared benchmarks.

In summary, the AMD EPYC 9354P is the choice for compute density and parallel throughput, while the Intel Core i5-1235U is the choice for a portable, efficient single-threaded device. Neither processor is a substitute for the other; they serve entirely different market segments. The data shows no overlap in their intended use cases, and the benchmark results reinforce that separation.