AMD EPYC 9015 vs Intel Core Ultra 5 245KF Comparison

The Verdict

The data presents an unusual matchup: a server/workstation processor against a desktop processor, with the desktop part winning every single recorded benchmark. The AMD EPYC 9015, an 8-core, 16-thread Zen 5 part, loses all 11 head-to-head tests to the Intel Core Ultra 5 245KF, a 14-core, 14-thread Arrow Lake desktop chip. The Intel part outscores the AMD chip by margins ranging from 3.5% in physics to 53.2% in floating-point math.

For workloads measured in this database, the Intel Core Ultra 5 245KF is the clear performance leader. The EPYC 9015's only advantages lie outside raw benchmark scores: it supports ECC memory, offers twelve-channel memory bandwidth (576.0 GB/s versus 102.4 GB/s), and provides 128 PCIe Gen 5 lanes versus 20. These are platform-level features, not processing-speed advantages. The data shows the Intel part wins on every compute metric recorded, so any buyer prioritizing benchmark performance should choose the Core Ultra 5 245KF. The EPYC 9015 makes sense only when the server-specific platform features matter more than the measured compute scores.

The average benchmark scores tell a similar story: the EPYC 9015 averages 57,555 across its recorded tests, while the Core Ultra 5 245KF averages 55,093. The EPYC's average is higher despite losing every head-to-head test because the two processors were tested on different benchmark suites. The database records Cinebench scores for the Intel part but not for the AMD part, which skews the average comparison. The head-to-head tests, where both chips ran identical workloads, are the more reliable indicator, and those unanimously favor Intel.

Architecture Differences

The two processors come from fundamentally different design philosophies. The AMD EPYC 9015 uses the Zen 5 architecture, codenamed Turin, built on a 4 nm process at TSMC. It packs 16,630 million transistors across a dual-chiplet layout with a die size of 2x 70.6 mm². The Intel Core Ultra 5 245KF uses the Arrow Lake architecture, codenamed Arrow Lake-S, built on a 3 nm process, also at TSMC. It contains 17,800 million transistors on a single 243 mm² die.

Cache configurations diverge sharply. The EPYC 9015 has 80 KB of L1 per core, 1 MB of L2 per core, and 64 MB of shared L3. The Intel part has 192 KB of L1 per core, 3 MB of L2 per core, and only 24 MB of shared L3. The EPYC's large L3 cache is characteristic of server parts designed for data-heavy workloads, while the Intel chip relies on higher clock speeds and more physical cores.

Clock speeds favor Intel significantly. The Core Ultra 5 245KF has a base clock of 4.20 GHz and a boost clock of 5.20 GHz. The EPYC 9015 runs at 3.60 GHz base and 4.10 GHz boost. Both have a 125 W TDP, but the EPYC's lower clocks suggest it is tuned for sustained server operation rather than burst performance. The Intel part has an unlocked multiplier, while the EPYC does not, meaning the desktop chip can be overclocked.

Memory architecture could not be more different. The EPYC 9015 uses twelve-channel DDR5 with 576.0 GB/s of bandwidth and ECC support. The Intel part uses dual-channel DDR5 with 102.4 GB/s of bandwidth and no ECC. PCIe connectivity also differs: the EPYC offers 128 Gen 5 lanes (CPU only), while the Intel part offers 20 Gen 5 lanes (CPU only). The EPYC's platform is designed for massive I/O expansion in servers, while the Intel part targets desktop connectivity.

The EPYC 9015 belongs to the EPYC 9005 series and launched on 2024-10-09. The Intel Core Ultra 5 245KF belongs to the Core Ultra Series 2 and launched on 2024-10-23. Both are in the Active production status.

Head-to-Head Benchmarks

The head-to-head results are one-sided. The Intel Core Ultra 5 245KF wins all 11 recorded tests. The largest margin comes in floating-point math, where Intel scores 131,546 against AMD's 61,615, a 53.2% deficit for the EPYC. This suggests the Intel architecture handles floating-point operations far more efficiently, likely due to its higher clocks and different execution resources.

Data encryption shows a 46.7% gap: Intel scores 33,381, AMD scores 17,790. The Intel part more than doubles the AMD chip's encryption throughput. Single-thread performance also heavily favors Intel: 4,715 versus 3,265, a 30.8% lead. This is a direct reflection of the clock speed difference (5.20 GHz boost versus 4.10 GHz boost) and architectural efficiency.

Multithreaded performance gives Intel a 28.8% advantage: 43,110 versus 30,689. This is notable because the EPYC has 16 threads versus Intel's 14 threads, yet Intel still wins by nearly a third. The EPYC's extra threads do not compensate for its lower clocks and older (though newer-generation) server tuning. Random string sorting shows a 28% gap (55,206 versus 39,772), and prime number finding shows a 26.9% gap (416 versus 304).

Extended instructions favor Intel by 26.2% (37,912 versus 27,970). Data compression gives Intel a 23.3% lead (460,123 versus 353,014). The smallest margins are in integer math (6.4%, Intel at 98,854 versus AMD at 92,524) and physics (3.5%, Intel at 2,998 versus AMD at 2,893). The physics test is the closest contest, suggesting the EPYC remains competitive in workloads that stress physical simulation, but it still loses.

Specification Differences

The two processors differ in nearly every specification field. The EPYC 9015 has 8 cores and 16 threads, while the Core Ultra 5 245KF has 14 cores and 14 threads. The Intel part has more physical cores but no hyperthreading, giving it 14 threads total, while AMD enables simultaneous multithreading for 16 threads.

Base and boost clocks differ as described: Intel runs at 4.20/5.20 GHz, AMD at 3.60/4.10 GHz. Both have a 125 W TDP. Sockets are incompatible: AMD uses Socket SP5, Intel uses Socket 1851. Process nodes differ: AMD uses 4 nm, Intel uses 3 nm, both from TSMC. Transistor counts are close (16,630 million for AMD, 17,800 million for Intel), but die sizes are very different (2x 70.6 mm² versus 243 mm²).

Cache structures differ entirely. AMD provides 80 KB L1 per core, 1 MB L2 per core, and 64 MB shared L3. Intel provides 192 KB L1 per core, 3 MB L2 per core, and 24 MB shared L3. Memory support: both use DDR5, but AMD is twelve-channel with 576.0 GB/s bandwidth and ECC, while Intel is dual-channel with 102.4 GB/s and no ECC. PCIe: AMD has Gen 5 with 128 lanes, Intel has Gen 5 with 20 lanes. The EPYC has no integrated graphics, and neither does the Intel part. The EPYC is locked (multiplier not unlocked), while Intel is unlocked. Release dates differ by two weeks: 2024-10-09 for AMD, 2024-10-23 for Intel. The launch MSRP for the EPYC 9015 is $527; the launch MSRP for the Core Ultra 5 245KF is $294. Market segments differ: Server/Workstation versus Desktop.

FAQ

Q: Which processor has more cores?

A: The Intel Core Ultra 5 245KF has 14 cores, while the AMD EPYC 9015 has 8 cores. However, the EPYC has 16 threads versus Intel's 14 threads, due to simultaneous multithreading.

Q: Does the EPYC 9015 support ECC memory?

A: Yes, the EPYC 9015 supports ECC memory with a twelve-channel DDR5 bus providing 576.0 GB/s of bandwidth. The Intel Core Ultra 5 245KF does not support ECC and has a dual-channel bus with 102.4 GB/s of bandwidth.

Q: Which chip has higher single-thread performance?

A: The Intel Core Ultra 5 245KF scores 4,715 in the passmark single-thread test, compared to 3,265 for the EPYC 9015, a 30.8% advantage for Intel. This aligns with Intel's higher boost clock of 5.20 GHz versus 4.10 GHz.

Q: How many PCIe lanes does each processor provide?

A: The EPYC 9015 provides Gen 5, 128 lanes (CPU only). The Core Ultra 5 245KF provides Gen 5, 20 lanes (CPU only). The EPYC's lane count is six times higher, reflecting its server orientation.

Q: Which processor is newer?

A: The EPYC 9015 launched on 2024-10-09, and the Core Ultra 5 245KF launched on 2024-10-23. The Intel part is two weeks newer in release date.

Q: Are both processors unlocked for overclocking?

A: No. The Intel Core Ultra 5 245KF has an unlocked multiplier, while the AMD EPYC 9015 does not. This means only the Intel part can be overclocked.

Where Each One Wins

The Intel Core Ultra 5 245KF wins every benchmark in the head-to-head comparison. Its largest victories are in floating-point math (53.2% ahead), data encryption (46.7% ahead), and single-thread performance (30.8% ahead). It also wins multithreaded workloads by 28.8%, despite having fewer threads than the EPYC. For any compute-heavy task measured in this database, the Intel part is the faster processor. The data shows the Core Ultra 5 245KF is particularly strong in encryption and floating-point workloads, where its clock speed advantage translates into dramatic score differences.

The AMD EPYC 9015 wins no benchmark tests, but it wins on platform capabilities. It offers ECC memory support, twelve-channel memory bandwidth (576.0 GB/s versus 102.4 GB/s), and 128 PCIe Gen 5 lanes versus 20. These features make it suitable for server and workstation deployments where data integrity, memory throughput, and I/O expansion are critical. The EPYC's 64 MB of shared L3 cache, versus Intel's 24 MB, may also benefit cache-sensitive server workloads, though the recorded benchmarks do not show such an advantage. The EPYC's closest contest is physics (3.5% behind Intel), suggesting it remains competitive in simulation-type workloads even without winning.

The percentile rankings place both chips similarly: the EPYC 9015 sits at the 92nd percentile of all CPUs, while the Core Ultra 5 245KF sits at the 91st percentile. The nearest rivals reinforce this: the EPYC's closest competitor is the AMD Ryzen 9 9900X (0.1% higher average score), while the Intel part's closest rival is the AMD Ryzen 9 9900X3D (0.6% higher). The EPYC's average benchmark score of 57,555 is higher than Intel's 55,093, but this is due to different test suites, not because the EPYC is faster in shared tests. The head-to-head data is the definitive comparison, and it shows Intel winning every measurable compute test.