AMD EPYC 7313P vs Intel Core Ultra 5 245K Comparison

The Intel Core Ultra 5 245K and AMD EPYC 7313P occupy opposite ends of the hardware spectrum, yet both land in the 91st percentile of all CPUs. The data shows a desktop chip built for single-thread agility and a server processor designed for memory bandwidth and sustained multi-thread workloads. The Intel Core Ultra 5 245K wins 9 of 17 head-to-head benchmarks, while the AMD EPYC 7313P takes 8, but the nature of those wins matters more than the count. This is not a straightforward "one is better" comparison; it is a matter of matching the silicon to the workload.

The Verdict

The Intel Core Ultra 5 245K is the pick for anyone prioritizing raw single-core speed, floating-point math, and general desktop responsiveness. Its PassMark single-thread score of 4714 is 79% higher than the EPYC's 2634, and it leads by 4.7% in Cinebench R20 single-core. The AMD EPYC 7313P is the pick for server racks and workstations where multi-threaded Cinebench R23 performance, integer math, and memory bandwidth dominate. The EPYC's R23 multi-core score of 34952 beats the Intel's 25066 by 28.3%, and its 204.8 GB/s memory bandwidth is double the Intel's 102.4 GB/s. If you are building a gaming rig or a workstation for single-thread-heavy apps, the 245K is the obvious choice. If you are populating a server with VMs or processing large datasets that scale across 32 threads, the 7313P is the data-backed answer. The average benchmark scores are close — 54053 for Intel versus 53206 for AMD — but the workload profiles could not be more different.

Architecture Differences

The Intel Core Ultra 5 245K is built on Arrow Lake-S, a 3 nm process from TSMC, and uses a 14-core, 14-thread configuration. The AMD EPYC 7313P is based on Zen 3 (Milan), a 7 nm process from the same foundry, with 16 cores and 32 threads. The Intel chip has a base clock of 4.20 GHz and a boost of 5.20 GHz, while the EPYC runs at 3.00 GHz base and 3.70 GHz boost. The transistor counts are close — 17,800 million for Intel versus 16,600 million for AMD — but the die sizes diverge: the 245K is a single 243 mm² die, while the 7313P uses four 81 mm² chiplets. Cache layouts are fundamentally different. The 245K offers 192 KB L1 and 3 MB L2 per core, with 24 MB of shared L3. The 7313P has 64 KB L1 and 512 KB L2 per core, but a massive 128 MB of shared L3. Memory support splits the two: the Intel part uses dual-channel DDR5, while the AMD part uses eight-channel DDR4, giving the EPYC a 204.8 GB/s memory bandwidth advantage. The Intel chip includes Arc Xe-LPG integrated graphics with 64EU; the EPYC has none. PCIe lanes also differ sharply: the 245K provides 20 Gen 5 lanes, while the 7313P provides 128 Gen 4 lanes. The Intel part has an unlocked multiplier; the EPYC is locked. Both support ECC memory.

Head-to-Head Benchmarks

The biggest single-thread gap appears in PassMark single-thread, where the Intel Core Ultra 5 245K scores 4714 versus the EPYC's 2634, a 79% advantage. Cinebench R23 single-core tells a similar story for AMD, but in reverse: the EPYC scores 4934 against Intel's 2132, a 56.8% lead for AMD. This inconsistency is striking — the EPYC wins R23 single-core by a wide margin, yet loses PassMark single-thread by a wider one. The Cinebench R15 single-core test also favors AMD, with the EPYC at 497 versus Intel's 322, a 35.2% gap. The Intel chip wins Cinebench R20 single-core by 4.7% (2169 vs 2072). In multi-core tests, the results split by generation of the benchmark. Cinebench R15 multi-core goes to Intel by 9.3% (3850 vs 3522), and Cinebench R20 multi-core also goes to Intel by 4.7% (15368 vs 14679). But Cinebench R23 multi-core flips decisively to AMD, with the EPYC at 34952 versus Intel's 25066, a 28.3% margin. PassMark multi-thread favors Intel narrowly, 43047 vs 41121, a 4.7% difference.

Floating-point math is an Intel stronghold. The 245K scores 130678 in PassMark floating-point math, beating the EPYC's 82260 by 58.9%. The Intel chip also leads in PassMark extended instructions by 14.7% (37617 vs 32784) and in find prime numbers by 19.7% (414 vs 346). The AMD EPYC dominates integer math, scoring 145558 against Intel's 98524, a 32.3% lead. Data compression goes to AMD by 13.1% (528167 vs 458817), and random string sorting goes to AMD by 12% (62596 vs 55098). Data encryption is a narrower AMD win, 35727 vs 33286, a 6.8% margin. PassMark physics also favors AMD, with the EPYC at 4229 versus Intel's 3081, a 27.1% gap.

FAQ

Q: Which CPU has the higher single-thread performance in PassMark?

A: The Intel Core Ultra 5 245K, with a score of 4714 versus the AMD EPYC 7313P's 2634, a 79% advantage.

Q: Which CPU wins Cinebench R23 multi-core?

A: The AMD EPYC 7313P, scoring 34952 against the Intel Core Ultra 5 245K's 25066, a 28.3% lead.

Q: How do the memory bandwidth figures compare?

A: The AMD EPYC 7313P offers 204.8 GB/s via eight-channel DDR4, while the Intel Core Ultra 5 245K provides 102.4 GB/s via dual-channel DDR5.

Q: Do both CPUs support ECC memory?

A: Yes, both the Intel Core Ultra 5 245K and the AMD EPYC 7313P support ECC memory.

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

A: The Intel Core Ultra 5 245K has 14 cores and 14 threads, while the AMD EPYC 7313P has 16 cores and 32 threads.

Q: Which CPU has integrated graphics?

A: The Intel Core Ultra 5 245K includes Arc Xe-LPG Graphics with 64EU, while the AMD EPYC 7313P has no integrated graphics.

Where Each One Wins

The Intel Core Ultra 5 245K wins in scenarios that depend on single-thread speed and floating-point throughput. Its 79% lead in PassMark single-thread makes it the choice for lightly-threaded applications like legacy games, office productivity, and any software that relies on one fast core. The 58.9% advantage in floating-point math points to scientific calculations, 3D rendering previews, and audio processing that use FPU-heavy code. The 14.7% win in extended instructions suggests the 245K handles modern SIMD workloads better, and the 19.7% edge in prime number finding indicates faster integer loops in certain algorithmic tasks. For a desktop user, the 245K's 5.20 GHz boost clock and unlocked multiplier provide headroom for tuning, and the integrated graphics mean a system can run without a discrete GPU for basic display output.

The AMD EPYC 7313P wins where thread count and memory bandwidth matter. The 28.3% lead in Cinebench R23 multi-core reflects its 32 threads versus 14, making it the better fit for video encoding, 3D rendering, and compile jobs that scale across all cores. The 32.3% advantage in integer math and the 13.1% lead in data compression point to database operations, file archiving, and server-side processing. The 12% win in random string sorting and the 6.8% edge in encryption align with server workloads like log processing and secure data handling. The 27.1% lead in physics simulation suggests better multi-threaded physics engine performance. The EPYC's 204.8 GB/s memory bandwidth, enabled by eight-channel DDR4, gives it a significant edge in memory-bound tasks like large in-memory databases and virtual machine hosting. The 128 MB of L3 cache is also a major asset for working sets that exceed the 245K's 24 MB. The 128 PCIe Gen 4 lanes allow the EPYC to connect to far more storage and networking devices than the 245K's 20 Gen 5 lanes. In short, the 245K is built to win on single-thread responsiveness and FP math; the 7313P is built to win on parallel throughput, integer work, and memory capacity.

Specification Differences

The two CPUs differ on nearly every core specification. The Intel Core Ultra 5 245K has 14 cores and 14 threads; the AMD EPYC 7313P has 16 cores and 32 threads. Base clocks are 4.20 GHz for Intel versus 3.00 GHz for AMD, and boost clocks are 5.20 GHz versus 3.70 GHz. TDP is 125W for the 245K and 155W for the 7313P. The process node is 3 nm for Intel and 7 nm for AMD. The Intel part uses a single 243 mm² die, while the AMD part uses four 81 mm² chiplets. L1 cache is 192 KB per core on Intel versus 64 KB per core on AMD. L2 cache is 3 MB per core on Intel versus 512 KB per core on AMD. L3 cache is 24 MB shared on Intel versus 128 MB shared on AMD. Memory support is dual-channel DDR5 for Intel and eight-channel DDR4 for AMD, with memory bandwidth of 102.4 GB/s versus 204.8 GB/s. PCIe support is Gen 5 with 20 lanes on Intel versus Gen 4 with 128 lanes on AMD. The 245K has integrated Arc Xe-LPG Graphics with 64EU; the 7313P has none. The Intel chip has an unlocked multiplier; the AMD chip does not. The launch MSRP is $319 for the Intel Core Ultra 5 245K and $913 for the AMD EPYC 7313P.