AMD EPYC 4245P vs Intel Core Ultra 5 235T Comparison

The AMD EPYC 4245P and Intel Core Ultra 5 235T present a compelling contrast in modern CPU design, pitting a 6-core server-oriented Zen 5 part against a 14-core desktop Arrow Lake processor. Both are 65W TDP parts that land in the same performance percentile (86th), yet they achieve comparable average scores through entirely different means. The data shows a near-tie in aggregate performance—the EPYC 4245P averages 39215 across the benchmark suite versus 38561 for the Core Ultra 5 235T—but the distribution of wins reveals distinct architectural philosophies.

Head-to-Head Benchmarks

The head-to-head results are decisively lopsided in favor of the AMD EPYC 4245P, which claims victory in 14 of the 17 recorded benchmarks. The Cinebench suite is a clean sweep for AMD, though by remarkably narrow margins. In Cinebench R23 multi-core, the EPYC 4245P scores 26618 against 26232 for the Intel part, a 1.5% advantage. The single-core R23 result follows the same pattern: 3757 versus 3703, again a 1.5% lead. This consistency extends across R15 and R20, where AMD wins by 1.4% and 1.5% in multi-core, and 1.3% and 1.4% in single-core, respectively. These are margin-of-error differences in real-world terms, but they do indicate that the Zen 5 core design holds a slight IPC edge over Arrow Lake's performance cores in rendering workloads.

Where AMD truly separates itself is in the Passmark productivity and integer-heavy tests. The data compression test shows the EPYC 4245P scoring 339408 against 295100 for Intel—a commanding 15% lead. Extended instructions favor AMD by 14.4% (26547 versus 23212), while integer math shows a 12.9% advantage (95120 versus 84244). Random string sorting adds another 12.8% win for AMD (39916 versus 35377). The physics test is the largest single win for AMD at 22.3% (2637 versus 2157), suggesting that the Zen 5 architecture handles the physics simulation workload with substantially greater efficiency.

The Intel Core Ultra 5 235T does not go down without a fight, and its three wins are significant in magnitude. The most dramatic is floating-point math, where Intel crushes AMD by 45.6%—scoring 106546 versus 57965. This is a massive reversal of the integer results and points to the Arrow Lake design having a fundamentally stronger FPU pipeline. The find prime numbers test also goes decisively to Intel, with a 318 score against AMD's 193, a 39.3% advantage. Data encryption is the third Intel win, with 23457 versus 18466, a 21.3% margin. These three workloads are computationally distinct from the Cinebench and integer tests, and they highlight that the Intel part is not merely slower—it is specialized in ways that AMD's Zen 5 is not.

Where Each One Wins

The benchmark distribution paints a clear picture of workload suitability. The AMD EPYC 4245P is the choice for general multi-threaded productivity and integer-heavy computation. Its 15% lead in data compression, 14.4% in extended instructions, and 12.9% in integer math suggest that database operations, scientific computing, and code compilation would all favor AMD. The 22.3% physics win is notable for any simulation or physics-based workload. The single-thread performance advantage, although small at 5.4% (4575 versus 4339 in Passmark single-thread), gives AMD the edge in lightly-threaded applications where per-core speed matters.

The Intel Core Ultra 5 235T owns the floating-point domain. A 45.6% lead in floating-point math is not incremental—it is a generational gap in FP throughput. This makes Intel the better choice for workloads like financial modeling, 3D rendering that relies on FP, scientific simulations, and any AI inference that depends on FP32 or FP64 operations. The 39.3% win in prime number finding indicates strong integer bit-manipulation capabilities, which can translate to cryptography and hashing workloads. The data encryption win of 21.3% reinforces this: Intel's AES-NI and related instruction paths are clearly more efficient than what AMD offers.

For mixed or general-purpose use, the Passmark multi-thread score is nearly identical (31063 for AMD versus 30918 for Intel, a 0.5% difference). This means that for a typical desktop user running a variety of applications, the choice between these two comes down to specific workload composition rather than overall capability. The EPYC 4245P's server market segment suggests it is optimized for sustained throughput in server-style workloads, while the Core Ultra 5 235T's desktop segment points toward interactive and FP-heavy applications.

Architecture Differences

The architectural gulf between these two processors is substantial. AMD's EPYC 4245P uses the Zen 5 architecture on a 4nm TSMC process, codenamed Grado, with 8,315 million transistors packed into a 70.6 mm² die. This is a compact, power-efficient design that achieves its performance through high clock speeds and a refined core design. The base clock is 3.90 GHz with a boost of 5.40 GHz, which is notably higher than Intel's figures.

Intel's Core Ultra 5 235T uses the Arrow Lake architecture on a 3nm TSMC process, with the Arrow Lake-S codename. It is a much larger chip: 17,800 million transistors across a 243 mm² die. This is more than double the transistor count and more than triple the die area of the AMD part. Intel's base clock is significantly lower at 2.20 GHz, though the boost reaches 5.00 GHz. The 3nm process node is more advanced than AMD's 4nm, but the larger die size suggests Intel is spending the transistor budget on a more complex core layout and a larger integrated graphics unit.

The cache hierarchy differs substantially. AMD provides 80 KB of L1 per core, 1 MB of L2 per core, and a 32 MB shared L3 pool. Intel offers 192 KB of L1 per core and 3 MB of L2 per core, but only 24 MB of shared L3. Intel's larger per-core L1 and L2 caches are designed to feed its wider execution units, while AMD's larger L3 suggests a greater reliance on shared cache for inter-core communication and data reuse.

The integrated graphics solutions are also different. AMD includes Radeon Graphics, while Intel mounts Arc Xe-LPG Graphics 24EU. Both are integrated solutions, but they are built on entirely different architectures and will have different driver and feature support.

Specification Differences

The core and thread counts are the most visible divergence. AMD offers 6 cores and 12 threads, enabling simultaneous multithreading, while Intel provides 14 cores and 14 threads with no hyperthreading. Despite Intel having more than double the core count, AMD's threading allows it to stay competitive in multi-threaded benchmarks.

Clock speeds favor AMD in both base and boost. The EPYC 4245P runs at 3.90 GHz base and 5.40 GHz boost, versus Intel's 2.20 GHz base and 5.00 GHz boost. The 0.4 GHz boost advantage for AMD is significant for single-threaded responsiveness.

Memory bandwidth favors Intel. The Core Ultra 5 235T supports 102.4 GB/s of dual-channel DDR5 bandwidth, while the EPYC 4245P provides 89.6 GB/s. Both are dual-channel, but Intel's memory controller is more efficient.

PCIe lane counts differ: AMD provides 24 lanes of Gen 5 on the CPU, while Intel offers 20 lanes of Gen 5. This gives AMD more headroom for expansion cards and NVMe storage.

ECC memory support is exclusive to AMD. The EPYC 4245P supports ECC, while the Intel part does not. This is a critical differentiator for server and workstation reliability.

The sockets are incompatible: AMD uses Socket AM5, while Intel uses Socket 1851. The market segments differ, with AMD targeting Server/Workstation and Intel targeting Desktop.

The release dates and MSRPs differ: AMD launched on 2025-05-12 with a $239 launch MSRP, while Intel launched earlier on 2025-01-06 with a $247 launch MSRP.

FAQ

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

A: The AMD EPYC 4245P leads in single-core benchmarks across the board. It scores 4575 in Passmark single-thread versus 4339 for the Intel Core Ultra 5 235T, a 5.4% advantage. In Cinebench R23 single-core, AMD scores 3757 against 3703 for Intel, a 1.5% lead.

Q: Why does the Intel Core Ultra 5 235T have more cores but lose in multi-core tests?

A: Despite Intel's 14 cores versus AMD's 6, the AMD EPYC 4245P has 12 threads thanks to simultaneous multithreading, while Intel has 14 threads with no SMT. AMD's higher clock speeds (3.90 GHz base, 5.40 GHz boost) and superior per-core efficiency allow it to win multi-core benchmarks like Cinebench R23 (26618 versus 26232) and Passmark multi-thread (31063 versus 30918).

Q: Which processor is better for floating-point intensive workloads?

A: The Intel Core Ultra 5 235T is decisively better for floating-point math. It scores 106546 in Passmark floating-point math versus 57965 for AMD, a 45.6% advantage. This makes Intel the preferred choice for scientific computing, 3D rendering, and financial modeling that rely heavily on FP operations.

Q: Does either processor support ECC memory?

A: Only the AMD EPYC 4245P supports ECC memory. This is a significant feature for server and workstation use cases where data integrity is critical. The Intel Core Ultra 5 235T does not support ECC, which limits its suitability for mission-critical applications.

Q: How do the integrated graphics compare?

A: The AMD EPYC 4245P includes Radeon Graphics, while the Intel Core Ultra 5 235T features Arc Xe-LPG Graphics 24EU. Both are integrated solutions, but they are built on different architectures. The data does not include specific graphics benchmarks, so a direct performance comparison is not possible.

Q: Which processor offers more PCIe lanes?

A: The AMD EPYC 4245P provides 24 lanes of PCIe Gen 5, while the Intel Core Ultra 5 235T offers 20 lanes of PCIe Gen 5. This gives AMD more headroom for additional expansion cards, NVMe storage, or high-bandwidth peripherals.