AMD EPYC 7453 vs Intel Core i3-1305U Comparison

Head-to-Head Benchmarks

The benchmark data presents an unusually one-sided comparison. Across all six Cinebench tests recorded in the database, the AMD EPYC 7453 dominates the Intel Core i3-1305U by a staggering margin. The smallest delta is 473.4%, and the largest reaches 474.4%. These are not incremental differences; they represent entirely different performance classes.

In Cinebench R23 multi-core, the EPYC 7453 scores 41,185 points against the i3-1305U's 7,183. That is a 473.4% advantage, a figure that reflects the sheer difference in core and thread resources. The single-core R23 result tells a similar story: 5,814 versus 1,014, a 473.4% gap. It is worth remembering even in single-threaded workloads, where the i3-1305U's 4.50 GHz boost clock might be expected to help, the EPYC 7453 remains far ahead. This suggests that per-core efficiency, memory bandwidth, or both are decisive factors.

Moving to Cinebench R20, the pattern holds. The EPYC 7453 posts 17,297 in multi-core, while the i3-1305U manages 3,016, a 473.5% difference. In single-core R20, the scores are 2,441 and 425, respectively, a 474.4% gap, the largest delta in the entire head-to-head set. The R15 results are similarly lopsided: 4,151 versus 723 in multi-core (474.1%) and 585 versus 102 in single-core (473.5%).

The EPYC 7453 wins all six recorded head-to-head benchmarks. There is no workload category in this dataset where the Intel part closes the gap. The i3-1305U's best relative performance appears in R15 single-core, but even there it trails by 473.5%. For context, the EPYC 7453's average benchmark score of 11,912 places it at the 67th percentile of all CPUs, while the i3-1305U's average of 11,200 sits at the 66th percentile. Despite the massive Cinebench deltas, the two parts occupy nearly the same percentile rank overall, a reminder that average scores across mixed workloads can obscure extreme differences within specific test types.

FAQ

Q: Which processor wins in multi-core Cinebench workloads?

A: The AMD EPYC 7453 wins every multi-core test by a wide margin. In Cinebench R23 multi-core, it scores 41,185 versus the Intel Core i3-1305U's 7,183, a 473.4% advantage. The R20 multi-core result is 17,297 versus 3,016 (473.5%), and R15 multi-core is 4,151 versus 723 (474.1%).

Q: Does the Intel Core i3-1305U win any single-core test?

A: No. The EPYC 7453 also wins all three single-core Cinebench tests. In R23 single-core, the scores are 5,814 versus 1,014 (473.4%). In R20 single-core, they are 2,441 versus 425 (474.4%). In R15 single-core, they are 585 versus 102 (473.5%).

Q: What is the average benchmark score for each processor?

A: The EPYC 7453 has an average benchmark score of 11,912, ranking at the 67th percentile of all CPUs. The i3-1305U has an average of 11,200, ranking at the 66th percentile.

Q: How does the EPYC 7453 compare to its nearest rivals in the database?

A: The EPYC 7453's nearest rival is the Intel Core i7-7700 with an average score of 11,914, a delta of 0%. The AMD Ryzen 5 3500X scores 12,000 (0.7% higher), the Intel Xeon Bronze 3408U scores 12,019 (0.9% higher), and the Intel Xeon Gold 6314U scores 12,026 (0.9% higher).

Q: How does the i3-1305U compare to its nearest rivals in the database?

A: The i3-1305U's nearest rival is the Intel Xeon Gold 6336Y with an average score of 11,191, a delta of 0.1% in favor of the i3. The AMD Ryzen 5 3500U scores 11,176 (0.2% lower), the AMD EPYC 7542 scores 11,152 (0.4% lower), and the AMD EPYC 7452 scores 11,279 (0.7% higher).

Q: Which processor has the higher boost clock?

A: The Intel Core i3-1305U has a boost clock of 4.50 GHz, while the AMD EPYC 7453 boosts to 3.45 GHz. Despite this clock advantage, the EPYC 7453 still wins all single-core benchmarks by over 473%.

Where Each One Wins

The AMD EPYC 7453 wins in every recorded Cinebench benchmark, both multi-core and single-core. Its dominance is absolute within this dataset. The 28-core, 56-thread configuration with a 64 MB shared L3 cache and eight-channel DDR4 memory provides an overwhelming resource advantage in rendering and compute-heavy workloads. The data shows a 473.4% lead in R23 multi-core and a 474.4% lead in R20 single-core, the latter being the largest margin recorded. For server, workstation, or any throughput-oriented task, the EPYC 7453 is the clear choice based on these measurements.

The Intel Core i3-1305U does not win any benchmark in the head-to-head comparison. However, its profile suggests different strengths that are not captured in the Cinebench results. It is a mobile processor with a 15 W TDP, integrated UHD Graphics 64EU, and support for both DDR4 and DDR5 memory. The database shows it has its own set of PassMark results, including a single-thread score of 3,115, a data compression score of 92,767, and a floating-point math score of 19,687. These figures are not directly compared against the EPYC 7453 in the head-to-head set, but they indicate that the i3-1305U is a functional general-purpose mobile chip. Its lower power envelope and integrated graphics make it suited for laptops and compact systems where the EPYC 7453's 225 W TDP and socketed server platform would be impractical.

In practical terms, the EPYC 7453 is for dense compute, virtualization, and multi-tenant workloads where raw thread count and memory bandwidth matter. The i3-1305U is for portable, power-constrained devices where the absence of a discrete GPU and a modest thermal budget are acceptable. The benchmark data does not place them in direct competition outside of Cinebench, and the results reflect that.

Specification Differences

The two processors differ in nearly every fundamental specification. The AMD EPYC 7453 has 28 cores and 56 threads, while the Intel Core i3-1305U has 5 cores and 6 threads. Base clocks are 2.75 GHz for the EPYC and 1600.00 MHz for the i3. Boost clocks are 3.45 GHz and 4.50 GHz, respectively. The EPYC 7453 has a TDP of 225 W, the i3-1305U a TDP of 15 W.

Memory support diverges sharply. The EPYC 7453 uses DDR4 with an eight-channel memory bus and a recorded bandwidth of 204.8 GB/s. The i3-1305U supports both DDR4 and DDR5 but uses a dual-channel bus, and no bandwidth figure is recorded. ECC memory is supported by the EPYC 7453 but not by the i3-1305U.

PCIe lanes also differ: the EPYC 7453 provides Gen 4 with 128 lanes (CPU only), while the i3-1305U provides Gen 4 with 8 lanes (CPU only). The i3-1305U includes integrated UHD Graphics 64EU; the EPYC 7453 has no integrated graphics. The EPYC 7453 uses AMD Socket SP3, the i3-1305U uses Intel BGA 1744. The launch MSRP for the EPYC 7453 is $1570, and for the i3-1305U it is $309.

Architecture Differences

The AMD EPYC 7453 is built on Zen 3 architecture with the Milan codename, part of the EPYC 7003 series. It uses a 7 nm process node fabricated by TSMC, with 16,600 million transistors and a die size of 4x 81 mm². The cache hierarchy consists of 64 KB of L1 per core, 512 KB of L2 per core, and 64 MB of shared L3. It was released in 2021 and remains in active production.

The Intel Core i3-1305U is built on Raptor Lake architecture with the Raptor Lake-U codename. It uses a 10 nm process node fabricated by Intel. No transistor count or die size is recorded. The cache hierarchy consists of 80 KB of L1 per core, 1.25 MB of L2 per core, and 10 MB of shared L3. It was released in 2023 and is also in active production.

The architectural philosophies are distinct. The EPYC 7453 maximizes core count, cache capacity, and memory bandwidth for server workloads. The i3-1305U prioritizes power efficiency, integrated graphics, and a compact mobile package. The process node advantage belongs to AMD (7 nm versus 10 nm), and the transistor count difference is substantial, though the i3's figure is not recorded. The EPYC 7453 supports ECC memory, the i3 does not. The EPYC 7453 has no integrated graphics, the i3 includes UHD Graphics 64EU. Both use PCIe Gen 4, but with vastly different lane counts. Neither processor has an unlocked multiplier.

The benchmark results align with these architectural differences. The EPYC 7453's 56 threads and 64 MB L3 cache drive its multi-core scores, while its single-core lead over the i3, despite a lower boost clock, points to the efficiency of Zen 3 at the 7 nm node and the benefits of a larger memory subsystem. The i3-1305U, with only 6 threads and 10 MB L3, is not designed to compete in the same compute class. The recorded data confirms this: every Cinebench delta exceeds 473%.