AMD EPYC 7303

The AMD EPYC 7303 is a 16-core, 32-thread server processor built on the Zen 3 architecture and codenamed Milan. It operates within the EPYC 7003 series, featuring a base clock of 2.40 GHz and a boost clock of 3.40 GHz. The chip is manufactured on a 7 nm process at TSMC, with a transistor count of 8,300 million and a die size of 2x 81 mm². It supports DDR4 memory across an eight-channel bus, delivering a memory bandwidth of 204.8 GB/s, and includes ECC memory support. The processor fits the AMD Socket SP3 and provides PCIe Gen 4 with 128 lanes (CPU only). It was released on September 4, 2023, with a launch MSRP of $604. Benchmark data places it in the 92nd percentile of all CPUs, with an average benchmark score of 45,960.

How It Compares

The EPYC 7303 sits in a tight competitive cluster, with its nearest rivals all within a 1% average score range. Against the Intel Core i5-14600, the EPYC 7303 posts an average score of 45,960 versus 45,594, a delta of 0.8% in favor of the AMD part. This is a marginal lead, effectively a statistical tie in aggregate benchmarks, but the EPYC 7303 brings server-class features like eight-channel memory and 128 PCIe lanes that the desktop-oriented i5-14600 cannot match. The delta is small enough that workload-specific tests will determine the winner.

Comparing to the AMD Ryzen AI 9 HX 375, the EPYC 7303 trails by 0.8%, with the Ryzen scoring 46,329 against 45,960. The Ryzen AI 9 HX 375 is a mobile-focused part, yet it edges out the server chip in average score. This indicates that the EPYC 7303’s advantage lies not in raw aggregate throughput but in its platform capabilities — memory bandwidth, ECC support, and PCIe lane count — which are absent from the Ryzen AI 9 HX 375’s specifications. The performance gap is negligible for most server workloads.

The AMD EPYC 4344P is another close competitor, with an average score of 45,586 versus 45,960, giving the EPYC 7303 a 0.8% lead. Both are server processors, but the 4344P is from a different EPYC generation and platform. The 7303’s edge in average score is small, but the 7303 offers a larger L3 cache at 64 MB shared, which can benefit certain multi-threaded workloads. The 0.8% delta suggests they are interchangeable in generic throughput, with cache-sensitive tasks favoring the 7303.

Finally, the Intel Core Ultra 9 285T posts an average score of 46,409, which is 1% higher than the EPYC 7303’s 45,960. This is the largest delta among the nearest rivals, yet still a modest single-percentage-point gap. The Core Ultra 9 285T is a low-power desktop part, so its lead in average score is notable, but it lacks the EPYC 7303’s server infrastructure — eight-channel DDR4, ECC memory, and 128 PCIe Gen 4 lanes. The data shows the 7303 is competitive on raw scores while offering a different feature set.

Power and Thermals

The EPYC 7303 carries a TDP of 130 watts, placing it in a moderate power class for server processors. This TDP figure implies that a capable air cooler or a low-profile server heatsink is sufficient for standard operation, given the 130-watt envelope. The architecture is Zen 3 on a 7 nm process, which contributes to efficiency, but the 8,300 million transistors and dual 81 mm² dies mean thermal management is still a consideration in dense server chassis. For a 16-core part, 130 watts is a reasonable balance between performance and cooling requirements, allowing deployment in 1U or 2U servers with adequate airflow. The socket is AMD Socket SP3, which is designed for EPYC platforms, so cooling solutions must match this server socket rather than consumer mounts. The data does not specify thermal throttling behavior, but the 130-watt TDP class suggests that standard server cooling — typically a passive heatsink with chassis fans — will handle the load. Overclocking is not supported, as the multiplier is locked, so thermals remain within the designed envelope. The eight-channel memory controller and 128 PCIe lanes add to the platform’s power draw, but the CPU TDP is the primary thermal specification. In practice, the 130-watt figure is modest for a 16-core server chip, making it suitable for power-conscious data centers.

Benchmark Performance

Benchmark results for the EPYC 7303 show strong multi-threaded performance, with a Cinebench R23 multi-core score of 24,286. In Cinebench R20, the multi-core score is 10,200, and in the older R15 test it reaches 2,448. These figures indicate that the 16 cores scale well across rendering workloads. Single-core performance is also respectable: Cinebench R23 single-core scores 3,428, R20 scores 1,439, and R15 scores 345. Compared to its nearest rivals, the EPYC 7303’s average score of 45,960 is 0.8% above the Intel Core i5-14600 (45,594) and the AMD EPYC 4344P (45,586). It trails the AMD Ryzen AI 9 HX 375 by 0.8% (46,329) and the Intel Core Ultra 9 285T by 1% (46,409). These deltas are minor, suggesting the EPYC 7303 is competitive in general-purpose compute.

In PassMark tests, the EPYC 7303 excels in specific workloads. The integer math score is 113,422, while floating point math reaches 64,940. Data compression scores 428,319, which is a strong result for server tasks involving archiving or databases. Data encryption scores 25,167, and extended instructions (SIMD) score 31,603. The multi-thread score is 28,572, with a single-thread score of 1,460. The physics score is 1,792, and random string sorting scores 42,259. The find prime numbers score is 180, which is comparatively low, indicating that prime-number-finding is not a strength. The data shows that the EPYC 7303 is balanced across most PassMark subtests, with particular strength in integer math and data compression. The 92nd percentile ranking across all CPUs confirms that this is a high-performing part, even if the nearest rivals are within 1% in average score.

FAQ

Q: What is the launch MSRP of the AMD EPYC 7303?

A: The launch MSRP is $604.

Q: How many cores and threads does the EPYC 7303 have?

A: It has 16 cores and 32 threads.

Q: What is the TDP of the EPYC 7303, and what cooling does it require?

A: The TDP is 130 watts, which implies a capable air cooler or standard server cooling is sufficient.

Q: What memory type and bus width does the EPYC 7303 support?

A: It supports DDR4 memory across an eight-channel bus, with a memory bandwidth of 204.8 GB/s, and includes ECC memory support.

Q: How does the EPYC 7303 compare to the Intel Core i5-14600 in average benchmark score?

A: The EPYC 7303 scores 45,960, which is 0.8% higher than the Intel Core i5-14600’s 45,594.

Q: What is the EPYC 7303’s percentile ranking among all CPUs?

A: It is in the 92nd percentile of all CPUs.

Who Should Consider It

The EPYC 7303 is suited for server and workstation workloads that benefit from high core counts and platform features. For gaming, the single-thread score of 3,428 in Cinebench R23 is respectable, but the lack of integrated graphics and the server-oriented platform make it a poor fit for consumer gaming builds; the 128 PCIe Gen 4 lanes and eight-channel memory are overkill for gaming. For content creation, the Cinebench R23 multi-core score of 24,286 and PassMark integer math score of 113,422 indicate strong performance in rendering, video encoding, and 3D modeling. The data compression score of 428,319 is particularly useful for archival and backup tasks. For office and enterprise workloads, the ECC memory support and eight-channel DDR4 bandwidth of 204.8 GB/s make it ideal for database servers, virtualization hosts, and scientific computing. The 16 cores and 32 threads handle multi-threaded server applications efficiently, while the 64 MB shared L3 cache aids in cache-sensitive workloads. The 92nd percentile ranking confirms it is a high-end part, but the nearest rivals show that average scores are similar — so the choice hinges on platform needs. If you require ECC memory, eight-channel bandwidth, or 128 PCIe Gen 4 lanes, the EPYC 7303 is the clear pick. If raw single-thread performance is the priority, the Intel Core Ultra 9 285T’s 1% lead might be considered, but it lacks server features. The EPYC 7303 is also active in production, ensuring ongoing availability. The 130-watt TDP makes it feasible for power-constrained data centers, and the locked multiplier means no overclocking, which is typical for server stability. Overall, the EPYC 7303 is a balanced server processor that excels in throughput-heavy tasks, with its benchmark deltas to rivals being negligible in real-world server deployments.