AMD EPYC 7552 vs AMD Ryzen 3 7320C Comparison

The AMD Ryzen 3 7320C and AMD EPYC 7552 represent two extremes of the Zen 2 architecture, but they are not remotely in the same performance class. The benchmark data is unambiguous: the EPYC 7552 wins every single head-to-head test, often by a margin of roughly 85%. The Ryzen 3 7320C is a low-power mobile processor, while the EPYC 7552 is a server behemoth with 12 times the core count. This analysis will break down the numbers, examine the architectural differences, and clarify which processor is suited for which workload.

Head-to-Head Benchmarks

The results are decisive. In Cinebench R23 multi-core, the EPYC 7552 scores 48,801 points against the Ryzen 3 7320C’s 7,025, a delta of -85.6%. This means the EPYC is roughly 6.9 times faster in heavily threaded rendering. The same pattern holds in Cinebench R20 multi-core, where the EPYC’s 20,496 score dwarfs the Ryzen’s 2,950, again a -85.6% delta. In Cinebench R15 multi-core, the EPYC scores 4,919 versus 708, with the same negative delta for the Ryzen.

Single-core performance tells a similar story, though the absolute gap is smaller. In Cinebench R23 single-core, the EPYC 7552 scores 6,889, while the Ryzen 3 7320C manages just 991, a -85.6% delta. The EPYC’s advantage here is not just about core count; its higher boost clock of 3.30 GHz compared to the Ryzen’s 4.10 GHz does not compensate for the architectural differences at this scale. The EPYC wins Cinebench R20 single-core with 2,893 against 416, and Cinebench R15 single-core with 694 against 99. In every single benchmark, the deltaPct is exactly -85.6%, indicating a consistent and overwhelming performance lead for the EPYC 7552.

The Ryzen 3 7320C does have a notable advantage in the Passmark suite, which the head-to-head table does not include. Its Passmark single-thread score is 2,439, and its multithread score is 8,265. While these are not directly compared against EPYC scores in the provided data, the Ryzen’s average benchmark score of 14,277 places it near the EPYC’s 14,115. This suggests that in mixed, lower-thread-count workloads, the Ryzen 3 7320C is not as far behind as the Cinebench results imply. However, for any sustained, multi-threaded task, the EPYC’s 48-core advantage is insurmountable.

Architecture Differences

Both processors use the Zen 2 architecture, but they are built on different process nodes and for entirely different markets. The Ryzen 3 7320C is a Mendocino part, built on TSMC’s 6 nm process with a die size of 100 mm². The EPYC 7552 is a Rome part, built on TSMC’s 7 nm process with a die size of 74 mm² and 3,800 million transistors. The Ryzen is a monolithic design; the EPYC is a chiplet-based design, which explains the smaller die size despite having far more cores.

Core counts are the defining difference. The Ryzen 3 7320C has 4 cores and 8 threads, while the EPYC 7552 has 48 cores and 96 threads. Cache hierarchies reflect this disparity. The Ryzen has 64 KB of L1 per core, 512 KB of L2 per core, and a shared 4 MB of L3. The EPYC has 96 KB of L1 per core, 512 KB of L2 per core, and a massive 192 MB of shared L3. This 48x difference in L3 cache is critical for server workloads with large working sets.

Memory support is another major divergence. The Ryzen 3 7320C supports LPDDR5 memory in a dual-channel configuration, with a bandwidth of 88.0 GB/s and no ECC support. The EPYC 7552 supports DDR4 memory in an eight-channel configuration, with a bandwidth of 204.8 GB/s and full ECC support. The EPYC’s memory bandwidth is more than double, which is essential for feeding 48 cores. The Ryzen integrates a Radeon 610M GPU; the EPYC has no integrated graphics, relying on a discrete GPU or a remote management controller.

PCIe connectivity also differs. The Ryzen 3 7320C offers Gen 3 with 4 lanes (CPU only), while the EPYC 7552 offers Gen 4 with 128 lanes (CPU only). This makes the EPYC vastly more expandable, supporting many high-speed NVMe drives and network cards. The sockets are incompatible: the Ryzen uses AMD Socket FT6, while the EPYC uses AMD Socket SP3.

FAQ

Q: Which processor has a higher boost clock?

A: The AMD Ryzen 3 7320C has a boost clock of 4.10 GHz, while the AMD EPYC 7552 has a boost clock of 3.30 GHz. Despite this, the EPYC wins all single-core Cinebench tests by a wide margin.

Q: Does the AMD EPYC 7552 support error-correcting memory?

A: Yes, the EPYC 7552 supports ECC memory. The Ryzen 3 7320C does not support ECC memory.

Q: What is the TDP difference between the two?

A: The Ryzen 3 7320C has a TDP of 15 watts, while the EPYC 7552 has a TDP of 200 watts. This reflects the EPYC’s much higher core count and performance envelope.

Q: Which processor has a smaller manufacturing process node?

A: The Ryzen 3 7320C is built on a 6 nm process, while the EPYC 7552 is built on a 7 nm process. The Ryzen’s node is slightly more advanced despite being the lower-tier product.

Q: What is the L3 cache capacity of each processor?

A: The Ryzen 3 7320C has 4 MB of shared L3 cache. The EPYC 7552 has 192 MB of shared L3 cache, which is 48 times larger.

Q: Which processor has a higher average benchmark score?

A: The Ryzen 3 7320C has an average benchmark score of 14,277, while the EPYC 7552 has an average score of 14,115. The Ryzen is slightly ahead in this aggregate metric, despite losing every Cinebench head-to-head test.

Specification Differences

The two processors differ in nearly every measurable specification.

• Cores: 4 (Ryzen) vs 48 (EPYC)
• Threads: 8 (Ryzen) vs 96 (EPYC)
• Base Clock: 2.40 GHz (Ryzen) vs 2.20 GHz (EPYC)
• Boost Clock: 4.10 GHz (Ryzen) vs 3.30 GHz (EPYC)
• TDP: 15 W (Ryzen) vs 200 W (EPYC)
• Socket: AMD Socket FT6 (Ryzen) vs AMD Socket SP3 (EPYC)
• Process Node: 6 nm (Ryzen) vs 7 nm (EPYC)
• Die Size: 100 mm² (Ryzen) vs 74 mm² (EPYC)
• L1 Cache: 64 KB per core (Ryzen) vs 96 KB per core (EPYC)
• L3 Cache: 4 MB shared (Ryzen) vs 192 MB shared (EPYC)
• Memory Support: LPDDR5 (Ryzen) vs DDR4 (EPYC)
• Memory Bus: Dual-channel (Ryzen) vs Eight-channel (EPYC)
• Memory Bandwidth: 88.0 GB/s (Ryzen) vs 204.8 GB/s (EPYC)
• ECC Memory: No (Ryzen) vs Yes (EPYC)
• PCIe: Gen 3, 4 Lanes (Ryzen) vs Gen 4, 128 Lanes (EPYC)
• Integrated Graphics: Radeon 610M (Ryzen) vs None (EPYC)
• Market Segment: Mobile (Ryzen) vs Server/Workstation (EPYC)
• Release Date: 2023-05-22 (Ryzen) vs 2019-08-06 (EPYC)
• Transistors: Not listed (Ryzen) vs 3,800 million (EPYC)

The Verdict

The data is clear: the AMD EPYC 7552 is the superior processor for any multi-threaded, compute-intensive workload. It wins all six head-to-head Cinebench tests with a consistent -85.6% delta against the Ryzen 3 7320C. The EPYC’s 48 cores, 96 threads, 192 MB of L3 cache, and 204.8 GB/s of memory bandwidth make it a server-class part. Its nearest rivals include the Intel Xeon 6756E and Intel Core i5-10400F, with average scores within 0.8% of the EPYC’s own 14,115 average.

The Ryzen 3 7320C is not a failure; it is a different tool. Its 15-watt TDP and integrated Radeon 610M graphics make it suitable for thin-and-light mobile devices. Its average benchmark score of 14,277 is actually slightly higher than the EPYC’s, and its nearest rivals include the Intel Core 7 160UL and AMD Ryzen Embedded V2546. The Ryzen’s 4.10 GHz boost clock is higher than the EPYC’s 3.30 GHz, but this does not translate into single-core Cinebench wins. In the head-to-head data, the EPYC wins single-core tests by the same -85.6% margin, indicating the Ryzen’s clock advantage is irrelevant at this performance tier.

For a builder selecting a CPU, the choice depends entirely on the use case. If the task is rendering, virtualization, or database serving, the EPYC 7552 is the only logical option. If the task is basic productivity on a battery-powered laptop, the Ryzen 3 7320C is the appropriate part, but it cannot be compared on raw performance to the EPYC.

Where Each One Wins

AMD Ryzen 3 7320C Wins:

• Mobile computing: Its 15-watt TDP and integrated Radeon 610M graphics are designed for laptops and compact devices.
• Aggregate benchmark score: Its average benchmark score of 14,277 is 1.1% higher than the EPYC’s 14,115.
• Clock speed: The 4.10 GHz boost clock is 24% higher than the EPYC’s 3.30 GHz.
• Process node: The 6 nm node is more advanced than the EPYC’s 7 nm node.
• Modern release: The 2023 release date is newer than the EPYC’s 2019 launch.

AMD EPYC 7552 Wins:

• Multi-core performance: Wins all Cinebench multi-core tests with scores 6.9x higher.
• Single-core performance: Wins all Cinebench single-core tests, despite a lower boost clock.
• Core and thread count: 48 cores and 96 threads versus 4 cores and 8 threads.
• Cache capacity: 192 MB of L3 versus 4 MB, a 48x advantage.
• Memory bandwidth: 204.8 GB/s versus 88.0 GB/s, with eight-channel support.
• ECC memory: Supports ECC, which is critical for server reliability.
• PCIe expandability: Gen 4 with 128 lanes versus Gen 3 with 4 lanes.
• Market segment: The EPYC is a server/workstation part, while the Ryzen is a mobile part.

The verdict is simple: if you need server-grade throughput, the EPYC 7552 is the decisive winner. If you need a low-power mobile chip, the Ryzen 3 7320C has its place, but it cannot compete with the EPYC on any benchmark metric.