AMD EPYC 4464P vs AMD EPYC 7343 Comparison

The AMD EPYC 4464P and AMD EPYC 7343 are both 95th-percentile server processors, but they achieve that status through radically different designs. The benchmark data shows a clear split: the newer Zen 4 chip wins 13 of 17 head-to-head tests, while the older Zen 3 part takes 4 wins in specific memory-sensitive or physics workloads. The 4464P’s average benchmark score of 64,756 is 0.9% higher than the 7343’s 64,202, placing it 1% ahead of the Intel Core Ultra 7 265 and 1.2% ahead of the Intel Core i9-13900KS. This is not a generational blowout, but a consistent, architecture-driven pattern of wins.

Head-to-Head Benchmarks

The 4464P dominates every Cinebench test with a uniform 8.4% margin. In Cinebench R23 multi-core, the 4464P scores 40,215 versus 37,097 for the 7343; single-core shows 5,677 versus 5,237. The same 8.4% delta appears in R20 (16,890 vs 15,580 multi-core; 2,384 vs 2,199 single-core) and R15 (4,053 vs 3,739 multi-core; 572 vs 527 single-core). This consistency across all Cinebench versions indicates the 4464P’s per-core efficiency advantage translates directly into both threaded and single-threaded rendering workloads.

The single-thread gap is the most dramatic number in the entire comparison. PassMark single-thread shows the 4464P at 4,130 versus 2,740 for the 7343 — a 50.7% advantage. That is the largest deltaPct in any test, and it dwarfs the 8.4% Cinebench single-core margin. The 4464P also wins extended instructions (38,866 vs 35,626, +9.1%), floating-point math (91,668 vs 86,311, +6.2%), and integer math (160,011 vs 156,033, +2.5%). PassMark multithread follows Cinebench’s pattern: 47,312 vs 43,644, an 8.4% win. Random string sorting goes to the 4464P at 70,443 vs 67,576 (+4.2%).

The 7343’s four wins are narrower but meaningful. PassMark physics shows a massive 39.7% advantage: 4,774 versus 2,879. Data compression is a 2.5% win (589,770 vs 575,076), data encryption a 3.3% win (37,454 vs 36,227), and find prime numbers a 14.4% win (382 vs 327). The physics result is particularly striking because it is the only test where the 7343 beats the 4464P by more than 15%. These wins cluster around workloads that historically favor higher core counts and larger caches — the 7343 has 16 cores versus 12, and 128 MB of L3 versus 64 MB.

Architecture Differences

The 4464P is built on Zen 4 using TSMC’s 5 nm process, with 13,140 million transistors spread across a 2x 71 mm² die configuration. The 7343 uses Zen 3 on TSMC’s 7 nm node, with 16,600 million transistors across a 4x 81 mm² die. The process shrink explains the 4464P’s efficiency: it boosts to 5.40 GHz from a 3.70 GHz base, while the 7343 boosts to only 3.90 GHz from a 3.20 GHz base. This clock advantage, combined with the newer architecture, drives the 50.7% single-thread lead.

Cache configurations differ substantially. The 4464P has 64 KB of L1 per core, 1 MB of L2 per core, and 64 MB of shared L3. The 7343 matches the 64 KB L1 per core but cuts L2 to 512 KB per core, while tripling shared L3 to 128 MB. This larger L3 likely contributes to the 7343’s data compression and encryption wins, as those workloads benefit from larger working sets in cache. The 4464P’s larger per-core L2 (1 MB vs 512 KB) helps its per-thread performance in latency-sensitive tasks.

Memory architecture is a fundamental split. The 4464P uses DDR5 on a dual-channel bus with 83.2 GB/s bandwidth; the 7343 uses DDR4 on an eight-channel bus with 204.8 GB/s bandwidth. The 7343’s 2.46x bandwidth advantage explains its physics win — that benchmark is often memory-bandwidth-bound. PCIe generations also differ: the 4464P offers Gen 5 with 28 CPU lanes, while the 7343 sticks with Gen 4 and 128 CPU lanes. The 7343’s massive lane count serves multi-GPU or high-density storage configs, but the 4464P’s newer standard gives higher per-lane throughput.

Other differences: the 4464P has integrated Radeon Graphics, the 7343 has none. The 4464P uses AMD Socket AM5, the 7343 uses AMD Socket SP3. The 4464P’s launch MSRP is $429; the 7343’s launch MSRP is $1,565. Both support ECC memory, both are locked (multiplier not unlocked), and both remain in active production.

The Verdict

The data points to the 4464P as the superior general-purpose processor. It wins 13 of 17 benchmarks, including all Cinebench tests, all PassMark math tests, multithread, single-thread, and random string sorting. Its 50.7% single-thread advantage is decisive for any workload that cannot fully parallelize. The 4464P’s average score of 64,756 is also 0.9% higher than the 7343’s 64,202, so on aggregate it is the faster chip.

Choose the 7343 only if your workload matches its specific strengths. The 39.7% physics win, 14.4% prime-number win, and smaller wins in data compression and encryption all point to memory-bandwidth-sensitive or high-core-count scenarios. The 7343’s 16 cores, 32 threads, 128 MB L3, and 204.8 GB/s bandwidth make it the pick for dense numerical simulations, large dataset compression pipelines, or encryption-heavy tasks where the 4464P’s lower bandwidth becomes a bottleneck.

For everything else — rendering, general multithreaded compute, single-threaded applications, and mixed server workloads — the 4464P is the data-backed choice. The 8.4% Cinebench margin across all versions shows a uniform lead, and the 9.1% extended-instructions win suggests better support for modern instruction sets. The 4464P also achieves this with a 65 W TDP versus the 7343’s 190 W, though that efficiency metric is not the deciding factor in this analysis — the performance wins stand on their own.

Specification Differences

| Specification | AMD EPYC 4464P | AMD EPYC 7343 |

|---|---|---|

| Cores | 12 | 16 |

| Threads | 24 | 32 |

| Base Clock | 3.70 GHz | 3.20 GHz |

| Boost Clock | 5.40 GHz | 3.90 GHz |

| TDP | 65 W | 190 W |

| Socket | AMD Socket AM5 | AMD Socket SP3 |

| Architecture | Zen 4 | Zen 3 |

| Process Node | 5 nm | 7 nm |

| Transistors | 13,140 million | 16,600 million |

| Die Size | 2x 71 mm² | 4x 81 mm² |

| L2 Cache | 1 MB (per core) | 512 KB (per core) |

| L3 Cache | 64 MB (shared) | 128 MB (shared) |

| Memory Support | DDR5 | DDR4 |

| Memory Bus | Dual-channel | Eight-channel |

| Memory Bandwidth | 83.2 GB/s | 204.8 GB/s |

| PCIe | Gen 5, 28 Lanes | Gen 4, 128 Lanes |

| Integrated Graphics | Radeon Graphics | None |

| Release Date | 2024-05-20 | 2021-03-14 |

| Launch MSRP | $429 | $1,565 |

FAQ

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

A: The AMD EPYC 4464P wins PassMark single-thread with a score of 4,130 versus 2,740 for the 7343, a 50.7% advantage. In Cinebench R23 single-core, the 4464P scores 5,677 versus 5,237, an 8.4% lead.

Q: How do the two compare in multi-threaded rendering?

A: The 4464P wins every Cinebench multi-core test by 8.4%. In R23 multi-core it scores 40,215 versus 37,097; in R20, 16,890 versus 15,580; in R15, 4,053 versus 3,739. PassMark multithread also goes to the 4464P at 47,312 versus 43,644.

Q: Does the 7343 win any benchmarks, and why?

A: Yes, the 7343 wins 4 of 17 tests: PassMark physics (4,774 vs 2,879, +39.7%), find prime numbers (382 vs 327, +14.4%), data compression (589,770 vs 575,076, +2.5%), and data encryption (37,454 vs 36,227, +3.3%). These wins align with its 16 cores, 128 MB L3, and 204.8 GB/s eight-channel memory bandwidth.

Q: What is the memory bandwidth difference?

A: The 7343 has 204.8 GB/s bandwidth from its eight-channel DDR4 bus, while the 4464P has 83.2 GB/s from its dual-channel DDR5 bus. The 7343’s bandwidth is 2.46x higher, which explains its physics benchmark dominance.

Q: Which processor has more cache?

A: The 7343 has 128 MB of shared L3 versus 64 MB on the 4464P, but the 4464P has 1 MB L2 per core versus 512 KB on the 7343. Both have 64 KB L1 per core.

Q: What do the aggregate scores say about overall performance?

A: The 4464P’s average benchmark score is 64,756, which is 0.9% higher than the 7343’s 64,202. The 4464P also sits 1% above the Intel Core Ultra 7 265 and 1.2% above the Intel Core i9-13900KS, while the 7343 is 0.1% above the Core Ultra 7 265 and 0.3% above the i9-13900KS.

Where Each One Wins

The 4464P is the clear winner in single-threaded and mixed workloads. Its 50.7% PassMark single-thread lead is the largest margin in the entire comparison, making it the obvious pick for database queries, web serving, or any application with serial bottlenecks. The 8.4% Cinebench wins across all versions cover rendering and video encoding, while the 9.1% extended-instructions win suggests better performance on modern SIMD-heavy code. Floating-point math (+6.2%), integer math (+2.5%), and random string sorting (+4.2%) round out a broadly faster chip.

The 7343 wins a narrower set of specialized tasks. Its 39.7% physics advantage makes it the choice for physics simulations or collision detection in server-side compute. The 14.4% prime-number win indicates faster integer-heavy algorithmic workloads. Data compression and encryption wins, while modest at 2.5% and 3.3%, point to the 7343’s 128 MB L3 and 204.8 GB/s bandwidth being useful for large in-memory datasets or cryptographic processing.

For a general-purpose server CPU, the 4464P’s 13-4 win record and higher aggregate score make it the recommended purchase. For a specialized compute node where physics, compression, or encryption dominate, the 7343’s specific wins justify its selection despite losing the overall benchmark war. The 4464P achieves its wins with 12 cores versus 16, proving that Zen 4’s per-core efficiency more than compensates for the 7343’s raw core count in most scenarios. The 7343’s 128 PCIe Gen 4 lanes versus the 4464P’s 28 Gen 5 lanes also matter for I/O-heavy deployments, but those are not benchmark-verified advantages in this data.