AMD Ryzen AI 7 345 vs AMD Ryzen Threadripper 9980X Comparison

The Verdict

The data presents an absolute dominance by the AMD Ryzen Threadripper 9980X over the AMD Ryzen AI 7 345. Across all 15 recorded head-to-head benchmarks, the Threadripper 9980X wins every single test, with no wins recorded for the mobile chip. The average benchmark score tells the same story: the Threadripper 9980X sits at 321,753, while the Ryzen AI 7 345 manages 29,461. The Threadripper 9980X holds a 99th percentile ranking versus all CPUs, whereas the Ryzen AI 7 345 sits at the 81st percentile.

The Ryzen AI 7 345 is a 28-watt mobile processor designed for thin, power-sensitive systems. Its closest rivals in the database include the AMD Ryzen 7 3800X (average score 29,447), the AMD EPYC 9654 (29,409), and the Intel Core i5-13500HX (29,270), showing it competes with older desktop parts and modern mobile HX chips. The Threadripper 9980X, in contrast, ranks alongside the AMD Ryzen Threadripper PRO 9985WX (average score 320,749), Intel Xeon 6781P (315,524), and AMD EPYC 9575F (311,774), placing it firmly in workstation and server territory. The choice is clear: the data indicates the Threadripper 9980X is for extreme multi-threaded workloads, while the Ryzen AI 7 345 fits portable systems where power draw matters more than raw throughput.

Architecture Differences

The two processors diverge fundamentally in their design goals. The Ryzen AI 7 345 uses the Krackan Point codename and belongs to the Ryzen AI 300 generation, built on a hybrid architecture of Zen 5 and Zen 5c cores. It has 6 cores and 12 threads, fabricated on TSMC's 4 nm process. The Threadripper 9980X, codenamed Shimada Peak, uses pure Zen 5 architecture across 64 cores and 128 threads, also on TSMC's 4 nm node. The core count difference is the most dramatic architectural split: 6 cores versus 64 cores, a 10.7x increase in core count.

Cache hierarchies reflect the scale. The Ryzen AI 7 345 provides 80 KB of L1 per core, 1 MB of L2 per core, and a 4 MB L3 cache. The Threadripper 9980X uses 64 KB of L1 per core, 1 MB of L2 per core, and a massive 256 MB L3 cache. That L3 difference, 256 MB versus 4 MB, is a 64x gap. The Threadripper also lists 66,520 million transistors across 8 dies, each 70.6 mm², while the Ryzen AI 7 345 has no transistor or die size data recorded. The Threadripper's multi-die design supports the enormous cache and core count.

Memory support also separates them. The Ryzen AI 7 345 supports DDR5 and LPDDR5X over a dual-channel bus, delivering 89.6 GB/s of bandwidth. The Threadripper 9980X supports DDR5 exclusively over a quad-channel bus, delivering 204.8 GB/s, more than double the bandwidth. The Threadripper also supports ECC memory, while the Ryzen AI 7 345 does not. PCIe connectivity differs sharply: the mobile chip uses Gen 4 with 14 CPU lanes, while the Threadripper uses Gen 5 with 80 CPU lanes. The Threadripper has an unlocked multiplier; the Ryzen AI 7 345 does not.

Head-to-Head Benchmarks

The largest deltas appear in multi-threaded and math-heavy workloads. In Cinebench R23 multi-core, the Threadripper 9980X scores 130,529 against 11,461 for the Ryzen AI 7 345, a delta of -91.2%. That means the Threadripper delivers roughly 11.4 times the multi-core performance. Cinebench R15 multi-core shows a -87% delta, with scores of 13,157 versus 1,712, a 7.7x advantage. PassMark integer math records 872,071 versus 63,475, a -92.7% delta, while floating-point math hits 559,003 versus 42,621, a -92.4% delta. Data compression shows 2,974,534 against 237,484, a -92% delta. Random string sorting, a memory-latency sensitive test, gives 292,083 versus 25,435, a -91.3% delta.

Single-core results narrow the gap but still favor the Threadripper. Cinebench R23 single-core shows 18,427 versus 1,818, a -90.1% delta. Cinebench R15 single-core gives 1,857 versus 271, a -85.4% delta. PassMark single-thread scores 4,537 versus 3,875, a -14.6% delta, the smallest margin in the entire dataset. That 14.6% single-thread deficit for the Ryzen AI 7 345 is notable: the mobile chip's Zen 5c cores and lower power envelope cannot match the Threadripper's higher boost clock of 5.40 GHz versus 4.60 GHz. Even so, a 14.6% single-thread gap is far smaller than the 85% to 92% multi-thread gaps.

Other tests reinforce the pattern. PassMark data encryption shows 157,137 versus 11,814, a -92.5% delta. Extended instructions give 228,959 versus 17,003, a -92.6% delta. Find prime numbers scores 769 versus 62, a -91.9% delta. PassMark physics shows 8,001 versus 1,089, a -86.4% delta. Cinebench R20, recorded only for the Threadripper, shows 54,822 multi-core and 7,739 single-core, but no comparable Ryzen AI 7 345 data exists.

Specification Differences

| Specification | AMD Ryzen AI 7 345 | AMD Ryzen Threadripper 9980X |

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

| Cores | 6 | 64 |

| Threads | 12 | 128 |

| Base clock | 2.00 GHz | 3.20 GHz |

| Boost clock | 4.60 GHz | 5.40 GHz |

| TDP | 28 W | 350 W |

| Socket | AMD Socket FP8 | AMD Socket sTR5 |

| Codename | Krackan Point | Shimada Peak |

| Generation | Ryzen AI 300 (Zen 5 / Zen 5c) | Ryzen Threadripper (Zen 5) |

| L1 cache | 80 KB per core | 64 KB per core |

| L2 cache | 1 MB per core | 1 MB per core |

| L3 cache | 4 MB | 256 MB |

| Memory support | DDR5, LPDDR5X | DDR5 |

| Memory bus | Dual-channel | Quad-channel |

| Memory bandwidth | 89.6 GB/s | 204.8 GB/s |

| ECC memory | No | Yes |

| PCIe | Gen 4, 14 lanes | Gen 5, 80 lanes |

| Integrated graphics | Radeon 840M | N/A |

| Market segment | Mobile | Desktop |

| Multiplier unlocked | No | Yes |

| Transistors | Not recorded | 66,520 million |

| Die size | Not recorded | 8x 70.6 mm² |

| Launch MSRP | None recorded | $4999 |

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen Threadripper 9980X has 64 cores and 128 threads, while the AMD Ryzen AI 7 345 has 6 cores and 12 threads.

Q: What is the single-thread performance gap?

A: In PassMark single-thread tests, the Threadripper 9980X scores 4,537 versus 3,875 for the Ryzen AI 7 345, a -14.6% delta. This is the smallest performance gap in the recorded data.

Q: Does the Threadripper 9980X support ECC memory?

A: Yes, the Threadripper 9980X supports ECC memory. The Ryzen AI 7 345 does not support ECC memory.

Q: What is the memory bandwidth difference?

A: The Threadripper 9980X provides 204.8 GB/s over a quad-channel DDR5 bus, while the Ryzen AI 7 345 provides 89.6 GB/s over a dual-channel bus supporting DDR5 and LPDDR5X.

Q: Which processor has integrated graphics?

A: The Ryzen AI 7 345 includes Radeon 840M integrated graphics. The Threadripper 9980X has no integrated graphics recorded.

Q: How does the L3 cache compare?

A: The Threadripper 9980X has 256 MB of L3 cache, while the Ryzen AI 7 345 has 4 MB, a 64x difference.

Where Each One Wins

The Threadripper 9980X wins every recorded benchmark, so its strengths are absolute across the dataset. The largest advantages appear in multi-threaded and parallel workloads: Cinebench R23 multi-core (130,529 versus 11,461), PassMark integer math (872,071 versus 63,475), floating-point math (559,003 versus 42,621), and data compression (2,974,534 versus 237,484). These tests show deltas between -91.2% and -92.7%, indicating the Threadripper delivers roughly 11 to 13 times the throughput. The 128 threads, 256 MB L3 cache, and 204.8 GB/s memory bandwidth drive these results. Workloads such as video rendering, code compilation, scientific simulation, and large-scale data processing would benefit from this extreme parallel capacity.

The Ryzen AI 7 345, despite losing all head-to-head tests, shows its competitive position in the 81st percentile versus all CPUs, and its nearest rivals include the AMD Ryzen 7 3800X and Intel Core i5-13500HX. The smallest delta, -14.6% in PassMark single-thread, indicates the mobile chip remains competitive in lightly threaded tasks. Its 28 W TDP and integrated Radeon 840M graphics make it suitable for portable systems where the Threadripper's 350 W TDP, sTR5 socket, and desktop-only segment are impractical. The Ryzen AI 7 345 also supports LPDDR5X memory, which the Threadripper does not, a feature relevant for compact, power-efficient designs.

The data does not support any scenario where the Ryzen AI 7 345 outperforms the Threadripper 9980X. The Threadripper wins all 15 benchmarks, holds a 99th percentile ranking, and its nearest rivals are other high-end workstation parts like the Threadripper PRO 9985WX and Intel Xeon 6781P. The Ryzen AI 7 345's nearest rivals are older desktop chips and mobile HX parts, a far lower performance tier. For users needing maximum multi-threaded compute, the Threadripper 9980X is the clear choice. For mobile, low-power systems with modest performance needs, the Ryzen AI 7 345 fits, but it cannot match the Threadripper in any recorded metric. The database shows a one-sided relationship, with the Threadripper 9980X dominating across the entire benchmark suite.