AMD Ryzen 7 6800U vs AMD Ryzen AI 5 PRO 340 Comparison

The AMD Ryzen AI 5 PRO 340 and AMD Ryzen 7 6800U are closely matched mobile processors, with the newer Zen 5 chip winning 7 of 15 head-to-head tests while the older Zen 3+ part takes 8. The Ryzen AI 5 PRO 340 leads decisively in single-threaded workloads, posting a 19.7% advantage in Cinebench R23 single-core, while the Ryzen 7 6800U counters with an 18.7% win in PassMark integer math. Their average benchmark scores are nearly identical — 27932 for the AI 5 PRO 340 versus 27887 for the 6800U — placing both in the 79th-80th percentile of all CPUs, with the AI 5 PRO 340 edging ahead by just 0.2%.

FAQ

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

A: The AMD Ryzen AI 5 PRO 340 wins every single-thread benchmark in the comparison. It scores 276 versus 242 in Cinebench R15 single-core (14% ahead), 1802 versus 1506 in Cinebench R23 single-core (19.7% ahead), and 3758 versus 3166 in PassMark single-thread (18.7% ahead).

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

A: The results are split. The Ryzen 7 6800U wins Cinebench R15 multi-core by 1.9% (1776 vs 1743) and PassMark multi-thread by 5.6% (20350 vs 19215), but the Ryzen AI 5 PRO 340 wins Cinebench R23 multi-core by 9.4% (11534 vs 10546). The 6800U has 8 cores and 16 threads versus 6 cores and 12 threads on the AI 5 PRO 340.

Q: What is the performance difference in the average benchmark score?

A: The Ryzen AI 5 PRO 340 has an average benchmark score of 27932, while the Ryzen 7 6800U scores 27887. This puts the AI 5 PRO 340 just 0.2% ahead, and both chips sit within 0.2% of the AMD Ryzen 7 5800X3D's average score of 27896.

Q: Which processor is more efficient in terms of power draw?

A: The Ryzen 7 6800U has a TDP of 15 watts, while the Ryzen AI 5 PRO 340 has a TDP of 28 watts. The 6800U is rated for significantly lower power consumption, despite being built on the older 6 nm process node.

Q: What are the integrated graphics differences?

A: The Ryzen AI 5 PRO 340 features the Radeon 840M, while the Ryzen 7 6800U uses the Radeon 680M. Both are integrated graphics solutions for mobile platforms, but the benchmark data does not include any graphics-specific tests.

Q: How do the cache configurations differ?

A: The Ryzen AI 5 PRO 340 has 80 KB of L1 cache per core and 1 MB of L2 per core, with 8 MB of shared L3. The Ryzen 7 6800U has 64 KB of L1 per core and 512 KB of L2 per core, but doubles the L3 to 16 MB shared.

Where Each One Wins

The Ryzen AI 5 PRO 340 is the clear choice for single-thread-bound tasks. Its 19.7% lead in Cinebench R23 single-core and 18.7% lead in PassMark single-thread indicate a substantial architectural advantage in lightly-threaded applications. It also wins PassMark physics by 10.2% (1084 vs 984) and PassMark prime numbers by a massive 29.8% (74 vs 57), suggesting strong per-core arithmetic efficiency.

The Ryzen 7 6800U dominates in memory-heavy and encryption workloads. It wins PassMark data compression by 9.2% (244082 vs 221581), data encryption by 28.1% (15601 vs 11212), and integer math by 18.7% (77731 vs 63233). Its 16 MB of L3 cache and 8 physical cores likely drive these wins. The 6800U also takes floating-point math (42246 vs 39662, a 6.1% win) and random string sorting (25954 vs 24334, a 6.2% win).

For general multi-threaded productivity, the picture is mixed. The 6800U wins PassMark multi-thread by 5.6% and Cinebench R15 multi-core by 1.9%, but the AI 5 PRO 340 wins Cinebench R23 multi-core by 9.4%. The newer chip's single-thread strength gives it the edge in Cinebench's newer rendering benchmark, while the 6800U's extra cores prevail in PassMark's suite.

Architecture Differences

The two processors come from different architectural generations. The Ryzen AI 5 PRO 340 uses Zen 5 architecture on TSMC's 4 nm process node, with a die size of 195 mm². It belongs to the Krackan Point codename and the Ryzen AI PRO 300 generation, which combines Zen 5 and Zen 5c cores. The Ryzen 7 6800U uses Zen 3+ architecture on TSMC's 6 nm process, with a larger die of 208 mm², under the Rembrandt codename.

Core counts differ significantly. The AI 5 PRO 340 has 6 cores and 12 threads, while the 6800U has 8 cores and 16 threads. The cache hierarchy also diverges: the AI 5 PRO 340 provides more L1 (80 KB vs 64 KB per core) and L2 (1 MB vs 512 KB per core), but the 6800U has twice the L3 cache (16 MB vs 8 MB).

Memory support shows a generational split. The AI 5 PRO 340 supports both DDR5 and LPDDR5X with 89.6 GB/s bandwidth and ECC memory. The 6800U supports only DDR5 with 76.8 GB/s bandwidth and no ECC. Both use dual-channel memory buses. PCIe connectivity favors the 6800U with 20 Gen 4 lanes (CPU-only) versus 16 Gen 4 lanes on the AI 5 PRO 340.

The AI 5 PRO 340 was released on January 5, 2025, while the 6800U has no release date listed. The 6800U belongs to AMD's 6000 series, while the AI 5 PRO 340 has no series designation. Both use different sockets: AMD Socket FP8 for the AI 5 PRO 340 and AMD Socket FP7 for the 6800U.

Specification Differences

| Specification | AMD Ryzen AI 5 PRO 340 | AMD Ryzen 7 6800U |

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

| Cores | 6 | 8 |

| Threads | 12 | 16 |

| Base Clock | 2.00 GHz | 2.70 GHz |

| Boost Clock | 4.80 GHz | 4.70 GHz |

| TDP | 28 W | 15 W |

| Socket | AMD Socket FP8 | AMD Socket FP7 |

| Architecture | Zen 5 | Zen 3+ |

| Codename | Krackan Point | Rembrandt |

| Process Node | 4 nm | 6 nm |

| Die Size | 195 mm² | 208 mm² |

| L1 Cache | 80 KB (per core) | 64 KB (per core) |

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

| L3 Cache | 8 MB | 16 MB (shared) |

| Memory Support | DDR5, LPDDR5X | DDR5 |

| Memory Bandwidth | 89.6 GB/s | 76.8 GB/s |

| ECC Memory | Yes | No |

| PCIe | Gen 4, 16 Lanes (CPU only) | Gen 4, 20 Lanes (CPU only) |

| Integrated Graphics | Radeon 840M | Radeon 680M |

| Release Date | 2025-01-05 | Not listed |

| Part Number | 100-000001600 | 100-000000534100-000000617 |

Head-to-Head Benchmarks

The single-thread results tell the clearest story. In Cinebench R23 single-core, the Ryzen AI 5 PRO 340 scores 1802 against the 6800U's 1506, a 19.7% advantage. The older Cinebench R15 single-core test shows a 14% lead (276 vs 242). PassMark single-thread confirms the trend at 3758 versus 3166, another 18.7% win. The AI 5 PRO 340 also wins PassMark physics by 10.2% (1084 vs 984) and PassMark prime numbers by 29.8% (74 vs 57), the largest single-test margin in the comparison.

The 6800U's wins are concentrated in memory and encryption tasks. Its largest victory is PassMark data encryption, where it scores 15601 versus 11212, a 28.1% margin. PassMark integer math shows an 18.7% win (77731 vs 63233). Data compression goes to the 6800U by 9.2% (244082 vs 221581). Smaller wins come in floating-point math (42246 vs 39662, 6.1%), random string sorting (25954 vs 24334, 6.2%), PassMark multi-thread (20350 vs 19215, 5.6%), and Cinebench R15 multi-core (1776 vs 1743, 1.9%). PassMark extended instructions is nearly tied at 15935 versus 15721, a 1.3% edge for the 6800U.

In multi-core rendering, the AI 5 PRO 340 takes Cinebench R23 multi-core by 9.4% (11534 vs 10546), despite having fewer cores. This suggests the Zen 5 architecture's efficiency and higher boost clock of 4.80 GHz versus 4.70 GHz compensate for the 2-core deficit. The 6800U's higher base clock of 2.70 GHz versus 2.00 GHz may help it in shorter multi-threaded bursts, as seen in Cinebench R15.

The Verdict

The Ryzen AI 5 PRO 340 is the processor for users prioritizing single-thread responsiveness and modern rendering performance. Its 19.7% lead in Cinebench R23 single-core and 18.7% lead in PassMark single-thread make it the better choice for everyday applications that rely on per-core speed. The 9.4% win in Cinebench R23 multi-core, achieved with 2 fewer cores, demonstrates the efficiency of Zen 5 on the 4 nm node. It also offers ECC memory support, higher memory bandwidth at 89.6 GB/s, and a newer release date of January 5, 2025.

The Ryzen 7 6800U is the better pick for multi-threaded productivity and security-related workloads. Its 28.1% win in data encryption and 18.7% win in integer math make it superior for cryptographic tasks and calculation-heavy applications. The 8-core, 16-thread configuration with 16 MB of L3 cache drives wins in PassMark multi-thread (5.6%) and data compression (9.2%). Its 15 W TDP also makes it more suitable for fanless or ultra-portable designs, despite the older 6 nm process.

The average benchmark scores are effectively a tie at 27932 versus 27887, a 0.2% difference. Both chips sit within 0.3% of the Intel Core i9-12900H and within 0.1% of the AMD Ryzen 7 5800X3D. The decision comes down to workload: choose the Ryzen AI 5 PRO 340 for single-thread dominance and modern rendering, or the Ryzen 7 6800U for encryption throughput, integer math, and lower power consumption. The 6800U wins 8 of 15 head-to-head tests, but the AI 5 PRO 340 wins the tests that matter most for general responsiveness.