AMD Ryzen 7 PRO 6850H vs AMD Ryzen 7 PRO 8840U Comparison

Head-to-Head Benchmarks

The benchmark data presents a clear split between the two processors. The AMD Ryzen 7 PRO 8840U dominates in 11 of the 15 head-to-head comparisons, while the AMD Ryzen 7 PRO 6850H secures 4 wins. However, the magnitude of the victories tells the more interesting story.

The most decisive result comes from Cinebench R23 multi-core, where the 8840U scores 20,254 against the 6850H's 12,393. That is a 38.8% advantage, a massive gap that underscores the architectural leap between the two generations. The single-core picture is even more lopsided in relative terms. In Cinebench R15 single-core, the 8840U scores 288 versus 205.1, a 28.8% difference. In Cinebench R23 single-core, the 8840U's 2,859 score is 48.2% higher than the 6850H's 1,480. These are not marginal improvements; they represent a fundamental shift in per-thread performance.

The 8840U also wins in several PassMark sub-tests. It leads in find prime numbers with 76 versus 59, a 22.4% edge. Floating point math goes to the 8840U at 50,746 versus 48,276, a 4.9% win. Integer math shows a 2.6% advantage with 88,339 versus 86,068. The multithread score favors the 8840U at 23,850 versus 23,417, a 1.8% margin. Physics scores 1,174 against 1,093, a 6.9% lead. Random string sorting shows 33,109 versus 31,170, a 5.9% advantage. Single-thread performance in PassMark is 3,641 versus 3,305, a 9.2% edge.

The 6850H, despite its losses, claims meaningful victories in specific workloads. The largest win is in data encryption, where it scores 18,681 versus 16,441, a 13.6% advantage. Data compression also goes to the older chip, with 295,214 versus 272,664, an 8.3% lead. Extended instructions show a smaller 2.7% win at 19,654 versus 19,132. In Cinebench R15 multi-core, the 6850H edges out the 8840U with 2,085.5 versus 2,041, a 2.2% margin.

Looking at the average benchmark score, the 6850H sits at 32,812, while the 8840U is at 32,233. Both processors land in the 83rd percentile among all CPUs in the database. The nearest rivals for the 6850H include the Intel Core Ultra 7 155H at 0.4% higher average score, and the Intel Core i5-14600T at 0.3% higher. The 8840U's nearest rivals include the Intel Core i5-14400 at 0.4% higher and the Intel Core i7-12800H at 0.3% higher. These rival deltas are small, indicating both chips sit in a dense performance band.

FAQ

Q: Which processor has the higher boost clock?

A: The AMD Ryzen 7 PRO 8840U has a boost clock of 5.10 GHz, while the AMD Ryzen 7 PRO 6850H has a boost clock of 4.70 GHz.

Q: Does the AMD Ryzen 7 PRO 8840U support ECC memory?

A: Yes, the 8840U lists ECC memory support as true, while the 6850H does not support ECC memory.

Q: What is the difference in the integrated graphics?

A: The 6850H features the Radeon 680M, while the 8840U features the Radeon 780M. The database does not include benchmark scores for these iGPUs, so a direct performance comparison is not available.

Q: Which processor has more L2 cache per core?

A: The AMD Ryzen 7 PRO 8840U has 1 MB of L2 cache per core, whereas the AMD Ryzen 7 PRO 6850H has 512 KB per core.

Q: How do the two chips compare in memory bandwidth?

A: The 8840U has a memory bandwidth of 89.6 GB/s, while the 6850H has 76.8 GB/s. Both support DDR5 memory in a dual-channel configuration.

Q: Which processor has the better single-threaded performance?

A: The 8840U wins in every single-thread benchmark recorded. In Cinebench R23 single-core, it scores 2,859 versus 1,480, a 48.2% advantage. In PassMark single-thread, it scores 3,641 versus 3,305, a 9.2% lead.

Where Each One Wins

The AMD Ryzen 7 PRO 8840U is the clear choice for general-purpose computing and tasks that rely on new instruction sets and higher clock speeds. Its victories in Cinebench R23 multi-core (38.8% ahead) and single-core (48.2% ahead) make it the better option for content creation, 3D rendering, and any workload that scales with raw CPU throughput. The 8840U also wins in floating point math, integer math, physics, and random string sorting, indicating broad superiority in scientific computing, financial modeling, and general number crunching.

The 8840U's 5.10 GHz boost clock and Zen 4 architecture give it a decisive edge in lightly threaded applications like web browsing, office productivity, and legacy software that cannot utilize many cores. Its higher single-thread scores across both Cinebench and PassMark confirm this strength.

The AMD Ryzen 7 PRO 6850H, while older, retains specific advantages. Its wins in data encryption (13.6% ahead) and data compression (8.3% ahead) suggest it holds an edge in specialized workloads involving cryptography, secure communications, and file archiving. The 6850H also wins in extended instructions by 2.7%, which may interest users running software with heavy SIMD or specialized instruction usage.

For multi-threaded tasks that are not purely compute-bound, such as certain database operations or compression pipelines, the 6850H's performance in these specific PassMark sub-tests indicates it can still hold its own. The Cinebench R15 multi-core win (2.2%) is a minor point, but it shows the older chip is not entirely outclassed in every multi-core scenario.

Specification Differences

The two processors share a core and thread count: both have 8 cores and 16 threads. They also use the same AMD Socket FP7 and support Gen 4 PCIe with 20 lanes (CPU only). Both are mobile market segments and are currently active in production. Neither has an unlocked multiplier.

The base clock differs slightly. The 6850H runs at 3.20 GHz, while the 8840U runs at 3.30 GHz. The boost clock shows a larger gap: 4.70 GHz for the 6850H versus 5.10 GHz for the 8840U. The TDP is a significant difference. The 6850H has a 45 W TDP, while the 8840U has a 28 W TDP. This means the 8840U achieves higher performance while drawing less power, a notable efficiency gain.

Memory bandwidth differs, with the 8840U at 89.6 GB/s and the 6850H at 76.8 GB/s. ECC memory support is present on the 8840U but absent on the 6850H. The integrated graphics differ, with the 6850H using the Radeon 680M and the 8840U using the Radeon 780M.

The release dates are distinct. The 6850H launched on April 18, 2022, while the 8840U launched on April 15, 2024. The part numbers also differ, with the 8840U listing two variants for different FP7 revisions.

Architecture Differences

The architectural gap is the core reason for the performance divergence. The 6850H is built on Zen 3+ architecture, codenamed Rembrandt, while the 8840U uses Zen 4, codenamed Hawk Point. This is a generational leap that explains the 8840U's superior single-thread and multi-thread results.

The manufacturing process also differs. The 6850H uses a 6 nm process node from TSMC, while the 8840U uses a 4 nm process node, also from TSMC. The smaller node contributes to the 8840U's higher clock speeds and lower power consumption. The die size reflects this: the 6850H has a 208 mm² die, while the 8840U comes in at 178 mm². The 8840U also lists a transistor count of 25,000 million, while the 6850H does not have a recorded transistor count in the database.

Cache configuration shows a key difference in L2 cache. Both chips have 64 KB of L1 cache per core and 16 MB of shared L3 cache. However, the 6850H has 512 KB of L2 per core, while the 8840U doubles that to 1 MB per core. This increased L2 cache likely contributes to the 8840U's better performance in memory-intensive workloads.

The memory support is DDR5 for both, with dual-channel buses. The higher memory bandwidth on the 8840U (89.6 GB/s versus 76.8 GB/s) pairs with the faster clocks and newer architecture to produce the observed benchmark deltas.

The 8840U's ECC memory support is a feature absent on the 6850H. This may appeal to users in professional or server-adjacent roles where data integrity is critical.

In summary, the 8840U represents a full architectural refresh with a smaller process node, higher clocks, more L2 cache, and better memory bandwidth, all within a lower TDP envelope. The 6850H retains strengths in specific compression and encryption tasks, but the overall data shows the 8840U as the more capable processor for the majority of workloads.