AMD Ryzen 7 6800HS vs AMD Ryzen 9 7940HS Comparison

The Verdict

The benchmark data presents a clear hierarchy between these two mobile processors. The AMD Ryzen 9 7940HS wins every single recorded head-to-head comparison, taking 17 wins out of 17 tests. The AMD Ryzen 7 6800HS records zero wins in the shared benchmark suite. The database shows the Ryzen 9 7940HS leading by margins between 16.9% and 39.1% across all tested workloads.

For a user choosing between these two, the decision depends on whether the consistent performance advantage of the Ryzen 9 7940HS justifies its position as the higher-tier part. The Ryzen 7 6800HS still delivers respectable absolute scores, with a Cinebench R23 multi-core result of 11,992 and a Geekbench single-core score of 1,652. However, the Ryzen 9 7940HS reaches 16,713 in Cinebench R23 multi-core and 2,144 in Geekbench single-core. The data indicates that the Ryzen 9 7940HS is the superior choice for any workload where raw processing throughput matters, while the Ryzen 7 6800HS remains a capable alternative for users who do not require the top tier of performance.

The percentile ranking against all CPUs in the database shows both parts are closely positioned: the Ryzen 7 6800HS sits at the 83rd percentile, while the Ryzen 9 7940HS sits at the 82nd percentile. This near-identical overall standing, despite the Ryzen 9's consistent head-to-head wins, reflects how the average benchmark score aggregates different test types. The Ryzen 7 6800HS has an average benchmark score of 32,354, while the Ryzen 9 7940HS averages 31,593. The Ryzen 7 6800HS actually holds a slightly higher average score, which suggests that its overall profile in the database is competitive even though it loses every direct comparison to the Ryzen 9 7940HS.

Architecture Differences

The two processors come from different generations and architectures. The AMD Ryzen 7 6800HS belongs to the 6000 series and uses the Zen 3+ architecture with the codename Rembrandt. It is built on a 6 nm process node at TSMC. The AMD Ryzen 9 7940HS belongs to the 7000 series, uses Zen 4 architecture with the codename Phoenix, and is built on a 4 nm process node, also at TSMC. The process node difference is significant: the Ryzen 9 7940HS uses a smaller 4 nm process, which typically allows higher clock speeds and improved efficiency.

The Ryzen 9 7940HS is fabricated on a die size of 178 mm² and contains 25,000 million transistors. The Ryzen 7 6800HS has a die size of 208 mm², and the database does not list a transistor count for it. Despite the larger physical die, the Ryzen 7 6800HS uses the older architecture and process node.

Both processors have 8 cores and 16 threads. The Ryzen 7 6800HS has a base clock of 3.20 GHz and a boost clock of 4.70 GHz. The Ryzen 9 7940HS has a base clock of 4.00 GHz and a boost clock of 5.20 GHz. The Ryzen 9 7940HS runs at higher clock speeds across the board, which contributes to its performance advantage.

Cache configurations differ in the L2 cache. The Ryzen 7 6800HS has 512 KB of L2 cache per core, while the Ryzen 9 7940HS has 1 MB of L2 cache per core. Both have 64 KB of L1 cache per core and 16 MB of shared L3 cache. The doubled L2 cache on the Ryzen 9 7940HS likely helps with data-heavy workloads.

The integrated graphics differ as well. The Ryzen 7 6800HS includes a Radeon 680M, while the Ryzen 9 7940HS includes a Radeon 780M. The database does not provide benchmark scores for these integrated GPUs, but the model numbers indicate a generational step.

Memory support is DDR5 for both, with dual-channel memory buses. The Ryzen 7 6800HS has a memory bandwidth of 76.8 GB/s, while the Ryzen 9 7940HS has 89.6 GB/s. The Ryzen 9 7940HS supports ECC memory, while the Ryzen 7 6800HS does not. Both use PCIe Gen 4 with 20 lanes (CPU only).

The sockets differ: the Ryzen 7 6800HS uses AMD Socket FP7, while the Ryzen 9 7940HS uses AMD Socket FP8. Both are locked processors with no unlocked multiplier. Both are classified as mobile market segment parts and are still in active production.

Where Each One Wins

The head-to-head data shows that the AMD Ryzen 9 7940HS wins every single benchmark comparison. There is no test in the shared set where the Ryzen 7 6800HS comes out ahead. The largest margin for the Ryzen 9 7940HS is in PassMark find prime numbers, where it scores 92 against 56 for the Ryzen 7 6800HS, a delta of 39.1%. The smallest margin is in PassMark data encryption, where the Ryzen 9 7940HS scores 21,777 against 18,104, a delta of 16.9%.

The Ryzen 9 7940HS shows particularly strong results in multi-threaded and compute-heavy tasks. In Cinebench R23 multi-core, it leads by 28.2%. In PassMark physics, the lead is 30.4%. In PassMark random string sorting, the lead is 28.6%. These results point to a processor that handles parallel workloads with noticeably more headroom.

The Ryzen 7 6800HS, while losing every direct comparison, still has its own strengths in the broader database context. Its average benchmark score of 32,354 is higher than the Ryzen 9 7940HS's 31,593. Its nearest rivals include the Intel Core i5-14400F with an average score of 32,279 and a delta of 0.2%, the AMD Ryzen 5 PRO 7645 at 32,446 with a delta of -0.3%, the AMD Ryzen 7 PRO 8840U at 32,233 with a delta of 0.4%, and the Intel Core i9-11900 at 32,226 with a delta of 0.4%. The Ryzen 7 6800HS sits in a tight competitive cluster around the 32,000 average score mark.

The Ryzen 9 7940HS's nearest rivals have lower average scores. The Intel Core i5-13500 averages 31,510 with a delta of 0.3%, the Intel Core Ultra 5 225H averages 31,508 with a delta of 0.3%, the AMD Ryzen 9 5980HX averages 31,495 with a delta of 0.3%, and the Intel Core 7 240H averages 31,483 with a delta of 0.3%. This means the Ryzen 9 7940HS leads its immediate competitive set by a small margin.

For specific use cases, the data suggests the Ryzen 9 7940HS is the better pick for rendering, physics simulation, data compression, and any task that scales with multi-core performance. The Ryzen 7 6800HS remains a solid choice for users who want a capable 8-core processor with decent single-thread performance, but the recorded measurements consistently favor the Ryzen 9 7940HS.

FAQ

Q: Which processor has a higher boost clock?

A: The AMD Ryzen 9 7940HS has a boost clock of 5.20 GHz, while the AMD Ryzen 7 6800HS has a boost clock of 4.70 GHz.

Q: Do both processors have the same number of cores and threads?

A: Yes, both the AMD Ryzen 7 6800HS and the AMD Ryzen 9 7940HS have 8 cores and 16 threads.

Q: How much larger is the L2 cache on the Ryzen 9 7940HS?

A: The Ryzen 9 7940HS has 1 MB of L2 cache per core, while the Ryzen 7 6800HS has 512 KB per core, so the Ryzen 9 7940HS has double the L2 cache per core.

Q: What is the largest performance gap between the two processors?

A: The largest gap is in PassMark find prime numbers, where the Ryzen 9 7940HS leads by 39.1% with a score of 92 against 56.

Q: Which processor supports ECC memory?

A: The AMD Ryzen 9 7940HS supports ECC memory, while the AMD Ryzen 7 6800HS does not.

Q: What is the difference in memory bandwidth?

A: The Ryzen 9 7940HS has a memory bandwidth of 89.6 GB/s, while the Ryzen 7 6800HS has 76.8 GB/s.

Head-to-Head Benchmarks

The head-to-head benchmark suite contains 17 comparisons, and the AMD Ryzen 9 7940HS wins all of them. The single-thread tests show a consistent gap. In Cinebench R15 single-core, the Ryzen 9 7940HS scores 283 against 234 for the Ryzen 7 6800HS, a delta of 17.3%. In Cinebench R23 single-core, the Ryzen 9 7940HS scores 1,790 against 1,455, a delta of 18.7%. Geekbench single-core shows 2,144 against 1,652, a delta of 22.9%. PassMark single-thread results are 3,878 against 3,184, a delta of 17.9%.

Multi-threaded tests show even larger margins. Cinebench R15 multi-core has the Ryzen 9 7940HS at 2,656 against 1,987, a delta of 25.2%. Cinebench R23 multi-core has 16,713 against 11,992, a delta of 28.2%. Geekbench multi-core has 12,724 against 9,515, a delta of 25.2%. PassMark multithread has 30,098 against 22,801, a delta of 24.2%.

The PassMark suite reveals where the Ryzen 9 7940HS pulls furthest ahead. PassMark find prime numbers shows the largest relative gap at 39.1%. PassMark physics shows a 30.4% lead with 1,450 against 1,009. PassMark random string sorting shows a 28.6% lead with 42,386 against 30,266. PassMark extended instructions shows a 26.8% lead with 27,480 against 20,114. PassMark floating point math shows a 24.4% lead with 62,897 against 47,533. PassMark integer math shows an 18.3% lead with 103,044 against 84,228. PassMark data compression shows a 19.9% lead with 365,352 against 292,698. PassMark data encryption shows the smallest margin at 16.9% with 21,777 against 18,104.

The Ryzen 9 7940HS also has additional benchmark data that the Ryzen 7 6800HS does not have in the database. These include 3DMark tests: single-thread at 1,003, 2-thread at 1,952, 4-thread at 3,725, 8-thread at 6,205, 16-thread at 7,553, and max-thread at 7,558. These results are not part of the head-to-head comparison, but they provide additional context for the Ryzen 9 7940HS's multi-threaded scaling.

The pattern across all tests is consistent. The Ryzen 9 7940HS leads by roughly 17% to 25% in most workloads, with especially large gains in prime number calculation, physics, and string sorting. The Ryzen 7 6800HS does not come closer than 16.9% in any test.

Specification Differences

The two processors differ in several key specification fields. The Ryzen 7 6800HS uses the Zen 3+ architecture with the Rembrandt codename, while the Ryzen 9 7940HS uses Zen 4 with the Phoenix codename. The process node is 6 nm for the Ryzen 7 6800HS and 4 nm for the Ryzen 9 7940HS, both from TSMC.

The Ryzen 7 6800HS has a base clock of 3.20 GHz and a boost clock of 4.70 GHz. The Ryzen 9 7940HS has a base clock of 4.00 GHz and a boost clock of 5.20 GHz. The TDP is 35 watts for both processors.

The sockets differ: the Ryzen 7 6800HS uses AMD Socket FP7, while the Ryzen 9 7940HS uses AMD Socket FP8. The Ryzen 9 7940HS has a smaller die size at 178 mm² compared to 208 mm² for the Ryzen 7 6800HS. The Ryzen 9 7940HS lists 25,000 million transistors, while the Ryzen 7 6800HS has no transistor count listed.

The L2 cache differs: 512 KB per core for the Ryzen 7 6800HS, 1 MB per core for the Ryzen 9 7940HS. Both have 64 KB L1 cache per core and 16 MB shared L3 cache. Memory bandwidth differs: 76.8 GB/s for the Ryzen 7 6800HS, 89.6 GB/s for the Ryzen 9 7940HS. ECC memory support is absent on the Ryzen 7 6800HS and present on the Ryzen 9 7940HS.

The integrated graphics differ: Radeon 680M for the Ryzen 7 6800HS, Radeon 780M for the Ryzen 9 7940HS. Both use DDR5 memory, dual-channel memory buses, and PCIe Gen 4 with 20 lanes (CPU only). Both have locked multipliers and are in active production. The part numbers differ, with the Ryzen 7 6800HS listed as 100-000000545100-000000561 and the Ryzen 9 7940HS as 100-000000954(FP7r2)100-000000963(FP7)100-000001128(FP8).