AMD Ryzen 7 6800HS vs Intel Core Ultra 7 155H Comparison

The Intel Core Ultra 7 155H and AMD Ryzen 7 6800HS are both high-end mobile processors, but benchmark data reveals two distinctly different performance profiles. The Intel part secures a dominant 12 out of 15 head-to-head benchmark victories, while the AMD chip takes the remaining three. Overall average scores are close—32697 for the Intel versus 32354 for the AMD—but the distribution of wins shows a clear split in workload strengths. Both CPUs sit at the 83rd percentile among all CPUs, indicating similar general standing, yet the specific tests where each excels point to divergent architectural priorities.

Head-to-Head Benchmarks

The most lopsided result in the entire comparison comes from the PassMark find prime numbers test, where the Intel Core Ultra 7 155H scores 113 against the AMD Ryzen 7 6800HS’s 56. That is a 101.8% advantage, more than doubling the AMD output. This test is heavily integer-dependent and latency-sensitive, suggesting that the Intel architecture handles this particular workload with exceptional efficiency. Similarly, in PassMark physics, Intel posts 1727 versus AMD’s 1009, a 71.2% lead. Both results indicate that for certain single-threaded or low-thread-count tasks, the Intel processor has a commanding edge.

In Cinebench multi-core workloads, the Intel chip’s advantage is consistent but less extreme. In Cinebench R23 multi-core, Intel scores 15028 against AMD’s 11992, a 25.3% delta. Cinebench R15 multi-core shows a 23.3% gap (2450 versus 1987). Floating-point math also favors Intel heavily: 63703 versus 47533, a 34% lead. The Intel part further wins PassMark multi-thread (24873 versus 22801, a 9.1% delta) and integer math (86870 versus 84228, a 3.1% delta). These results paint a picture of broad multi-core superiority, with the largest margins appearing in compute-heavy synthetic tests.

Single-core performance also leans Intel. Cinebench R23 single-core shows Intel at 1743 versus AMD’s 1455, a 19.8% delta. Cinebench R15 single-core (255 versus 234) and PassMark single-thread (3468 versus 3184) yield 9% and 8.9% deltas, respectively. The Intel part wins random string sorting by 5.7% (31990 versus 30266). While not as dramatic as the prime number or physics results, these single-thread wins reinforce the Intel advantage in latency-bound tasks.

The AMD Ryzen 7 6800HS claims its three wins in data-centric workloads. PassMark data compression goes to AMD at 292698 versus Intel’s 277353, a 5.2% delta. Data encryption is closer in percentage but still a win: 18104 versus 16358, a 9.6% delta. The largest AMD victory comes in extended instructions, where it scores 20114 against Intel’s 16456, an 18.2% delta. These three wins all involve heavy data movement or instruction-level parallelism, areas where the AMD design appears more efficient.

Architecture Differences

The two processors are built on fundamentally different foundations. Intel uses the Meteor Lake architecture with a 7 nm process at Intel’s own foundry, while AMD employs Zen 3+ with a 6 nm process at TSMC. The Intel die size is not listed, but AMD’s is 208 mm². Core counts diverge sharply: Intel has 16 cores and 22 threads, whereas AMD has 8 cores and 16 threads. That difference alone explains much of the multi-core performance gap, but cache layouts also differ. Intel provides 112 KB of L1 per core, 2 MB of L2 per core, and 24 MB of shared L3. AMD counters with 64 KB L1 per core, 512 KB L2 per core, and 16 MB shared L3. Intel’s larger per-core caches and bigger shared pool contribute to its single-thread and latency-sensitive wins.

Clock speeds favor Intel as well. The Intel base clock is 3.80 GHz with a boost of 4.80 GHz, while AMD starts at 3.20 GHz and boosts to 4.70 GHz. Despite the higher clock, Intel’s TDP is lower at 28 W versus AMD’s 35 W. That is notable: Intel achieves higher benchmark scores across most tests while drawing less nominal power. Memory bandwidth also favors Intel at 89.6 GB/s versus AMD’s 76.8 GB/s, both over dual-channel DDR5. PCIe support differs, with Intel offering Gen 5 with 8 lanes (CPU only) and AMD providing Gen 4 with 20 lanes. That gives AMD more total lanes but older generation support.

Integrated graphics are another differentiator. Intel pairs its CPU with Arc Xe-LPG 128EU, while AMD uses Radeon 680M. Neither is benchmarked in the head-to-head data, so any comparison must remain qualitative. Socket types are incompatible: Intel BGA 2049 versus AMD Socket FP7. The Intel part carries a launch MSRP of $503; AMD’s launch MSRP is not listed. Both processors are active in production, and neither has an unlocked multiplier.

Where Each One Wins

The Intel Core Ultra 7 155H is the clear choice for compute-heavy, multi-threaded rendering and simulation tasks. Its Cinebench R23 multi-core score of 15028 versus 11992 gives it a 25.3% edge, which translates directly to faster video rendering, 3D modeling, and scientific computation. The 34% lead in floating-point math (63703 versus 47533) reinforces this, as does the 71.2% win in physics. For users running CPU-bound workloads like ray tracing, finite element analysis, or heavy spreadsheet calculations, Intel’s larger core count and cache are decisive.

Single-threaded responsiveness also favors Intel. The 19.8% lead in Cinebench R23 single-core and 8.9% in PassMark single-thread indicate snappier application launch and better performance in lightly threaded software. The massive 101.8% advantage in prime number finding suggests that cryptographic or integer-heavy single-thread workloads run far better on Intel. This makes the Intel chip attractive for developers, financial analysts, or anyone running legacy single-threaded applications.

The AMD Ryzen 7 6800HS wins in three specific areas that share a common theme: data throughput and instruction-level parallelism. Its 18.2% lead in extended instructions (20114 versus 16456) is the largest AMD victory, suggesting better handling of SIMD or vectorized code. Data compression (5.2% lead) and encryption (9.6% lead) both involve moving large blocks of data, where AMD’s architecture shows efficiency despite lower core count. For workloads like file archiving, database compression, or VPN encryption, the AMD chip holds an edge. However, these wins are narrower than Intel’s largest advantages, and they apply to a more limited set of use cases.

FAQ

Q: Which processor is faster in multi-core rendering?

A: The Intel Core Ultra 7 155H is significantly faster. It scores 15028 in Cinebench R23 multi-core versus 11992 for the AMD Ryzen 7 6800HS, a 25.3% advantage. Cinebench R15 multi-core shows a similar 23.3% delta (2450 versus 1987).

Q: Does the AMD Ryzen 7 6800HS win any benchmarks?

A: Yes, it wins three head-to-head tests: data compression (292698 versus 277353), data encryption (18104 versus 16358), and extended instructions (20114 versus 16456). The extended instructions win is its largest at 18.2%.

Q: How do the core counts compare?

A: Intel provides 16 cores and 22 threads, while AMD provides 8 cores and 16 threads. This core difference largely explains Intel’s multi-core benchmark dominance.

Q: What is the single-core performance gap?

A: Intel leads in all single-core tests. Cinebench R23 single-core shows a 19.8% delta (1743 versus 1455), while PassMark single-thread shows an 8.9% delta (3468 versus 3184).

Q: Which chip has higher memory bandwidth?

A: Intel lists 89.6 GB/s, while AMD lists 76.8 GB/s. Both use dual-channel DDR5, but Intel’s higher bandwidth may contribute to its wins in memory-sensitive tests.

Q: What are the TDP ratings?

A: Intel is rated at 28 W, while AMD is rated at 35 W. Intel achieves higher benchmark scores across most tests despite the lower nominal power draw.

Specification Differences

The two processors differ in nearly every fundamental specification. Intel uses the Meteor Lake architecture on a 7 nm process at Intel’s own foundry, while AMD uses Zen 3+ on a 6 nm process at TSMC. Intel’s die size is not listed; AMD’s is 208 mm². Core and thread counts differ: Intel has 16 cores and 22 threads, AMD has 8 cores and 16 threads. Base clocks are 3.80 GHz for Intel and 3.20 GHz for AMD, with boost clocks of 4.80 GHz and 4.70 GHz, respectively. TDP differs at 28 W versus 35 W.

Cache hierarchies are distinct. Intel provides 112 KB L1 per core, 2 MB L2 per core, and 24 MB shared L3. AMD provides 64 KB L1 per core, 512 KB L2 per core, and 16 MB shared L3. Memory bandwidth is higher for Intel at 89.6 GB/s versus 76.8 GB/s. PCIe generations and lanes differ: Intel has Gen 5 with 8 lanes, AMD has Gen 4 with 20 lanes. The integrated graphics units are Arc Xe-LPG 128EU for Intel and Radeon 680M for AMD. Sockets are incompatible: Intel BGA 2049 versus AMD Socket FP7. Intel’s launch MSRP is $503; AMD’s is not listed. Both are mobile processors with active production status and locked multipliers.