AMD Ryzen Embedded 8645HS vs Intel Core Ultra 5 336H Comparison

# The Verdict

The AMD Ryzen Embedded 8645HS and Intel Core Ultra 5 336H occupy different positions in the mobile processor landscape. The database records no benchmark scores for the AMD part, while the Intel part has an average benchmark score of 34,485 and sits at the 84th percentile of all CPUs. The AMD part sits at the 50th percentile. This percentile gap is substantial, indicating that the Intel processor outperforms the AMD processor in the recorded measurements.

The Intel Core Ultra 5 336H delivers 16 cores and 16 threads, while the AMD Ryzen Embedded 8645HS offers 6 cores and 12 threads. The Intel part boosts to 4.60 GHz, the AMD part to 5.00 GHz. The Intel part uses a 3 nm process node from Intel, while the AMD part uses a 4 nm node from TSMC. The Intel part has 18 MB of shared L3 cache, while the AMD part has 16 MB. The Intel part supports DDR5 and LPDDR5X memory with 115.2 GB/s bandwidth, while the AMD part supports DDR5 with 89.6 GB/s bandwidth.

The data suggests that the Intel Core Ultra 5 336H is the stronger performer in the database's recorded benchmarks, with an average score of 34,485 versus no recorded score for the AMD part. The AMD part offers ECC memory support, which the Intel part lacks. The AMD part uses PCIe Gen 4 with 20 lanes, while the Intel part uses PCIe Gen 5 with 12 lanes. The AMD part features Radeon 760M integrated graphics, while the Intel part features Intel Xe3 Graphics.

# Architecture Differences

The AMD Ryzen Embedded 8645HS uses the Zen 4 architecture under the codename Hawk Point, part of the 8000 series. The Intel Core Ultra 5 336H uses the Panther Lake architecture, part of the Core Ultra Series 3. The AMD part is manufactured on a 4 nm process at TSMC with 25,000 million transistors on a 178 mm² die. The Intel part is manufactured on a 3 nm process at Intel, with no transistor count or die size recorded in the database.

The AMD part has 6 cores and 12 threads, while the Intel part has 16 cores and 16 threads. The AMD part's base clock is 4.30 GHz with a boost clock of 5.00 GHz. The Intel part's base clock is 1.90 GHz with a boost clock of 4.60 GHz. The AMD part has a TDP of 45 watts, while the Intel part has a TDP of 25 watts. The AMD part uses AMD Socket FP8, while the Intel part uses Intel BGA 2540.

Cache hierarchies differ notably. The AMD part has 64 KB of L1 cache per core, 1 MB of L2 cache per core, and 16 MB of shared L3 cache. The Intel part has 192 KB of L1 cache per core, 2.5 MB of L2 cache per core, and 18 MB of shared L3 cache. The Intel part's larger per-core L1 and L2 caches reflect its different core design approach, while the AMD part's higher base and boost clocks reflect its higher TDP envelope.

Memory support differs as well. The AMD part supports DDR5 with dual-channel memory and 89.6 GB/s bandwidth. The Intel part supports both DDR5 and LPDDR5X with dual-channel memory and 115.2 GB/s bandwidth. The AMD part supports ECC memory, while the Intel part does not. The AMD part uses PCIe Gen 4 with 20 lanes, while the Intel part uses PCIe Gen 5 with 12 lanes. The Intel part's PCIe Gen 5 support provides higher per-lane bandwidth, while the AMD part's additional lanes provide more total connectivity.

The AMD part was released on April 1, 2024, while the Intel part was released on January 4, 2026. Both are listed as Active in production status and target the mobile market segment. Neither part has an unlocked multiplier, and neither has a recorded launch MSRP.

# FAQ

Q: Which processor has more cores?

A: The Intel Core Ultra 5 336H has 16 cores and 16 threads, while the AMD Ryzen Embedded 8645HS has 6 cores and 12 threads.

Q: Does the AMD Ryzen Embedded 8645HS support ECC memory?

A: Yes, the AMD part has ECC memory support. The Intel Core Ultra 5 336H does not support ECC memory.

Q: What is the memory bandwidth difference?

A: The Intel Core Ultra 5 336H has 115.2 GB/s memory bandwidth, while the AMD Ryzen Embedded 8645HS has 89.6 GB/s. The Intel part also supports LPDDR5X in addition to DDR5, while the AMD part supports DDR5 only.

Q: Which processor has the higher boost clock?

A: The AMD Ryzen Embedded 8645HS has a boost clock of 5.00 GHz, while the Intel Core Ultra 5 336H has a boost clock of 4.60 GHz.

Q: What is the average benchmark score for the Intel Core Ultra 5 336H?

A: The Intel part has an average benchmark score of 34,485 and sits at the 84th percentile of all CPUs. The AMD part has no recorded benchmark scores and sits at the 50th percentile.

Q: Which processor uses a more advanced process node?

A: The Intel Core Ultra 5 336H uses a 3 nm process at Intel, while the AMD Ryzen Embedded 8645HS uses a 4 nm process at TSMC.

# Specification Differences

The two processors differ across nearly every major specification category.

Cores and threads: the AMD part has 6 cores and 12 threads, the Intel part has 16 cores and 16 threads. The Intel part has 10 more cores and 4 more threads.

Clock speeds: the AMD part has a base clock of 4.30 GHz and a boost clock of 5.00 GHz. The Intel part has a base clock of 1.90 GHz and a boost clock of 4.60 GHz. The AMD part's base clock is 2.40 GHz higher, and its boost clock is 0.40 GHz higher.

TDP: the AMD part is rated at 45 watts, the Intel part at 25 watts. The AMD part draws more power under load.

Socket: the AMD part uses AMD Socket FP8, the Intel part uses Intel BGA 2540.

Architecture and codename: the AMD part uses Zen 4 with codename Hawk Point, the Intel part uses Panther Lake with codename Panther Lake. The AMD part is from the 8000 series, the Intel part from Core Ultra Series 3.

Process node and foundry: the AMD part uses a 4 nm process at TSMC, the Intel part uses a 3 nm process at Intel. The AMD part has 25,000 million transistors on a 178 mm² die, while no transistor count or die size is recorded for the Intel part.

Cache: the AMD part has 64 KB L1 per core, 1 MB L2 per core, and 16 MB shared L3. The Intel part has 192 KB L1 per core, 2.5 MB L2 per core, and 18 MB shared L3.

Memory: the AMD part supports DDR5 with dual-channel memory and 89.6 GB/s bandwidth. The Intel part supports DDR5 and LPDDR5X with dual-channel memory and 115.2 GB/s bandwidth. The AMD part supports ECC memory, the Intel part does not.

PCIe: the AMD part uses PCIe Gen 4 with 20 lanes, the Intel part uses PCIe Gen 5 with 12 lanes.

Integrated graphics: the AMD part has Radeon 760M, the Intel part has Intel Xe3 Graphics.

Release date: the AMD part was released on April 1, 2024, the Intel part on January 4, 2026.

Production status: both are listed as Active. Multiplier unlock: neither part has an unlocked multiplier. Launch MSRP: neither part has a recorded launch MSRP.

# Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries for these two processors, and the AMD Ryzen Embedded 8645HS has no recorded benchmark scores. The Intel Core Ultra 5 336H, however, has a full set of recorded benchmark results that place it firmly in the upper tier of CPUs.

In Cinebench R23 multi-core, the Intel part scores 23,991. In Cinebench R23 single-core, it scores 3,387. Cinebench R20 results show 10,076 in multi-core and 1,422 in single-core. Cinebench R15 results show 2,418 in multi-core and 341 in single-core.

PassMark results for the Intel part cover a range of workloads. Multi-thread score is 28,545, and single-thread score is 4,013. Integer math scores 62,070, floating point math scores 82,415, and extended instructions score 24,542. Data compression scores 280,340, while data encryption scores 21,291. Physics scores 2,682, and random string sorting scores 34,402. Find prime numbers scores 299.

The Intel part's nearest rivals in the database provide context for its performance. The Intel Core i7-13700HX has an average score of 34,554, which is 0.2 percent higher than the Intel Core Ultra 5 336H's score. The Intel Core i5-13450HX has an average score of 34,333, which is 0.4 percent lower. The AMD Ryzen 7 3700X has an average score of 34,260, which is 0.7 percent lower. The AMD Ryzen AI 7 350 has an average score of 34,222, which is 0.8 percent lower.

This places the Intel Core Ultra 5 336H in close competition with desktop-class processors from the previous generation. The 0.2 percent gap to the Intel Core i7-13700HX is negligible, meaning the two perform at essentially the same level in the database's averaging. The Intel part beats the Intel Core i5-13450HX, the AMD Ryzen 7 3700X, and the AMD Ryzen AI 7 350 by small margins.

The AMD Ryzen Embedded 8645HS has no recorded benchmark scores, so direct numerical comparison is impossible. The percentile data, however, tells a clear story: the Intel part sits at the 84th percentile of all CPUs, while the AMD part sits at the 50th percentile. The 34-point percentile gap strongly suggests that the Intel part outperforms the AMD part in the aggregate.

The Intel part's 16 cores provide a significant multi-threading advantage on paper, though the AMD part's higher clock speeds may offset some of that advantage in single-threaded work. The AMD part's 5.00 GHz boost clock is 0.40 GHz higher than the Intel part's 4.60 GHz boost clock. The AMD part's 45-watt TDP, nearly double the Intel part's 25-watt TDP, allows it to sustain those higher clocks, though at the cost of greater power consumption.

The Intel part's memory bandwidth advantage of 115.2 GB/s versus 89.6 GB/s gives it more headroom for memory-intensive workloads. The Intel part's PCIe Gen 5 support, while offering fewer lanes at 12 versus the AMD part's 20 Gen 4 lanes, provides newer connectivity standards.

The AMD part's ECC memory support makes it suitable for error-sensitive workloads, and its 25,000 million transistors on a 178 mm² die are documented, while the Intel part's transistor count and die size are not recorded. The AMD part's Radeon 760M integrated graphics and the Intel part's Intel Xe3 Graphics both provide integrated display capabilities, but no benchmark data exists to compare their graphical performance.

The Intel part's release date of January 4, 2026 makes it the newer design by roughly two years. The AMD part's release date of April 1, 2024 places it earlier in the 8000 series lifecycle. Both parts remain in Active production status.

The database records show the Intel Core Ultra 5 336H as the higher-performing part by a wide margin in percentile terms. Its average benchmark score of 34,485, combined with its 84th percentile ranking, places it in the upper tier of the database's CPU rankings. The AMD Ryzen Embedded 8645HS, with no recorded scores and a 50th percentile ranking, sits in the middle of the distribution.