AMD Ryzen 7 8745HX vs Intel Core Ultra 7 366H Comparison

Head-to-Head Benchmarks

The recorded benchmark data shows a clear split between the AMD Ryzen 7 8745HX and the Intel Core Ultra 7 366H, with Intel taking 7 of the 11 head-to-head comparisons. The Intel chip wins the PassMark multi-thread test with a score of 33429 against 31517 for AMD, a 5.7% advantage. That result is notable because the AMD part has 8 cores and 16 threads, while the Intel part has 16 cores and 16 threads, so the Intel chip leverages its wider core count effectively in parallel workloads.

The largest margin of victory for Intel comes in the floating point math test, where the Core Ultra 7 366H scores 103615 versus 61972 for the Ryzen 7 8745HX. That is a 40.2% difference, a decisive gap for any workload that relies heavily on FPU throughput. The physics test shows a similar pattern, with Intel scoring 2880 against AMD's 1681, a 41.6% delta. The find prime numbers test is also heavily Intel-favored: 326 versus 159, a 51.2% lead. Data encryption goes to Intel as well, 25845 against 21840, a 15.5% edge.

The AMD side is not without strong wins. Integer math goes to the Ryzen 7 8745HX with 100328 versus 83695, a 19.9% margin, the largest AMD win in the set. Data compression favors AMD at 363759 against 327455, an 11.1% lead. Random string sorting also goes to AMD, 44494 versus 39814, an 11.8% margin. Extended instructions are close, with AMD at 27638 against 26901, a 2.7% edge. Single-thread performance is Intel-favored but narrow: 4043 versus 3879, a 4.1% delta.

The average benchmark score tells a different story than the head-to-head results. The AMD Ryzen 7 8745HX posts an average benchmark score of 60104, while the Intel Core Ultra 7 366H sits at 41263. That places the AMD chip in the 92nd percentile of all CPUs in the database, compared to the 87th percentile for Intel. This discrepancy between average score and direct comparison results suggests the AMD part's strong scores in certain tests carry more weight in the aggregate metric, or that the Intel part's benchmark profile is more uneven when other tests are included.

FAQ

Q: Which processor wins more head-to-head benchmark comparisons?

A: The Intel Core Ultra 7 366H wins 7 of the 11 recorded head-to-head tests. The AMD Ryzen 7 8745HX wins the remaining 4.

Q: How much faster is the Intel chip in floating point math?

A: The Intel Core Ultra 7 366H scores 103615 in PassMark floating point math, which is 40.2% higher than the AMD Ryzen 7 8745HX score of 61972.

Q: Where does the AMD processor show its biggest advantage?

A: The AMD Ryzen 7 8745HX leads by 19.9% in integer math (100328 versus 83695). It also leads by 11.8% in random string sorting and 11.1% in data compression.

Q: How do the two chips compare in single-thread performance?

A: The Intel chip has a small lead in single-thread performance, scoring 4043 versus 3879 for AMD, a 4.1% difference.

Q: What do the percentile rankings indicate?

A: The AMD Ryzen 7 8745HX is in the 92nd percentile of all CPUs in the database, while the Intel Core Ultra 7 366H is in the 87th percentile.

Q: Which chip has a higher average benchmark score?

A: The AMD Ryzen 7 8745HX has an average benchmark score of 60104, well above the Intel Core Ultra 7 366H at 41263.

Architecture Differences

The two processors come from different foundries and process nodes. The AMD Ryzen 7 8745HX uses a 5 nm process from TSMC, while the Intel Core Ultra 7 366H uses a 3 nm process from Intel. The AMD chip is built on the Zen 4 architecture with the Dragon Range codename, part of the 8000 series. The Intel chip uses the Panther Lake architecture with the Panther Lake-H codename, part of the Core Ultra Series 3.

Core counts differ substantially. The AMD part has 8 cores and 16 threads, while the Intel part has 16 cores and 16 threads. The Intel chip does not use simultaneous multithreading in this configuration, so its core count equals its thread count. The AMD chip doubles its threads through SMT on each of its 8 cores.

Cache layouts are also distinct. The AMD Ryzen 7 8745HX has 64 KB of L1 cache per core, 1 MB of L2 cache per core, and 32 MB of shared L3 cache. The Intel Core Ultra 7 366H has 192 KB of L1 cache per core, 2.5 MB of L2 cache per core, and 18 MB of shared L3 cache. The per-core cache amounts are larger on the Intel side, but the total L3 pool is larger on the AMD side.

Clock speeds favor AMD. The Ryzen 7 8745HX has a base clock of 3.60 GHz and a boost clock of 5.10 GHz. The Core Ultra 7 366H has a base clock of 2.00 GHz and a boost clock of 4.80 GHz. The AMD chip also has a higher TDP at 55 watts versus 25 watts for the Intel part, which explains some of the performance differences in sustained workloads.

Memory support differs as well. The AMD chip supports DDR5 on a dual-channel bus with 83.2 GB/s of bandwidth. The Intel chip supports both DDR5 and LPDDR5X on a dual-channel bus with 115.2 GB/s of bandwidth. Neither chip supports ECC memory.

PCIe lanes are not equal. The AMD Ryzen 7 8745HX provides Gen 5 with 28 lanes from the CPU, while the Intel Core Ultra 7 366H provides Gen 5 with 12 lanes from the CPU. Integrated graphics also differ: AMD uses the Radeon 610M, while Intel uses the Xe3 Graphics.

The AMD chip has an unlocked multiplier, while the Intel chip does not. The AMD processor reports a transistor count of 6,570 million on a 71 mm² die, while the Intel part has no transistor count or die size recorded in the database. The AMD part uses the AMD Socket FL1, and the Intel part uses Intel BGA 2540.

The Verdict

The data points to different strengths for each chip. The AMD Ryzen 7 8745HX is the higher-performing chip in the aggregate database metrics, with an average benchmark score of 60104 and a 92nd percentile ranking. Its nearest rivals include the AMD Ryzen 9 7945HX at 60099 and the Intel Core i9-14900F at 60008, both within 0.2% of its score. That places it in desktop-class company despite being a mobile processor.

The Intel Core Ultra 7 366H sits in a lower performance tier by average score, at 41263, with nearest rivals including the Intel Core Ultra 7 356H at 41215 and the AMD Ryzen 9 5900X at 41376. Its 87th percentile ranking is still strong, but the average score gap of roughly 18,800 points between the two chips is significant.

However, the direct head-to-head results favor Intel in more tests. The Intel chip wins the multi-thread test, the single-thread test, floating point math, physics, find prime numbers, and data encryption. The AMD chip wins integer math, data compression, random string sorting, and extended instructions. For workloads that resemble the Intel-favored tests, the Core Ultra 7 366H is the better choice despite its lower aggregate score. For workloads that resemble the AMD-favored tests, the Ryzen 7 8745HX holds the edge.

The choice depends on which benchmark profile matters more. The AMD chip offers higher peak single-core boost clocks, more PCIe lanes, and a larger L3 cache. The Intel chip offers more cores, a newer process node, higher memory bandwidth, and lower power consumption. Neither chip is a universal winner; each delivers clear advantages in specific test categories.

Specification Differences

The two processors differ in nearly every major specification category. The AMD Ryzen 7 8745HX has 8 cores and 16 threads, while the Intel Core Ultra 7 366H has 16 cores and 16 threads. Base clocks are 3.60 GHz for AMD and 2.00 GHz for Intel. Boost clocks are 5.10 GHz for AMD and 4.80 GHz for Intel. TDP is 55 watts for AMD and 25 watts for Intel.

Process technology separates them clearly: 5 nm TSMC for AMD versus 3 nm Intel for the Intel part. The AMD chip uses the Zen 4 architecture and Dragon Range codename, while the Intel chip uses Panther Lake architecture and Panther Lake-H codename. Sockets are AMD Socket FL1 versus Intel BGA 2540.

Cache configurations differ in both per-core and shared amounts. AMD uses 64 KB L1 per core, 1 MB L2 per core, and 32 MB L3 shared. Intel uses 192 KB L1 per core, 2.5 MB L2 per core, and 18 MB L3 shared. Memory bandwidth is 83.2 GB/s for AMD and 115.2 GB/s for Intel. Memory support is DDR5 for AMD, while Intel supports DDR5 and LPDDR5X.

PCIe connectivity differs: 28 Gen 5 lanes for AMD versus 12 Gen 5 lanes for Intel. Integrated graphics are Radeon 610M on the AMD side and Intel Xe3 Graphics on the Intel side. The AMD multiplier is unlocked; the Intel multiplier is locked. The AMD chip reports 6,570 million transistors on a 71 mm² die; no comparable data exists for the Intel chip. The AMD part is from the 8000 series, and the Intel part is from the Core Ultra Series 3.

Where Each One Wins

The AMD Ryzen 7 8745HX wins in workloads that depend on integer math, compression, and sorting. Its 19.9% lead in integer math and 11.1% lead in data compression make it the stronger choice for database-style operations, file archiving, and general productivity tasks that process large amounts of structured data. The 11.8% advantage in random string sorting reinforces this pattern. The extended instructions result, a 2.7% win, adds a small edge in code that uses optimized instruction paths.

The Intel Core Ultra 7 366H wins in floating point math by 40.2%, in physics by 41.6%, and in prime number finding by 51.2%. These are compute-heavy, numerically intensive tasks. The multi-thread win of 5.7% and the single-thread win of 4.1% give Intel the broader base of performance across general CPU benchmarks. Data encryption also favors Intel by 15.5%, which matters for security-related workloads.

The aggregate picture is more complex. The AMD chip has the higher average benchmark score and the higher percentile ranking among all CPUs. Its nearest rival is the AMD Ryzen 9 7945HX, essentially tied at a 0% delta, and it sits ahead of the Intel Core i9-14900F by 0.2%. The Intel chip's nearest rival is the Intel Core Ultra 7 356H at 0.1% delta, with the AMD Ryzen 9 5900X just 0.3% behind. This places the Intel chip in competition with desktop-class parts from previous generations, while the AMD chip competes with current high-end desktop CPUs.

For users prioritizing raw multi-thread throughput in scientific or physics-heavy workloads, the Intel chip delivers the better direct benchmark results. For users prioritizing integer-heavy business applications, data compression, and sorting tasks, the AMD chip shows the stronger numbers. The Intel chip also uses less power at 25 watts TDP, which suits thinner mobile chassis, while the AMD chip's 55 watt TDP suggests it needs more robust cooling. The AMD chip provides more PCIe lanes for expansion, and its unlocked multiplier offers flexibility that the locked Intel part cannot match.