AMD Ryzen 5 PRO 8645HS vs Intel Core i9-14901E Comparison

Architecture Differences

The AMD Ryzen 5 PRO 8645HS and Intel Core i9-14901E represent fundamentally different design philosophies. The AMD part uses the Zen 4 architecture under the Hawk Point codename, built on a 4 nm process at TSMC. The Intel processor uses Raptor Lake architecture with the Raptor Lake-R codename, manufactured on a 10 nm process at Intel's own foundry. This process gap is significant: the AMD chip packs 25,000 million transistors into a 178 mm² die, while Intel's design spans a larger 257 mm² die.

Core configurations diverge sharply. The Ryzen 5 PRO 8645HS offers 6 cores and 12 threads, while the Core i9-14901E provides 8 cores and 16 threads. Cache hierarchies also differ. AMD uses 64 KB of L1 per core, 1 MB of L2 per core, and 16 MB of shared L3. Intel allocates 80 KB of L1 per core, 2 MB of L2 per core, and a substantially larger 36 MB of shared L3. The Intel chip's larger L3 cache gives it more headroom for data-heavy workloads.

Clock behavior further separates the two. The AMD processor has a base clock of 4.30 GHz and a boost clock of 5.00 GHz. Intel's part runs a lower 2.80 GHz base but boosts higher to 5.60 GHz. The power envelope differs as well: AMD is rated at 45 W TDP, Intel at 65 W TDP. Socket compatibility is entirely different, with AMD using Socket FP7 and Intel using Socket 1700. The AMD chip belongs to the mobile segment, while Intel's part is a desktop processor.

Memory support shows another split. Both support dual-channel memory and ECC, but AMD only supports DDR5 with a recorded bandwidth of 89.6 GB/s. Intel supports both DDR4 and DDR5, though the database does not record a bandwidth figure. PCIe connectivity also differs: AMD provides Gen 4 with 20 lanes from the CPU, while Intel provides Gen 5 with 16 lanes. Integrated graphics are present on both, with AMD using Radeon 760M and Intel using UHD Graphics 770.

Where Each One Wins

The benchmark data paints a clear picture: Intel wins 16 of the 17 head-to-head tests. The single AMD victory comes in PassMark extended instructions, where the Ryzen 5 PRO 8645HS scores 21212 against Intel's 17249, a 23% advantage. This suggests the AMD architecture handles specialized instruction sets more efficiently, likely a result of the Zen 4 design's instruction handling.

Every other measured category favors Intel. In Cinebench tests, the Core i9-14901E wins all six variants, both single-core and multi-core. PassMark tests show Intel dominance across data compression, encryption, prime number finding, floating point math, integer math, multithreaded performance, physics, random string sorting, and single-threaded tests.

The largest Intel advantages appear in specific computational workloads. Prime number finding shows Intel ahead by 61.4%, and physics simulation shows a 60.3% lead. Floating point math favors Intel by 43.9%, integer math by 35.5%. These are substantial margins that indicate raw compute throughput advantages rather than marginal wins.

The AMD chip's win in extended instructions is notable, but it represents a narrow slice of the overall benchmark picture. For general processing, rendering, simulation, and data manipulation, the Intel processor holds a consistent lead. The data indicates the AMD part is competitive in specialized instruction execution but falls behind in broader workload categories.

Specification Differences

The two processors differ across nearly every specification field recorded in the database.

Cores and Threads: AMD has 6 cores and 12 threads. Intel has 8 cores and 16 threads.

Clock Speeds: AMD base clock is 4.30 GHz with a 5.00 GHz boost. Intel base clock is 2.80 GHz with a 5.60 GHz boost.

TDP: AMD is rated at 45 W. Intel is rated at 65 W.

Socket: AMD uses AMD Socket FP7. Intel uses Intel Socket 1700.

Architecture and Process: AMD uses Zen 4 on a 4 nm TSMC process. Intel uses Raptor Lake on a 10 nm Intel process.

Die Size: AMD measures 178 mm². Intel measures 257 mm².

Transistors: AMD has 25,000 million. Intel has no recorded figure.

Cache: AMD provides 64 KB L1 per core, 1 MB L2 per core, 16 MB shared L3. Intel provides 80 KB L1 per core, 2 MB L2 per core, 36 MB shared L3.

Memory: AMD supports DDR5 only, dual-channel, with 89.6 GB/s bandwidth. Intel supports DDR4 and DDR5, dual-channel, with no recorded bandwidth.

PCIe: AMD offers Gen 4 with 20 CPU lanes. Intel offers Gen 5 with 16 CPU lanes.

Integrated Graphics: AMD uses Radeon 760M. Intel uses UHD Graphics 770.

Market Segment: AMD is mobile. Intel is desktop.

Release Date: AMD launched 2024-04-15. Intel launched 2024-06-30.

Multiplier: Both are locked; neither has an unlocked multiplier.

Head-to-Head Benchmarks

The Cinebench results show a consistent pattern across all three versions of the test. In Cinebench R15 multi-core, Intel scores 2595 against AMD's 1989, a 23.4% lead. Single-core R15 shows 366 against 280, a 23.5% margin. Cinebench R20 multi-core gives Intel 10816 versus 8291, a 23.3% advantage, and single-core gives 1526 versus 1170, also 23.3%. Cinebench R23 multi-core shows 25753 versus 19742, and single-core shows 3635 versus 2787, both at 23.3% deltas. The consistency of these margins across different Cinebench versions indicates a stable performance ratio between the two processors in rendering workloads.

PassMark results reveal where Intel's advantages concentrate. The largest gap appears in prime number finding: Intel scores 189 against AMD's 73, a 61.4% lead. Physics shows a similar scale: 3041 versus 1208, a 60.3% margin. Floating point math gives Intel 81089 against 45481, a 43.9% advantage. Integer math shows 112736 against 72740, a 35.5% lead.

Smaller but still meaningful gaps appear in multithreaded performance: Intel scores 30298 versus 23569, a 22.2% advantage. Single-thread tests show 4354 versus 3858, an 11.4% margin. Random string sorting gives Intel 39138 versus 35472, a 9.4% lead. Data compression shows 288777 versus 265826, a 7.9% edge. Data encryption is closest among Intel wins: 18571 versus 17387, a 6.4% margin.

The single AMD win comes in extended instructions: 21212 versus 17249, a 23% advantage for the Ryzen 5 PRO 8645HS. This is the only test where AMD's architecture demonstrates superiority.

Overall average benchmark scores confirm the hierarchy. AMD's average is 30879, placing it at the 82nd percentile of all CPUs. Intel's average is 37911, placing it at the 86th percentile. Intel's nearest rivals include the AMD Ryzen AI 9 HX 370 with a 0% delta and the AMD Ryzen 7 9700X with a 0.1% delta. AMD's nearest rivals include the AMD Ryzen 7 8700F at 0.4% and the Intel Core i7-13700TE at 0.5% negative delta.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core i9-14901E has 8 cores and 16 threads. The AMD Ryzen 5 PRO 8645HS has 6 cores and 12 threads.

Q: What is the largest benchmark margin between the two?

A: The largest margin is in PassMark find prime numbers, where Intel leads by 61.4%, scoring 189 against AMD's 73.

Q: Does the AMD processor win any benchmark?

A: Yes, the AMD Ryzen 5 PRO 8645HS wins PassMark extended instructions with a score of 21212, a 23% advantage over Intel's 17249.

Q: Which processor has the higher boost clock?

A: The Intel Core i9-14901E boosts to 5.60 GHz. The AMD Ryzen 5 PRO 8645HS boosts to 5.00 GHz.

Q: How do the average benchmark scores compare?

A: Intel averages 37911 across all benchmarks, while AMD averages 30879. Intel sits at the 86th percentile of all CPUs; AMD sits at the 82nd percentile.

Q: Which processor supports more memory types?

A: The Intel Core i9-14901E supports both DDR4 and DDR5. The AMD Ryzen 5 PRO 8645HS supports DDR5 only.

The Verdict

The data consistently favors the Intel Core i9-14901E across nearly every measured workload. Its 8-core, 16-thread configuration, larger 36 MB L3 cache, and higher 5.60 GHz boost clock translate into decisive wins in Cinebench rendering tests, PassMark multithreaded performance, physics simulation, floating point math, and integer math. The 23.3% to 23.5% margins across all Cinebench variants indicate a stable, predictable advantage in CPU-bound rendering tasks.

The Ryzen 5 PRO 8645HS is not without merit. Its 45 W TDP makes it a lower-power option, and its 4 nm process at TSMC represents a more advanced manufacturing node. The 23% win in extended instructions shows the Zen 4 architecture handles specialized instruction sets effectively. The 89.6 GB/s memory bandwidth on DDR5 support gives it a defined memory throughput figure that Intel's part lacks in the database.

Users prioritizing raw compute performance, multi-threaded productivity, and rendering workloads should look to the Intel Core i9-14901E. The data shows it leads by 22.2% in multithreaded PassMark and by 23.3% in Cinebench R23 multi-core. Users who need a lower-power mobile processor with efficient instruction handling and a smaller die footprint would find the AMD Ryzen 5 PRO 8645HS suitable, though the benchmark record shows it trails in most performance categories. The percentile rankings reinforce this: Intel at 86th versus AMD at 82nd among all CPUs. For general-purpose processing, the Intel part delivers consistently higher scores across the board.