AMD Ryzen 9 7945HX vs Intel Core i9-14900 Comparison

Head-to-Head Benchmarks

The recorded data shows a clear split between the AMD Ryzen 9 7945HX and the Intel Core i9-14900: AMD dominates heavily threaded workloads, while Intel takes the single-thread crown. Out of 17 head-to-head benchmark comparisons, the Ryzen 9 7945HX wins 11, with the Core i9-14900 winning 6. The margin of victory, however, tells the more interesting story.

The AMD processor's biggest win comes in PassMark extended instructions, where it scores 51,834 against Intel's 30,624, a massive 69.3% advantage. This is the largest delta in the entire comparison. The Ryzen 9 7945HX also crushes the Core i9-14900 in PassMark data compression, scoring 707,249 versus 550,271, a 28.5% lead. Data encryption shows a similar pattern: 42,703 for AMD versus 33,540 for Intel, a 27.3% gap. In random string sorting, AMD leads 81,736 to 61,060, a 33.9% advantage.

The Cinebench results reinforce AMD's multi-core superiority. In Cinebench R23 multi-core, the Ryzen 9 7945HX scores 33,459 against Intel's 31,070, a 7.7% lead. The Cinebench R15 multi-core test shows a 10.3% gap, with AMD at 5,289 and Intel at 4,793. PassMark multi-thread also favors AMD, 54,548 versus 44,578, a 22.4% margin. Integer math goes to AMD as well, 207,524 versus 175,010, an 18.6% advantage. Even the closer results favor AMD: floating point math is a 2.6% win, physics a slim 0.6% win, and find prime numbers a 51.1% blowout at 284 versus 188.

Intel's wins are all in single-thread or lightly threaded tests. The Core i9-14900 takes Cinebench R23 single-core with 2,212 versus AMD's 1,940, a 12.3% lead. Cinebench R15 single-core goes to Intel by 2.2%, 315 versus 308. Geekbench single-core favors Intel by 3.9%, 2,488 versus 2,391. PassMark single-thread shows Intel at 4,323 against AMD's 4,040, a 6.5% margin. The Core i9-14900 also wins Geekbench multi-core, albeit narrowly, 18,495 versus 18,254, a 1.3% lead despite losing most other multi-threaded tests.

The Verdict

The data points to two very different usage profiles. If your work is heavily parallel, meaning rendering, encoding, scientific computing, or data processing, the AMD Ryzen 9 7945HX is the stronger choice. Its 7.7% lead in Cinebench R23 multi-core and 22.4% lead in PassMark multi-thread are substantial, and the 69.3% advantage in extended instructions suggests AMD handles AVX-class workloads far better.

If your priority is single-thread responsiveness, gaming with lightly threaded engines, or applications that scale poorly across cores, the Intel Core i9-14900 has the edge. The 12.3% lead in Cinebench R23 single-core and 6.5% lead in PassMark single-thread are meaningful for tasks that depend on one or two fast cores.

The overall database percentile ranking puts both processors at the 92nd percentile among all CPUs, meaning they sit at the same tier of overall performance. The average benchmark score for the Ryzen 9 7945HX is 60,099, while the Core i9-14900 averages 58,115. The nearest rivals for AMD include the Ryzen 7 8745HX at 60,104 (0% delta) and the Core i9-14900F at 60,008 (0.2% delta), while Intel's nearest rivals include the Xeon Platinum 8260M at 58,323 (-0.4% delta) and the Ryzen 7 9850X3D at 58,386 (-0.5% delta). Neither processor is far from its closest competitors, but AMD's average sits modestly higher.

Architecture Differences

The two chips come from fundamentally different design philosophies. The AMD Ryzen 9 7945HX uses the Zen 4 architecture under the Dragon Range codename, built on a 5 nm process at TSMC. It packs 13,140 million transistors across a dual-die design measuring 2x 71 mm². The Intel Core i9-14900 uses the Raptor Lake architecture, specifically the Raptor Lake-R refresh, built on a 10 nm process at Intel with a monolithic die of 257 mm².

The core configurations differ substantially. The Ryzen 9 7945HX has 16 cores and 32 threads, all of them full-size Zen 4 cores. The Core i9-14900 has 24 cores and 32 threads, using Intel's hybrid design with performance cores and efficiency cores, though the database does not break down the exact P-core/E-core split. Both achieve 32 threads total, but AMD does it with fewer, larger cores while Intel relies on more cores with mixed capabilities.

Cache layouts also diverge. The Ryzen 9 7945HX provides 64 KB of L1 per core, 1 MB of L2 per core, and 64 MB of shared L3 cache. The Core i9-14900 has 80 KB of L1 per core, 2 MB of L2 per core, but only 36 MB of shared L3. AMD's larger L3 pool likely contributes to its strong showing in data compression and encryption tests.

Both processors support ECC memory, a notable feature for workstation reliability. The AMD chip supports DDR5 memory only, while Intel supports both DDR4 and DDR5. Memory bandwidth is listed at 83.2 GB/s for AMD; Intel's figure is not recorded.

The integrated graphics differ: AMD includes the Radeon 610M, while Intel has the UHD Graphics 770. Both are basic integrated solutions, but the database does not provide comparative graphics benchmarks.

Specification Differences

The key differences in recorded specifications are as follows:

• Cores: AMD has 16, Intel has 24.
• Threads: Both have 32.
• Base clock: AMD runs at 2.50 GHz, Intel at 2.00 GHz.
• Boost clock: AMD reaches 5.40 GHz, Intel reaches 5.80 GHz.
• TDP: AMD is rated at 55 W, Intel at 65 W.
• Process node: AMD uses 5 nm, Intel uses 10 nm.
• Socket: AMD uses Socket FL1, Intel uses Socket 1700.
• Market segment: AMD is mobile, Intel is desktop.
• Release date: AMD launched 2023-01-03, Intel launched 2024-01-07.
• Unlocked multiplier: AMD is unlocked, Intel is locked.
• PCIe lanes: AMD offers Gen 5 with 28 lanes, Intel offers Gen 5 with 16 lanes.
• Memory support: AMD supports DDR5 only, Intel supports DDR4 and DDR5.
• L3 cache: AMD has 64 MB shared, Intel has 36 MB shared.
• Transistors: AMD has 13,140 million, Intel figure not recorded.
• Die size: AMD uses 2x 71 mm², Intel uses 257 mm².
• Integrated graphics: AMD has Radeon 610M, Intel has UHD Graphics 770.
• Launch MSRP: Intel is listed at $549; AMD has no recorded MSRP.

These differences explain the benchmark outcomes. The AMD chip's lower TDP of 55 W versus Intel's 65 W is notable for a mobile part, suggesting better efficiency per watt. The higher boost clock on Intel (5.80 GHz versus 5.40 GHz) aligns with its single-thread wins.

FAQ

Q: Which processor wins in multi-core Cinebench R23?

A: The AMD Ryzen 9 7945HX scores 33,459 versus Intel's 31,070, a 7.7% lead.

Q: Which processor has the higher single-thread score in PassMark?

A: The Intel Core i9-14900 scores 4,323 against AMD's 4,040, a 6.5% advantage.

Q: How do the two compare in data encryption workloads?

A: The AMD Ryzen 9 7945HX scores 42,703 in PassMark data encryption, 27.3% ahead of Intel's 33,540.

Q: What is the core count difference?

A: The AMD has 16 cores, while the Intel has 24 cores. Both have 32 threads.

Q: Which processor supports more memory types?

A: The Intel Core i9-14900 supports both DDR4 and DDR5, while the AMD Ryzen 9 7945HX supports DDR5 only.

Q: What is the TDP difference?

A: The AMD Ryzen 9 7945HX is rated at 55 W, while the Intel Core i9-14900 is rated at 65 W.

Where Each One Wins

The AMD Ryzen 9 7945HX wins in 11 of 17 head-to-head tests, making it the clear choice for throughput-oriented workloads. Its largest margins are in extended instructions (69.3% ahead), random string sorting (33.9% ahead), and data compression (28.5% ahead). These results suggest AMD is the better pick for data processing, compression tasks, encryption workloads, and any AVX-heavy code. The 22.4% lead in PassMark multi-thread and 18.6% lead in integer math further support AMD for parallel compute. The 51.1% win in find prime numbers indicates strong performance in mathematical workloads. The Ryzen 9 7945HX also wins Cinebench R23 multi-core by 7.7%, making it suitable for rendering and content creation that scales across cores.

The Intel Core i9-14900 wins in 6 of 17 tests, all involving single-thread performance. Its 12.3% lead in Cinebench R23 single-core is the largest. The 6.5% lead in PassMark single-thread and 3.9% lead in Geekbench single-core confirm Intel's strength in lightly threaded applications. The narrow 1.3% win in Geekbench multi-core, despite losing most other multi-thread tests, suggests Intel's hybrid architecture handles certain mixed workloads well. For gaming, where single-thread speed often dominates, or for legacy applications with poor multi-threading, the Core i9-14900 has the advantage. Its higher boost clock of 5.80 GHz versus 5.40 GHz likely drives these wins.

The overall picture is one of complementary strengths. The AMD Ryzen 9 7945HX is a multi-core beast with a 55 W TDP, suited for mobile workstations where parallel performance matters. The Intel Core i9-14900 is a desktop part with superior single-core speed and a 65 W TDP. Both sit at the 92nd percentile of all CPUs, but the database average benchmark score favors AMD at 60,099 versus 58,115. The choice comes down to workload: AMD for throughput, Intel for latency-sensitive single-thread tasks.