AMD Ryzen 9 7945HX3D vs Intel Core i9-14900F Comparison

The Intel Core i9-14900F and AMD Ryzen 9 7945HX3D represent two fundamentally different approaches to high-end computing, one a desktop flagship and the other a mobile part, yet their benchmark data places them in direct competition. The overall average benchmark scores are remarkably close, with the Intel chip posting an average of 60,008 against the AMD’s 59,641, a margin of just 0.6% in favor of Intel. Both processors sit at the 92nd percentile of all CPUs, and the rival data confirms their proximity, showing the Intel part as 0.6% ahead of the AMD in aggregate. However, this near-parity in overall averages masks a dramatic divergence in individual workloads, where each chip dominates in distinct categories.

Head-to-Head Benchmarks

The most striking contrast appears in the Cinebench suite, where the two chips trade blows with enormous margins. In the R15 single-core test, the Intel Core i9-14900F scores 562 against the AMD’s 311, a massive 80.7% advantage. That gap widens further in R23 single-core, where Intel’s 5,583 dwarfs AMD’s 1,935, representing a 188.5% lead. These are not minor differences; they indicate a fundamental advantage in lightly-threaded performance for the Intel architecture. The PassMark single-thread test corroborates this, with Intel scoring 4,506 to AMD’s 4,050, an 11.3% edge.

The situation reverses completely in multi-threaded Cinebench R15. Here, the AMD Ryzen 9 7945HX3D scores 5,600 versus Intel’s 3,986, giving AMD a 28.8% victory. This is a peculiar result, as the newer R23 multi-core test tells a different story: Intel wins that one with 39,551 against AMD’s 32,782, a 20.6% margin. The discrepancy between the R15 and R23 multi-core results suggests the tests stress different aspects of the processors, with AMD’s cache-heavy design excelling in the older workload while Intel’s higher clock speeds prevail in the newer one.

Looking at Geekbench, Intel takes the multi-core crown with 20,008 versus 16,758, a 19.4% lead, but AMD wins the single-core test 2,769 to 2,570, a 7.2% edge. This single-core Geekbench result runs counter to the Cinebench single-core findings, highlighting how different benchmark suites can prioritize different microarchitectural features. PassMark paints a clearer picture overall, with AMD winning 11 of the 17 head-to-head benchmarks. In PassMark’s integer math test, AMD leads 201,217 to 177,066, a 12% advantage. The floating-point math test is closer, with AMD ahead at 121,619 versus 119,550, a slim 1.7% margin. AMD’s lead expands dramatically in extended instructions, where its score of 52,310 surpasses Intel’s 31,084 by 40.6%.

The PassMark data compression test shows AMD’s 699,988 against Intel’s 564,207, a 19.4% win, while data encryption goes to AMD at 42,367 versus 34,644, an 18.2% margin. AMD also dominates in find prime numbers, scoring 446 to Intel’s 209, a 53.1% advantage. The multithreaded PassMark score favors AMD at 57,476 versus 46,532, a 19% difference, and the physics test shows AMD ahead with 4,321 versus 2,899, a 32.9% gap. Random string sorting completes the AMD sweep in PassMark, with 83,919 against 63,728, a 24.1% win. The final tally stands at 11 wins for AMD and 6 for Intel, yet the average benchmark scores remain nearly identical because Intel’s wins in Cinebench are so decisive.

FAQ

Q: Why do the average benchmark scores show a near tie when AMD wins more individual tests?

A: The Intel Core i9-14900F averages 60,008 overall, just 0.6% ahead of the AMD Ryzen 9 7945HX3D’s 59,641. Intel’s victories include the Cinebench R23 multi-core test where it leads by 20.6%, and the R23 single-core test with a 188.5% margin, which are weighted heavily enough to offset AMD’s more numerous but comparatively smaller wins in PassMark tests.

Q: Which processor has the higher boost clock?

A: The Intel Core i9-14900F boosts to 5.80 GHz, while the AMD Ryzen 9 7945HX3D reaches 5.40 GHz. Intel’s higher boost clock contributes to its strong single-core scores in Cinebench, though AMD still manages to win the Geekbench single-core test with 2,769 versus 2,570.

Q: What is the core and thread configuration for each chip?

A: The Intel Core i9-14900F has 24 cores and 32 threads, while the AMD Ryzen 9 7945HX3D has 16 cores and 32 threads. Both support the same thread count, but Intel achieves it with more physical cores, whereas AMD relies on simultaneous multithreading across fewer cores.

Q: How do the cache sizes compare?

A: The AMD Ryzen 9 7945HX3D features 128 MB of shared L3 cache, which includes a 64 MB 3D V-Cache slice, while the Intel Core i9-14900F has 36 MB of shared L3 cache. AMD’s larger cache likely explains its dominance in data compression, where it scores 699,988 versus 564,207.

Q: Are both processors unlocked for overclocking?

A: No. The AMD Ryzen 9 7945HX3D has its multiplier unlocked, while the Intel Core i9-14900F does not. This means the AMD chip offers more flexibility for users seeking manual performance tuning, though the benchmark data already reflects stock configurations.

Q: Which processor supports more PCIe lanes?

A: The AMD Ryzen 9 7945HX3D provides Gen 5 with 28 lanes from the CPU, while the Intel Core i9-14900F offers Gen 5 with 16 lanes. This gives the AMD platform more headroom for expansion devices, though the Intel chip still supports the same PCIe generation.

Architecture Differences

The two processors are built on entirely different architectural foundations. Intel’s Core i9-14900F uses the Raptor Lake architecture, specifically the Raptor Lake-R refresh, fabricated on a 10 nm process at Intel’s own foundry. The AMD Ryzen 9 7945HX3D employs the Zen 4 architecture under the Dragon Range codename, manufactured by TSMC on a 5 nm process. AMD’s chip integrates 17,840 million transistors across a dual-die design with a die size of 2x 71 mm², while Intel’s monolithic die measures 257 mm². The process node difference is significant, with AMD’s 5 nm offering a density advantage over Intel’s 10 nm.

Cache hierarchies differ substantially. Intel provides 80 KB of L1 per core and 2 MB of L2 per core, with 36 MB of shared L3. AMD counters with 64 KB of L1 per core and 1 MB of L2 per core, but its shared L3 jumps to 128 MB, augmented by a dedicated 64 MB 3D V-Cache slice. This 3D-stacked cache is a defining feature of the AMD part, absent from the Intel chip, and it directly influences performance in cache-sensitive workloads like data compression and encryption. The memory controllers also diverge: Intel supports both DDR4 and DDR5 memory, while AMD supports only DDR5. AMD specifies a memory bandwidth of 83.2 GB/s, a figure not listed for Intel. Both chips support ECC memory and dual-channel memory buses.

The market positioning and integrated features differ as well. Intel’s part targets the desktop segment with no integrated graphics, while AMD’s mobile chip includes a Radeon 610M iGPU. AMD’s socket is AMD Socket FL1, whereas Intel uses Intel Socket 1700. The PCIe capabilities also vary, with AMD offering 28 Gen 5 lanes versus Intel’s 16 Gen 5 lanes. AMD’s production status is Active, as is Intel’s, but their release dates differ, with AMD launching on 2023-07-26 and Intel on 2024-01-07. The Intel part carries a launch MSRP of $524, while no MSRP is listed for the AMD chip.

Specification Differences

The most apparent difference is the core count, with the Intel Core i9-14900F offering 24 cores versus the AMD Ryzen 9 7945HX3D’s 16 cores, though both present 32 threads. Base clocks differ, with Intel at 2.00 GHz and AMD at 2.30 GHz, but Intel’s boost clock reaches 5.80 GHz compared to AMD’s 5.40 GHz. Thermal design power favors AMD, which lists 55 W against Intel’s 65 W. The sockets are incompatible, with Intel on Socket 1700 and AMD on Socket FL1. Process nodes differ, with Intel at 10 nm and AMD at 5 nm, and the foundries are likewise different, Intel versus TSMC.

Cache specifications show the largest divergence in L3 capacity, where AMD’s 128 MB shared cache is over three times larger than Intel’s 36 MB. The L1 and L2 caches are smaller per core on AMD, but the total L3 advantage is decisive. Memory support differs, with Intel accepting both DDR4 and DDR5 while AMD only accepts DDR5. AMD lists a memory bandwidth of 83.2 GB/s, a figure absent for Intel. PCIe lane counts vary, with AMD at 28 Gen 5 lanes and Intel at 16 Gen 5 lanes. Integrated graphics appear only on the AMD chip, as the Radeon 610M, while Intel has none. The market segments are split between Desktop for Intel and Mobile for AMD. The multiplier is unlocked on AMD but locked on Intel, and the part numbers differ, with Intel’s SRN3W and AMD’s 100-000001086.

The Verdict

The data presents a nuanced picture. For users prioritizing single-threaded performance in Cinebench, the Intel Core i9-14900F is the clear choice, with an 80.7% lead in R15 single-core and a 188.5% lead in R23 single-core. Its PassMark single-thread score of 4,506 also beats AMD’s 4,050 by 11.3%. The Intel chip also wins the more modern Cinebench R23 multi-core test by 20.6% and the Geekbench multi-core test by 19.4%, making it the stronger option for software that scales well across its 24 cores. However, the AMD Ryzen 9 7945HX3D dominates the PassMark suite, winning 11 of 17 benchmarks, including substantial leads in data compression, encryption, extended instructions, and prime number calculations. Its 128 MB L3 cache appears to provide a significant edge in these specific workloads.

The overall average benchmark scores are nearly identical, with Intel at 60,008 and AMD at 59,641, a 0.6% difference. Both sit at the 92nd percentile, confirming their status as top-tier processors. The choice hinges on workload composition. A user running Cinebench-style rendering or heavily threaded applications that favor Intel’s core count and clock speeds would benefit more from the Intel chip. Conversely, users dealing with data compression, encryption, or other cache-sensitive tasks would see better results from the AMD processor. The AMD chip’s lower TDP and integrated graphics also make it a more versatile option for mobile systems, while the Intel chip’s desktop focus and higher boost clock cater to a different use case.

Where Each One Wins

The Intel Core i9-14900F secures its wins in six benchmark categories. It takes both Cinebench single-core tests decisively, with scores of 562 and 5,583 against AMD’s 311 and 1,935. The R23 multi-core test goes to Intel at 39,551 versus 32,782, and the Geekbench multi-core test favors Intel at 20,008 versus 16,758. The PassMark single-thread test also goes to Intel, with 4,506 versus 4,050. These wins indicate Intel’s strength in applications that rely on high clock speeds and traditional multi-core scaling, particularly in rendering workloads modeled by Cinebench.

The AMD Ryzen 9 7945HX3D wins 11 benchmarks, covering a broader range of tasks. Its PassMark victories span data compression at 699,988, data encryption at 42,367, extended instructions at 52,310, prime number finding at 446, floating-point math at 121,619, integer math at 201,217, multithread at 57,476, physics at 4,321, and random string sorting at 83,919. It also wins the Cinebench R15 multi-core test at 5,600 versus 3,986 and the Geekbench single-core test at 2,769 versus 2,570. This pattern shows AMD’s dominance in computational tasks involving large datasets, encryption, and mathematical operations, where the 128 MB L3 cache provides a clear advantage. The AMD chip’s wins are more numerous, but Intel’s victories are often larger in margin, particularly in single-core Cinebench tests.