AMD Ryzen 7 8840HX vs Intel Core 7 350 Comparison

Where Each One Wins

The recorded benchmark data splits this comparison into two distinct profiles. The AMD Ryzen 7 8840HX wins 10 of the 13 head-to-head tests, establishing dominance in multi-threaded and throughput-oriented workloads. The Intel Core 7 350 takes 3 wins, all in single-threaded or lightly threaded tasks.

The AMD part leads in Cinebench R23 multicore, PassMark data compression, data encryption, extended instructions, prime number finding, floating point math, integer math, multithread, physics, and random string sorting. These workloads share a common trait: they scale with core count, thread count, and cache capacity. The Ryzen 7 8840HX delivers a 214.6% advantage in Cinebench R23 multicore, a 334.3% lead in PassMark integer math, and a 246.9% margin in data compression. Those are not incremental gaps; they represent a different performance class for parallel workloads.

The Intel Core 7 350 wins in Cinebench R23 singlecore, PassMark single-thread, and PassMark singlethread (the latter two are duplicate tests with identical results). Its single-core scores are 2046 versus 1857 in Cinebench R23 singlecore, a 9.2% advantage. In PassMark single-thread, it scores 4100 versus 3958, a 3.5% edge. The Intel chip also shows a higher boost clock at 4.80 GHz versus 5.10 GHz for AMD, so the single-thread win comes despite a lower peak frequency, suggesting better per-clock efficiency in lightly threaded code.

The use-case split is clear. For rendering, compilation, data processing, encryption, and any workload that can use many threads, the AMD Ryzen 7 8840HX is the dominant part. For everyday responsiveness, lightly threaded applications, and tasks where single-core speed matters most, the Intel Core 7 350 holds a modest but measurable advantage.

Architecture Differences

The two processors come from fundamentally different design philosophies. The AMD Ryzen 7 8840HX uses Zen 4 architecture on a 5 nm TSMC process, built under the Dragon Range codename within the 8000 series. It packs 12 cores and 24 threads, with a base clock of 2.90 GHz and a boost clock of 5.10 GHz. The thermal design power is 55 watts, and it sits in an AMD Socket FL1. The chip uses a dual-die design with a die size of 2x 71 mm² and integrates 13,140 million transistors. Its cache layout includes 64 KB L1 per core, 1 MB L2 per core, and a large 64 MB shared L3 cache. Memory support is dual-channel DDR5 with a peak bandwidth of 83.2 GB/s. The PCIe interface is Gen 5 with 28 lanes from the CPU. Integrated graphics come from a Radeon 610M. The multiplier is unlocked, allowing overclocking, and the part number is 100-000001850.

The Intel Core 7 350 uses a different approach entirely. It belongs to the Wildcat Lake codename within the Core 5 generation, built on a 3 nm Intel process. It has 6 cores and 6 threads, meaning no Hyper-Threading support. Base clock is 1.50 GHz with a boost clock of 4.80 GHz. The thermal design power is just 15 watts, a third of the AMD part's 55 watt envelope. It uses an Intel BGA 1516 socket. The cache structure is notably different: 192 KB L1 per core, 2.5 MB L2 per core, but only 6 MB of shared L3. That smaller L3 pool is a significant handicap for workloads that depend on large shared cache. Memory support includes DDR5 and LPDDR5X, but the bus is single-channel with a peak bandwidth of 59.7 GB/s, which is 28% lower than the AMD part's dual-channel figure. The PCIe interface is Gen 4 with only 6 lanes. Integrated graphics are Intel Xe3 Graphics with 2 Xe cores. The multiplier is locked, and the launch MSRP is $469.

The architectural contrast matters beyond raw numbers. The AMD part doubles the core count, quadruples the thread count, and offers more than ten times the L3 cache (64 MB versus 6 MB). It also uses dual-channel memory versus single-channel, which directly impacts memory-bound throughput. The Intel part counters with a newer 3 nm process and higher per-core L1/L2 capacities (192 KB L1 and 2.5 MB L2 versus 64 KB and 1 MB), which helps explain its single-thread advantage. The 15 watt TDP also positions the Intel chip for thermally constrained mobile designs, while the 55 watt AMD part targets high-performance laptops.

Head-to-Head Benchmarks

The largest single win for the AMD Ryzen 7 8840HX comes in PassMark integer math, where it scores 146506 against 33734, a 334.3% advantage. That is the widest margin in the dataset. Data compression follows at 246.9% (496427 versus 143123). Random string sorting shows a 236.3% lead (57971 versus 17238). Extended instructions deliver a 203.3% gap (36527 versus 12045). Prime number finding shows 184.1% (304 versus 107). Multithread performance is 175.1% higher (41732 versus 15170). Data encryption comes in at 173.7% (29919 versus 10933). Cinebench R23 multicore shows 214.6% (25265 versus 8030). Floating point math is 102.6% ahead (86747 versus 42809). Physics tests show an 86.3% margin (2185 versus 1173).

The Intel Core 7 350 wins are smaller but consistent. Cinebench R23 singlecore shows 2046 versus 1857, a 9.2% advantage. PassMark single-thread and singlethread both show 4100 versus 3958, a 3.5% lead. These wins confirm that the Intel chip has superior per-core performance in lightly threaded workloads, despite its lower boost clock.

The average benchmark score tells the same story. The AMD Ryzen 7 8840HX has an average score of 71797, placing it in the 94th percentile of all CPUs. Its nearest rivals include the Intel Core Ultra 7 265KF at 71910 (a 0.2% deficit), the Intel Xeon Platinum 8270 at 71370 (a 0.6% lead), and the Intel Xeon 6517P and 6724P both around 72350-72396 (0.8% deficits). The Intel Core 7 350 has an average score of 17779, placing it in the 71st percentile. Its nearest rivals are the Intel Core 5 221TE at 17860 (0.5% deficit), the AMD EPYC 9374F at 17693 (0.5% lead), the AMD Ryzen 5 3600XT at 17891 (0.6% deficit), and the Intel Core 5 120U at 17898 (0.7% deficit).

The percentile gap is stark: 94th versus 71st. That means the AMD part outperforms 94% of all recorded CPUs, while the Intel chip outperforms 71%. The average score difference is roughly 4x (71797 versus 17779), which aligns with the multicore benchmark margins.

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen 7 8840HX has 12 cores and 24 threads. The Intel Core 7 350 has 6 cores and 6 threads.

Q: What is the single-thread performance comparison?

A: The Intel Core 7 350 wins in Cinebench R23 singlecore with 2046 versus 1857 (a 9.2% advantage) and in PassMark single-thread with 4100 versus 3958 (a 3.5% advantage).

Q: How large is the L3 cache difference?

A: The AMD Ryzen 7 8840HX has 64 MB of shared L3 cache. The Intel Core 7 350 has 6 MB of shared L3 cache. That is a 10.7x difference.

Q: What memory configurations do they support?

A: The AMD part uses dual-channel DDR5 with 83.2 GB/s bandwidth. The Intel part uses single-channel DDR5 or LPDDR5X with 59.7 GB/s bandwidth.

Q: Which chip has a higher boost clock?

A: The AMD Ryzen 7 8840HX boosts to 5.10 GHz. The Intel Core 7 350 boosts to 4.80 GHz. Despite the lower boost clock, the Intel chip wins single-thread tests.

Q: What are the thermal design power ratings?

A: The AMD Ryzen 7 8840HX has a 55 watt TDP. The Intel Core 7 350 has a 15 watt TDP.

The Verdict

The data supports a clear division of purpose. The AMD Ryzen 7 8840HX is the superior processor for multi-threaded, throughput-heavy workloads. Its 12 cores, 24 threads, 64 MB L3 cache, dual-channel memory, and 94th percentile ranking make it the choice for content creation, scientific computing, data processing, and virtualization. It wins 10 of 13 head-to-head tests, often by margins exceeding 200%. The 334.3% lead in integer math and 246.9% lead in data compression are not marginal improvements; they are class-level differences.

The Intel Core 7 350 is the better part for single-threaded responsiveness and power-sensitive mobile designs. Its 15 watt TDP is a fraction of the AMD part's 55 watt envelope, which matters for battery life and thermal management in thin laptops. Its 3 nm Intel process and larger per-core L1/L2 caches deliver a 9.2% single-core win in Cinebench R23 and a 3.5% win in PassMark single-thread. The 71st percentile ranking still places it above most CPUs, but its 6 MB L3 and single-channel memory limit its performance in heavy parallel tasks.

The choice depends on workload priority. For a machine that must render frames, compile code, encrypt data, or process large datasets, the AMD Ryzen 7 8840HX is the only rational option given the recorded data. For a laptop focused on everyday tasks, battery life, and light single-threaded applications, the Intel Core 7 350 offers competent performance at a much lower power draw. The Intel part's launch MSRP is $469, which provides a reference point for its market positioning, but the performance gap in multi-threaded tests is so large that the price difference alone does not close the functional distance. The database shows two different processors for two different jobs, and neither can substitute for the other in its respective domain.