Intel Core 3 305 vs Intel Core i7-14700HX Comparison

The Intel Core 3 305 and Intel Core i7-14700HX occupy very different positions in the mobile processor lineup. The Core 3 305 is a low-power, efficiency-focused part built on a modern process, while the Core i7-14700HX is a high-core-count powerhouse designed for maximum throughput. The benchmark data confirms a wide performance gulf, with the Core i7 winning 15 of 17 head-to-head tests, though the Core 3 305 does claim a narrow victory in single-threaded Passmark testing.

Head-to-Head Benchmarks

The most decisive victories for the Intel Core i7-14700HX come in multi-threaded and math-intensive workloads. In Cinebench R15 multi-core, the Core i7 scores 3812 against the Core 3 305's 1322, a delta of -65.3% for the smaller chip. Cinebench R20 multi-core shows a similar pattern: 13059 versus 5511, a -57.8% difference. Cinebench R23 multi-core narrows the gap slightly but still favors the Core i7 by -46.6%, with scores of 24595 and 13123 respectively.

Integer math is where the Core i7 absolutely dominates. The Passmark integer math test shows the Core i7 at 131296 versus 32295 for the Core 3 305, a massive -75.4% delta. Data compression also heavily favors the Core i7: 438539 versus 146857, a -66.5% difference. Floating point math tells the same story, with the Core i7 scoring 93836 against 42284, a -54.9% gap. These results indicate the Core i7's 20 cores and 28 threads provide a substantial advantage in heavily parallelized compute tasks.

The single-core results are closer. Cinebench R23 single-core shows the Core i7 ahead at 2103 versus 1852, a -11.9% delta. Cinebench R20 single-core has a wider gap: 1843 versus 777, a -57.8% difference, which is an outlier compared to the other single-threaded tests. Cinebench R15 single-core also favors the Core i7 by -37.2%, scoring 296 versus 186.

The Intel Core 3 305 does win two tests, both Passmark single-threaded benchmarks. It scores 3977 versus 3947 for the Core i7, a 0.8% margin. This is a slim but real victory, suggesting the Core 3 305's modern architecture and high boost clock deliver competitive per-core performance in at least one measurement. However, this is the only area where the Core 3 305 leads, and the margin is negligible in practical terms.

Other notable wins for the Core i7 include data encryption at 26092 versus 11019 (-57.8%), extended instructions at 25718 versus 13543 (-47.3%), physics at 2252 versus 1233 (-45.2%), and random string sorting at 48544 versus 17623 (-63.7%). The Core i7 also wins Passmark multithread at 36566 versus 15439 (-57.8%) and find prime numbers at 165 versus 115 (-30.3%).

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Core i7-14700HX has an average benchmark score of 45953, while the Intel Core 3 305 averages 18302. The Core i7 ranks in the 89th percentile of all CPUs, compared to the 72nd percentile for the Core 3 305.

Q: How close are the nearest rivals for each processor?

A: The Core 3 305's closest rivals are the Intel Core i3-14100 with an average score of 18318 (-0.1% delta), the Intel Core 5 330 at 18345 (-0.2%), the Intel Core 7 360 at 18374 (-0.4%), and the AMD Ryzen 5 2600E at 18230 (0.4%). The Core i7-14700HX sits near the AMD EPYC 7303 at 45960 (0% delta), AMD EPYC 4364P at 45970 (0%), AMD Ryzen AI 9 HX 375 at 46030 (-0.2%), and Intel Core Ultra 5 235 at 46062 (-0.2%).

Q: Does the Core 3 305 have a higher boost clock?

A: No. The Core 3 305 boosts to 4.30 GHz, while the Core i7-14700HX boosts to 5.50 GHz. The Core i7 also has a higher base clock at 2.10 GHz versus 1.50 GHz.

Q: What is the memory bandwidth for the Core 3 305?

A: The Core 3 305 supports DDR5 and LPDDR5X memory with a single-channel bus and a recorded memory bandwidth of 59.7 GB/s. The Core i7-14700HX supports DDR4 and DDR5 with a dual-channel bus, though its memory bandwidth is not listed in the database.

Q: Which processor supports ECC memory?

A: The Intel Core i7-14700HX supports ECC memory. The Intel Core 3 305 does not have ECC memory support.

Q: How many PCIe lanes does each processor provide?

A: The Core i7-14700HX provides Gen 5 with 16 lanes (CPU only). The Core 3 305 provides Gen 4 with 6 lanes (CPU only).

Architecture Differences

The two processors are built on fundamentally different designs. The Intel Core 3 305 uses a 3 nm process node at Intel's foundry, with the codename Wildcat Lake. It has 6 cores and 6 threads, meaning no hyper-threading. The Core i7-14700HX uses a 10 nm node (Raptor Lake-HX Refresh) and has 20 cores with 28 threads, indicating a hybrid architecture with performance and efficiency cores. The die size for the Core i7 is 257 mm², while the die size for the Core 3 is not recorded.

Cache configurations differ significantly. The Core 3 305 has 192 KB of L1 cache, 2.5 MB of L2 cache, and 6 MB of shared L3 cache. The Core i7-14700HX has 80 KB of L1 cache per core, 2 MB of L2 cache per core, and 33 MB of shared L3 cache. The larger L3 cache on the Core i7 provides a major advantage for workloads that repeatedly access large datasets.

Memory support also diverges. The Core 3 305 uses DDR5 and LPDDR5X with a single-channel memory bus. The Core i7-14700HX supports both DDR4 and DDR5 over a dual-channel bus, which doubles the potential memory bandwidth. The Core 3 305's measured memory bandwidth is 59.7 GB/s, while the Core i7's is not specified in the data.

Integrated graphics differ as well. The Core 3 305 uses Intel Xe3 Graphics with 1 Xe core, a newer graphics architecture. The Core i7-14700HX uses UHD Graphics 770, which is an older design. The PCIe support also differs: the Core 3 305 has Gen 4 with 6 lanes, while the Core i7-14700HX has Gen 5 with 16 lanes.

The Core i7-14700HX has an unlocked multiplier, while the Core 3 305 does not. This makes the Core i7 more flexible for overclocking, provided the laptop's cooling and BIOS allow it. The Core 3 305 was released on 2026-04-15, while the Core i7-14700HX was released on 2024-01-07. The Core 3 305 has a launch MSRP of $309, while the Core i7's launch MSRP is not listed.

The Verdict

The data supports a clear split in intended use cases. The Intel Core i7-14700HX is the superior choice for any workload that benefits from many cores and threads. Its wins span every multi-threaded benchmark, with deltas ranging from -30.3% in find prime numbers to -75.4% in integer math. The average benchmark score of 45953 versus 18302 reinforces this dominance. The Core i7 also holds an edge in most single-threaded tests, including Cinebench R23 single-core at 2103 versus 1852.

The Intel Core 3 305 should only be selected when its specific advantages matter. It wins Passmark single-thread by a 0.8% margin, and its 3 nm process node suggests better power efficiency at its 15 W TDP compared to the Core i7's 55 W TDP. The Core 3 305 also has a smaller physical footprint, using the Intel BGA 1516 socket versus the Core i7's BGA 1964, which may matter for compact laptop designs.

For raw performance, the choice is unambiguous. The Core i7-14700HX delivers roughly 2.5 times the average benchmark score and wins 15 of 17 head-to-head tests. The Core 3 305 is only competitive in one narrow single-threaded measurement, and even there the margin is under 1%. The recorded data provides no scenario where the Core 3 305 outperforms the Core i7 in a meaningful multi-threaded task.

Specification Differences

The following fields differ between the two processors:

• Cores: 6 (Core 3) versus 20 (Core i7)
• Threads: 6 versus 28
• Base Clock: 1.50 GHz versus 2.10 GHz
• Boost Clock: 4.30 GHz versus 5.50 GHz
• TDP: 15 W versus 55 W
• Socket: Intel BGA 1516 versus Intel BGA 1964
• Codename: Wildcat Lake versus Raptor Lake-HX
• Process Node: 3 nm versus 10 nm
• Die Size: Not recorded versus 257 mm²
• L1 Cache: 192 KB versus 80 KB per core
• L2 Cache: 2.5 MB versus 2 MB per core
• L3 Cache: 6 MB shared versus 33 MB shared
• Memory Support: DDR5, LPDDR5X versus DDR4, DDR5
• Memory Bus: Single-channel versus Dual-channel
• Memory Bandwidth: 59.7 GB/s versus not recorded
• ECC Memory: False versus True
• PCIe: Gen 4, 6 lanes versus Gen 5, 16 lanes
• Integrated Graphics: Intel Xe3 Graphics (1 Xe) versus UHD Graphics 770
• Release Date: 2026-04-15 versus 2024-01-07
• Launch MSRP: $309 versus not recorded
• Multiplier Unlocked: False versus True
• Part Number: SAE3L versus SRMXG

Where Each One Wins

The Intel Core i7-14700HX wins in every multi-threaded and throughput-oriented category. This includes Cinebench R15, R20, and R23 multi-core tests, plus all Passmark workloads except single-thread. The largest advantages come in integer math (-75.4%), data compression (-66.5%), and random string sorting (-63.7%). The Core i7 also wins all single-core Cinebench tests, with deltas ranging from -11.9% in R23 to -57.8% in R20. Its 28 threads and 33 MB of L3 cache make it the clear pick for rendering, video encoding, scientific simulation, and any software that scales across cores.

The Intel Core 3 305 wins only Passmark single-thread and Passmark singlethread, both at 3977 versus 3947 for the Core i7. The 0.8% margin is the only recorded victory for the Core 3. Its 3 nm process node and 15 W TDP indicate a design focused on energy efficiency, which is not directly benchmarked but is reflected in the TDP specification. The Core 3 also uses the newer Intel Xe3 Graphics architecture, which may offer different integrated graphics capabilities compared to the older UHD Graphics 770, though no graphics benchmarks are recorded in the data.

For a laptop buyer, the choice depends on whether sustained multi-threaded performance or efficiency is the priority. The Core i7-14700HX provides a 151% higher average benchmark score and a 17-point higher percentile ranking. The Core 3 305 provides a newer process node, lower TDP, and a narrow win in one single-threaded test. The data shows no overlap in performance tiers: the Core i7 is for demanding workloads, while the Core 3 is for basic tasks where battery life and heat matter more than throughput.