Intel Core i3-8145UE vs Intel Core i5-4440 Comparison

Head-to-Head Benchmarks

The benchmark data presents a remarkably consistent picture. Across every recorded Cinebench workload, the Intel Core i5-4440 holds a decisive advantage over the Intel Core i3-8145UE. In the multicore Cinebench R15 test, the i5-4440 scores 410 against 337 for the i3-8145UE, a 21.7% lead. The gap narrows only slightly in Cinebench R20 multicore, where the i5-4440 posts 1712 versus 1408, a 21.6% delta. The Cinebench R23 multicore results follow the same pattern: 4077 for the i5-4440 and 3354 for the i3-8145UE, again a 21.6% difference. These are not marginal wins; the i5-4440 is consistently more than one-fifth faster in multi-threaded rendering workloads.

The single-core results are equally one-sided. In Cinebench R20 single-core, the i5-4440 scores 241, while the i3-8145UE manages 198, a 21.7% advantage. Cinebench R23 single-core shows 575 for the i5-4440 and 473 for the i3-8145UE, a 21.6% gap. Notably, the i3-8145UE has a higher boost clock (3.90 GHz versus 3.30 GHz) and a newer architecture, yet it still trails by the same margin in single-threaded tests. The recorded data shows that the i5-4440 wins all five head-to-head benchmarks, leaving the i3-8145UE with zero wins.

The consistency of the delta, hovering around 21.6% to 21.7% across every test, suggests a fundamental throughput advantage rather than a workload-specific quirk. The i5-4440's average benchmark score of 1179 places it 2.2% above the i3-8145UE's 1154. Both processors sit at the 33rd percentile among all CPUs in the database, meaning they occupy similar overall standing, but the i5-4440 is clearly the stronger performer in direct comparison.

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Core i5-4440 has an average benchmark score of 1179, compared to 1154 for the Intel Core i3-8145UE.

Q: How much faster is the i5-4440 in Cinebench R15 multicore?

A: The i5-4440 scores 410 versus 337 for the i3-8145UE, a 21.7% advantage.

Q: Does the i3-8145UE win any benchmark in the head-to-head data?

A: No. The i5-4440 wins all five recorded head-to-head tests, with the i3-8145UE recording zero wins.

Q: What is the memory bandwidth of the i3-8145UE?

A: The i3-8145UE supports DDR4 memory with a dual-channel bus and has a recorded memory bandwidth of 38.4 GB/s. The i5-4440 uses DDR3 with a dual-channel bus, and no bandwidth figure is recorded for it.

Q: Which processor has a higher boost clock?

A: The i3-8145UE has a boost clock of 3.90 GHz, while the i5-4440 boosts to 3.30 GHz. Despite this, the i5-4440 still wins every single-core benchmark.

Q: What are the nearest rivals for each processor?

A: The i5-4440 sits closest to the Intel Core i5-3550, with a 0.1% higher average score (1179 versus 1178). The i3-8145UE sits closest to the AMD Opteron 4334, with a 0.1% lower average score (1154 versus 1155).

Architecture Differences

The two processors come from different architectural generations and target different market segments. The Intel Core i5-4440 is built on the Haswell architecture, a 22 nm desktop design with a die size of 177 mm² and 1,400 million transistors. It uses the Intel Socket 1150 and is classified as a desktop part. The Intel Core i3-8145UE, in contrast, belongs to the Whiskey Lake architecture, specifically the Whiskey Lake-U variant, and is built on a 10 nm process. Its transistor count and die size are not recorded in the database. It uses the Intel BGA 1528 socket and is a mobile part, with its production status listed as active.

The core configurations differ substantially. The i5-4440 has four physical cores and four threads, while the i3-8145UE has two physical cores and four threads, relying on hyper-threading to reach the same thread count. Both processors share the same per-core L1 cache (64 KB per core) and L2 cache (256 KB per core), but the shared L3 cache differs: the i5-4440 has 6 MB shared, while the i3-8145UE has 4 MB shared. This 2 MB L3 deficit, combined with half the physical cores, helps explain the consistent performance gap.

Memory support also diverges. The i5-4440 supports DDR3 memory, while the i3-8145UE supports DDR4. Both use a dual-channel memory bus. The i3-8145UE has a recorded memory bandwidth of 38.4 GB/s, a figure that is absent for the i5-4440. Neither processor supports ECC memory. Both use PCIe Gen 3, though the i3-8145UE is specified as having 16 lanes (CPU only), while the i5-4440 simply lists Gen 3 without a lane count.

Integrated graphics differ as well. The i5-4440 carries Intel HD 4600, while the i3-8145UE carries UHD Graphics 620. The i5-4440 lacks a recorded production status, whereas the i3-8145UE is listed as active. The release dates are far apart: the i5-4440 was released in August 2013, while the i3-8145UE arrived in September 2018. Neither processor has a launch MSRP recorded in the database.

The process node difference is significant: 22 nm for Haswell versus 10 nm for Whiskey Lake. The newer node allows the i3-8145UE to achieve a 15 W TDP, a stark contrast to the 84 W TDP of the i5-4440. This makes the i3-8145UE far more power-efficient on paper, though the benchmark data shows that efficiency comes at a substantial performance cost.

Specification Differences

The following specifications differ between the two processors:

• Cores: 4 (i5-4440) versus 2 (i3-8145UE)
• Base clock: 3.10 GHz (i5-4440) versus 2.20 GHz (i3-8145UE)
• Boost clock: 3.30 GHz (i5-4440) versus 3.90 GHz (i3-8145UE)
• TDP: 84 W (i5-4440) versus 15 W (i3-8145UE)
• Socket: Intel Socket 1150 (i5-4440) versus Intel BGA 1528 (i3-8145UE)
• Architecture: Haswell (i5-4440) versus Whiskey Lake (i3-8145UE)
• Process node: 22 nm (i5-4440) versus 10 nm (i3-8145UE)
• Transistors: 1,400 million (i5-4440) versus not recorded (i3-8145UE)
• Die size: 177 mm² (i5-4440) versus not recorded (i3-8145UE)
• L3 cache: 6 MB shared (i5-4440) versus 4 MB shared (i3-8145UE)
• Memory support: DDR3 (i5-4440) versus DDR4 (i3-8145UE)
• Memory bandwidth: not recorded (i5-4440) versus 38.4 GB/s (i3-8145UE)
• Integrated graphics: Intel HD 4600 (i5-4440) versus UHD Graphics 620 (i3-8145UE)
• Market segment: Desktop (i5-4440) versus Mobile (i3-8145UE)
• Production status: not recorded (i5-4440) versus Active (i3-8145UE)
• Release date: 2013-08-31 (i5-4440) versus 2018-09-30 (i3-8145UE)
• Part number: SR14F (i5-4440) versus SRFDT (i3-8145UE)

Thread count is identical at 4 for both, L1 and L2 caches are identical per core, both use dual-channel memory, both lack ECC support, both use PCIe Gen 3, and neither has an unlocked multiplier. Neither processor has a recorded launch MSRP.

Where Each One Wins

The Intel Core i5-4440 wins every recorded benchmark, making it the clear choice for raw compute performance. Its four physical cores provide a significant advantage in multithreaded workloads, and its higher base clock (3.10 GHz versus 2.20 GHz) helps it maintain a lead even in single-threaded tasks. The i5-4440 is therefore the better option for desktop workloads that prioritize throughput: rendering, compilation, content creation, or any task that can use multiple cores. Its 84 W TDP is a trade-off, but the performance data shows that this power budget buys a consistent 21.6% to 21.7% advantage across all Cinebench tests.

The Intel Core i3-8145UE, despite losing every benchmark, has its own domain of advantage. Its 15 W TDP makes it suitable for thermally constrained mobile environments where the i5-4440's 84 W desktop design would be impractical. The newer 10 nm process and DDR4 memory support with 38.4 GB/s bandwidth are modern features that the older Haswell part lacks. The i3-8145UE also has a higher boost clock (3.90 GHz versus 3.30 GHz), which may help in short, lightly threaded bursts, though the recorded single-core benchmarks show the i5-4440 still wins those tests. For applications that require long battery life, low heat output, or a compact BGA 1528 form factor, the i3-8145UE is the functional choice, even if it trails in raw performance.

The nearest rival data reinforces the positioning. The i5-4440 is closely matched with the Intel Core i5-3550 (0.1% higher average score) and the Intel Core i5-2400 (0.7% higher), placing it firmly in the mid-range desktop tier of its era. The i3-8145UE sits near the AMD Opteron 4334 and the AMD Ryzen Embedded R2312, with deltas of -0.1% and -0.2%, respectively, indicating it competes with low-power embedded and mobile parts rather than desktop workhorses. The use-case split is therefore straightforward: choose the i5-4440 for performance, choose the i3-8145UE for mobility and efficiency.