CPU Comparison

The Intel Core i5-4430S and the Intel Atom x7425E occupy the same overall performance percentile, but their benchmark results tell a story of clear generational divergence. Both processors sit at the 35th percentile among all CPUs, and their average benchmark scores are nearly identical, 1274 for the i5-4430S versus 1273 for the Atom x7425E, a delta of just 0.1%. This statistical tie in aggregate, however, masks a consistent sweep in the head-to-head tests. The Atom x7425E wins all six direct comparisons, with the Core i5-4430S trailing by margins between 15.7% and 16.1% across the board. These are not narrow victories; they represent a systematic performance gap in every measured workload.

Head-to-Head Benchmarks

The most striking pattern in the data is the uniformity of the Atom x7425E's advantage. In Cinebench R15 multi-core, the Atom scores 443 against the i5-4430S's 373, a 15.8% deficit for the older chip. The single-core test tells the same story: 62 versus 52, a 16.1% gap. Moving to Cinebench R20, the Atom extends its multi-core lead to 1849 versus 1558, again a 15.7% difference, while single-core shows 260 against 219, a 15.8% delta. The pattern holds in Cinebench R23, where the Atom posts 4403 multi-core and 621 single-core, compared to the i5-4430S's 3710 and 523, deficits of 15.7% and 15.8%, respectively.

What is remarkable is the consistency of these margins. Whether the workload is single-threaded or multi-threaded, and regardless of the Cinebench version, the Atom x7425E maintains a lead of roughly 16%. This suggests a fundamental architectural advantage rather than a workload-specific quirk. The i5-4430S, despite its higher base clock of 2.70 GHz versus the Atom's 1.50 GHz, cannot overcome the newer design's efficiency. The Atom's boost clock of 3.40 GHz, slightly higher than the i5's 3.20 GHz, may contribute, but the sheer uniformity of the delta points to deeper differences in instruction handling and memory architecture.

The Geekbench results, which are only available for the i5-4430S in this dataset, show it scoring 2773 multi-core and 980 single-core. Without a direct Atom comparison, these numbers serve as a reference point for the i5's overall capability. The fact that the Atom beats the i5 by nearly 16% in all six head-to-head tests while the i5's average benchmark score is only 0.1% higher than the Atom's suggests that the missing Geekbench data for the Atom would likely follow the same pattern. The data implies that the Atom's lead is consistent across benchmark suites, not an artifact of a single test methodology.

Where Each One Wins

The Atom x7425E wins every benchmark category in the head-to-head comparison, which makes the use-case split unusually one-sided. For multi-threaded workloads, the Atom's Cinebench R23 multi-core score of 4403 versus 3710 represents a clear 15.7% advantage. This is significant for rendering tasks, video encoding, or any application that scales across all four cores. The Atom's shared 2 MB L2 cache and 6 MB L3 cache, combined with its 10 nm Gracemont architecture, appear to handle parallel workloads more efficiently than the Haswell design in the i5-4430S.

Single-threaded performance also favors the Atom, with a 15.8% lead in Cinebench R23 single-core (621 versus 523). This matters for everyday responsiveness, legacy software that uses one core heavily, and certain gaming scenarios. The Atom's higher boost clock of 3.40 GHz versus 3.20 GHz on the i5 likely plays a role, but the per-core cache differences, 96 KB L1 per core on the Atom versus 64 KB on the i5, may also contribute to the faster single-thread execution.

The i5-4430S has no benchmark wins to claim. Its only potential advantages lie outside the performance metrics: it supports dual-channel DDR3 memory versus the Atom's single-channel DDR4/DDR5, and it uses a desktop socket (Intel Socket 1150) that allows for upgrades or repairs. The Atom, by contrast, is a mobile part on BGA 1264, which is typically soldered and not user-replaceable. For users prioritizing raw computational speed in every measured test, the Atom is the clear choice. The i5's value proposition would have to rest on platform compatibility or memory bandwidth, not on benchmark scores.

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Core i5-4430S has an average benchmark score of 1274, while the Intel Atom x7425E scores 1273. The difference is 0.1%, with the i5 holding a razor-thin edge.

Q: How does the Atom x7425E compare in Cinebench R23 multi-core?

A: The Atom x7425E scores 4403 in Cinebench R23 multi-core, while the i5-4430S scores 3710. This gives the Atom a 15.7% lead in that test.

Q: Are there any benchmarks where the i5-4430S wins?

A: No. In the six head-to-head benchmarks (Cinebench R15, R20, and R23, both single and multi-core), the Atom x7425E wins every single test. The i5-4430S has zero wins.

Q: What is the TDP difference between the two chips?

A: The Intel Core i5-4430S has a TDP of 65 watts, while the Intel Atom x7425E has a TDP of just 12 watts. This makes the Atom significantly more power-efficient.

Q: Do both processors have the same number of cores and threads?

A: Yes, both the i5-4430S and the Atom x7425E have 4 cores and 4 threads. Neither supports hyper-threading or simultaneous multi-threading.

Q: What is the memory bandwidth of the Atom x7425E?

A: The Atom x7425E has a memory bandwidth of 38.4 GB/s, while the i5-4430S does not have a listed memory bandwidth figure in the data. The Atom supports DDR4 and DDR5 memory in a single-channel configuration.

Specification Differences

The two processors differ in nearly every specification field. The i5-4430S has a base clock of 2.70 GHz and a boost clock of 3.20 GHz, while the Atom x7425E has a base clock of 1.50 GHz and a boost clock of 3.40 GHz. The Atom's boost is higher, but its base is substantially lower. TDP is a major divergence: the i5 draws 65 watts, the Atom just 12 watts. The i5 uses Intel Socket 1150, while the Atom uses Intel BGA 1264, reflecting their different market segments, Desktop for the i5, Mobile for the Atom.

Cache layouts also differ. The i5 has 64 KB of L1 per core and 256 KB of L2 per core, with 6 MB of shared L3. The Atom has 96 KB of L1 per core, a shared 2 MB L2, and 6 MB of shared L3. The i5 supports DDR3 memory in dual-channel mode, while the Atom supports DDR4 and DDR5 in single-channel mode, with a specified bandwidth of 38.4 GB/s. PCIe support is Gen 3 for both, but the Atom specifies "9 Lanes (CPU only)" while the i5 does not list a lane count. The i5's integrated graphics is Intel HD 4600, while the Atom has UHD Graphics 24EU. The Atom has a launch MSRP of $58, while the i5 has no listed launch MSRP.

Architecture Differences

The architectural gap between these two chips is substantial. The i5-4430S is built on Intel's Haswell architecture, a 22 nm process with 1,400 million transistors on a 177 mm² die. It belongs to the Core i5 (Haswell) generation. The Atom x7425E uses Alder Lake-N architecture, specifically the Gracemont core design, on a 10 nm process. The Atom's transistor count and die size are not listed, but the process node difference alone, 22 nm versus 10 nm, explains much of the efficiency gap.

The cache hierarchy tells a story of different design philosophies. The i5 uses per-core L1 and L2 caches (64 KB and 256 KB per core, respectively), with a shared 6 MB L3. The Atom increases L1 to 96 KB per core but switches to a shared 2 MB L2, retaining a shared 6 MB L3. The shared L2 on the Atom suggests a more unified approach to multi-core data sharing, which may contribute to its multi-threaded advantage. The i5's larger per-core L2 could benefit certain latency-sensitive single-threaded tasks, but the benchmark data does not reflect this advantage.

Memory architecture differs fundamentally. The i5 uses dual-channel DDR3, a memory type that was standard in 2013. The Atom supports both DDR4 and DDR5, but only in single-channel mode, with a maximum bandwidth of 38.4 GB/s. The i5 does not have a bandwidth figure listed, making direct comparison impossible, but the generational leap in memory technology is evident. The Atom's release date of 2023, versus the i5's 2013, means the Atom benefits from a decade of memory and interconnect improvements. The i5's production status is not listed, while the Atom is marked as "Active," indicating it is still in production.

The Verdict

The benchmark data is unambiguous: the Intel Atom x7425E outperforms the Intel Core i5-4430S in every measured test. The Atom wins all six head-to-head benchmarks, with margins ranging from 15.7% to 16.1%. Its Cinebench R23 multi-core score of 4403 versus 3710 represents a substantial lead, and its single-core advantage of 621 versus 523 is equally decisive. For anyone choosing purely on computational performance, the Atom x7425E is the correct pick.

The i5-4430S retains some platform advantages that the benchmark data does not capture. It uses a desktop socket, allowing for potential future upgrades, and its dual-channel DDR3 memory configuration may offer higher bandwidth in memory-sensitive applications, though no bandwidth figure is provided to confirm this. The i5 also has a lower boost clock (3.20 GHz versus 3.40 GHz), but this does not translate into any performance win.

The Atom's 12-watt TDP, compared to the i5's 65 watts, makes it dramatically more power-efficient. For mobile or low-power applications, the Atom is not just faster but also consumes about 18% of the i5's thermal budget. The Atom's active production status and 2023 release date mean it is a current, supported part, while the i5's status is unlisted and its 2013 release suggests it is legacy. The data supports a clear verdict: the Atom x7425E is the superior processor for raw performance per watt and across all benchmark categories. The i5-4430S is only preferable if the desktop socket or dual-channel DDR3 is a hard requirement, but even then, the performance gap is a steep price to pay.