CPU Comparison
Intel Atom x7425E
Core i3-1005G1
PERFORMANCE BENCHMARKS
Analysis: Intel Atom x7425E vs Intel Core i3-1005G1
The Intel Atom x7425E and Intel Core i3-1005G1 are two mobile processors that land in the same performance tier, but they achieve that position through very different designs. Benchmark data shows a consistent, narrow advantage for the Atom part across all tested workloads, while the Core i3 holds its own in a few areas that the Cinebench suite does not capture.
Head-to-Head Benchmarks
The head-to-head results are remarkably one-sided. The Intel Atom x7425E wins all six Cinebench comparisons, with margins that stay tightly clustered between 7.9% and 8.8%. In Cinebench R23 multi-core, the Atom scores 4403 against the Core i3's 4070, an 8.2% advantage. The single-core R23 result follows the same pattern: 621 for the Atom versus 574 for the Core i3, again an 8.2% gap. This consistency across both single-threaded and multi-threaded tests suggests the performance difference is structural rather than workload-dependent.
The smallest margin appears in Cinebench R20 single-core, where the Atom leads 260 to 241, a 7.9% delta. The largest is in Cinebench R15 single-core, where the Atom's 62 points top the Core i3's 57 by 8.8%. Multi-core deltas sit at 8% to 8.2% across all three Cinebench versions. The Atom's win count stands at six, with zero wins for the Core i3. The average benchmark scores tell a similar story: the Atom averages 1273, while the Core i3 averages 1265, a difference of only 0.6% that places them as near-identical in overall performance. The Atom's nearest rivals include the Intel Core i5-4430S at 1274 (0% delta) and the Core i5-4670T at 1271 (0.2% delta), while the Core i3-1005G1 sits just below at 1265. The Core i3's own rival list includes the AMD Athlon 200GE at 1261 and the Intel Core i7-3615QM at 1260, both within 0.4% of its score. This clustering means the two processors are effectively in the same performance class, with the Atom holding a real but modest edge in every measured Cinebench test.
Architecture Differences
The two chips come from different design philosophies. The Atom x7425E uses the Alder Lake-N architecture with Gracemont cores, built on Intel's 10 nm process. It packs four cores and four threads, with a base clock of 1500 MHz and a boost clock of 3400 MHz. The Core i3-1005G1, by contrast, is an Ice Lake-U part with Sunny Cove cores, also on a 10 nm process, but with only two cores and four threads. Its base clock is lower at 1200 MHz, though its boost clock matches the Atom at 3400 MHz. The Core i3 has a die size of 123 mm², while the Atom's die size is not listed.
Cache layouts differ substantially. The Atom provides 96 KB of L1 per core and 2 MB of shared L2, plus 6 MB of shared L3. The Core i3 offers 64 KB of L1 per core, 256 KB of L2 per core, and only 4 MB of shared L3. The Atom's larger L3 cache and shared L2 design likely contribute to its consistent benchmark advantage, especially given its higher core count. Memory support also diverges: the Atom accepts both DDR4 and DDR5 in a single-channel configuration, delivering 38.4 GB/s of bandwidth. The Core i3 supports only DDR4 but uses dual-channel memory, achieving 51.2 GB/s. The Core i3's higher memory bandwidth is a notable counterweight to the Atom's core-count advantage, though it does not translate into Cinebench wins.
The Atom draws 12 W TDP, while the Core i3 draws 15 W. Both use Intel BGA sockets, but different ones: the Atom uses BGA 1264, and the Core i3 uses BGA 1526. Integrated graphics differ as well, with the Atom featuring UHD Graphics 24EU and the Core i3 featuring UHD Graphics (no EU count given). PCIe support is Gen 3 for both, though the Atom lists 9 lanes (CPU only) while the Core i3 lists no lane count. Neither chip supports ECC memory, and both have locked multipliers. The Atom's part number is SRMLN, while the Core i3's is SRG0SSRGKF. The Atom launched in January 2023, while the Core i3 launched in July 2019. The Atom has a launch MSRP of $58.
FAQ
Q: Which processor is faster in multi-core workloads?
A: The Intel Atom x7425E wins every multi-core Cinebench test. In Cinebench R23 multi-core, it scores 4403 versus the Core i3-1005G1's 4070, an 8.2% advantage. The R20 multi-core result is 1849 versus 1709 (8.2%), and the R15 multi-core result is 443 versus 410 (8%).
Q: Is the Core i3-1005G1 faster in single-core tasks?
A: No. The Atom x7425E wins all three single-core Cinebench tests as well. The margins are 8.8% in R15 (62 versus 57), 7.9% in R20 (260 versus 241), and 8.2% in R23 (621 versus 574). The Core i3 has no wins in any head-to-head benchmark.
Q: How do their average benchmark scores compare?
A: The Atom has an average benchmark score of 1273, while the Core i3 averages 1265. The Core i3 is listed as a nearest rival to the Atom with a deltaPct of 0.6%, meaning the Atom is 0.6% ahead. Both chips sit at the 35th percentile among all CPUs.
Q: What are the core and thread counts?
A: The Atom x7425E has 4 cores and 4 threads. The Core i3-1005G1 has 2 cores and 4 threads, using hyper-threading. Despite having half the physical cores, the Core i3's thread count matches the Atom's.
Q: Which chip has more cache?
A: The Atom x7425E has 6 MB of shared L3 cache and 2 MB of shared L2, with 96 KB of L1 per core. The Core i3-1005G1 has 4 MB of shared L3, 256 KB of L2 per core, and 64 KB of L1 per core. The Atom's total cache is clearly larger.
Q: Do both chips support the same memory?
A: No. The Atom supports both DDR4 and DDR5 in a single-channel configuration with 38.4 GB/s bandwidth. The Core i3 supports only DDR4 but uses dual-channel memory, reaching 51.2 GB/s bandwidth. The Core i3 has higher memory bandwidth despite the Atom's broader memory type support.
The Verdict
The data points to a clear but narrow winner. The Intel Atom x7425E outperforms the Intel Core i3-1005G1 in every benchmark where they share a test. The margins are consistent, ranging from 7.9% to 8.8%, which suggests a systematic advantage rather than a workload-specific quirk. The Atom achieves this with four physical cores versus the Core i3's two, plus a larger L3 cache (6 MB versus 4 MB) and a higher base clock (1500 MHz versus 1200 MHz). The Core i3's advantages, dual-channel memory with 51.2 GB/s bandwidth versus the Atom's single-channel 38.4 GB/s, and a lower TDP per core, do not show up as wins in the Cinebench suite. For users choosing between these two based purely on the available benchmark data, the Atom x7425E is the faster processor in both single-threaded and multi-threaded Cinebench workloads. The Core i3's only listed benchmark results beyond Cinebench are Geekbench scores (1978 multi-core, 1083 single-core), which the Atom does not have for comparison, so no cross-format verdict is possible.
Specification Differences
The two processors differ in several key specifications. The Atom has 4 cores and 4 threads, while the Core i3 has 2 cores and 4 threads. Base clocks differ: 1500 MHz for the Atom versus 1200 MHz for the Core i3, though both boost to 3400 MHz. TDP ratings are 12 W for the Atom and 15 W for the Core i3. The Atom uses socket Intel BGA 1264, and the Core i3 uses Intel BGA 1526. Architecture and generation differ: the Atom is Alder Lake (Alder Lake-N, Atom/Gracemont), while the Core i3 is Ice Lake (Ice Lake-U, Core i3/Sunny Cove-U). The Core i3 has a listed die size of 123 mm²; the Atom's is not listed. Cache configurations differ: the Atom has 96 KB L1 per core, 2 MB shared L2, and 6 MB shared L3, while the Core i3 has 64 KB L1 per core, 256 KB L2 per core, and 4 MB shared L3. Memory support differs: the Atom accepts DDR4 and DDR5 with a single-channel bus and 38.4 GB/s bandwidth, while the Core i3 accepts only DDR4 with a dual-channel bus and 51.2 GB/s bandwidth. PCIe support is Gen 3 for both, with the Atom listing 9 lanes (CPU only) and the Core i3 listing no lane count. Integrated graphics are UHD Graphics 24EU for the Atom and UHD Graphics for the Core i3. Release dates are January 2023 for the Atom and July 2019 for the Core i3. The Atom has a launch MSRP of $58; the Core i3 has none listed. Part numbers are SRMLN for the Atom and SRG0SSRGKF for the Core i3.
Where Each One Wins
The Intel Atom x7425E wins every head-to-head benchmark in the dataset. That includes all three Cinebench multi-core tests (R15, R20, R23) and all three single-core tests (R15, R20, R23). Its wins range from 7.9% to 8.8%, with the largest margin in Cinebench R15 single-core. The Atom also holds the higher average benchmark score (1273 versus 1265) and the higher core count (4 versus 2), along with more L3 cache (6 MB versus 4 MB) and a lower TDP (12 W versus 15 W). The Core i3-1005G1 has zero benchmark wins in the head-to-head data. Its only listed advantages are technical: dual-channel memory with higher bandwidth (51.2 GB/s versus 38.4 GB/s), a smaller socket (BGA 1526 versus BGA 1264), and a listed die size of 123 mm². The Core i3 also has Geekbench scores (1978 multi-core, 1083 single-core) that have no Atom counterpart, so those cannot be compared directly. For workloads that resemble Cinebench rendering, meaning heavy multi-threaded compute and single-threaded responsiveness, the Atom x7425E is the stronger choice. The Core i3's dual-channel memory bandwidth might benefit memory-sensitive tasks, but no benchmark data in the pack confirms this. Based strictly on the measured results, the Atom x7425E is the pick for anyone prioritizing Cinebench-class performance, while the Core i3 offers no demonstrated benchmark advantage.