Intel Atom C5315 vs Intel Core i3-1000NG4 Comparison

Head-to-Head Benchmarks

The benchmark data presents a remarkably consistent picture: the Intel Core i3-1000NG4 wins every single head-to-head comparison against the Intel Atom C5315, with all five recorded deltas falling within a narrow band of 18% to 18.8%. This uniformity across different rendering workloads suggests a fundamental performance advantage rather than a workload-specific quirk. In Cinebench R15 multicore, the i3-1000NG4 scores 301 against the Atom's 255, an 18% gap. Moving to Cinebench R20 multicore, the i3-1000NG4 posts 1255 versus 1063, a nearly identical 18.1% lead. The R23 multicore test shows the same story: 2989 for the i3-1000NG4 and 2533 for the Atom, again an 18% difference.

Single-core performance tells a similar tale, though with slightly larger margins. In Cinebench R20 single-core, the i3-1000NG4 scores 177 against the Atom's 149, an 18.8% advantage, the largest delta in the entire dataset. The R23 single-core test shows 422 versus 357, an 18.2% edge. Notably, the Atom C5315 does not have a recorded Cinebench R15 single-core score in the database, so that comparison is absent. The i3-1000NG4's average benchmark score of 881 sits just 1.1% above the Atom's 871, a smaller gap than the individual Cinebench tests suggest. Both processors occupy the 23rd percentile among all CPUs, meaning they land in the same performance tier overall, despite the i3-1000NG4's consistent head-to-head victories.

The nearest rivals for each chip provide additional context. The i3-1000NG4 matches the AMD Phenom II X6 1035T and the AMD Athlon Silver 7120U exactly, both at an average score of 881. It also trades blows with the Intel Core i7-930 (882, a 0.1% deficit) and the AMD PRO A12-8870E (880, a 0.1% edge). The Atom C5315 sits near the AMD Athlon PRO 3045B (872, a 0.1% deficit), the Intel Core i7-3540M (867, a 0.5% lead), the Intel Xeon X3460 (866, a 0.5% lead), and the Intel Core i3-5157U (877, a 0.7% deficit). These rival clusters reinforce that both chips are entry-level performers, but the i3-1000NG4 consistently outranks the Atom within that tier.

Where Each One Wins

The data shows a clean sweep for the Intel Core i3-1000NG4 across all tested workloads, but the use-case split is more nuanced than a simple victory count. The i3-1000NG4 wins all five recorded benchmarks, but the Atom C5315 is not without its own merits in different deployment scenarios. The i3-1000NG4's multicore advantage, ranging from 18% to 18.1% across R15, R20, and R23, makes it the clear choice for rendering tasks, video encoding, and any threaded productivity workload. Its single-core edge, between 18.2% and 18.8%, extends that advantage to lightly threaded applications like web browsing, office suites, and older games that rely on one or two fast cores.

The Atom C5315, despite losing every benchmark, brings different strengths to the table. It is a server and workstation part with 4 cores and 4 threads, matching the i3-1000NG4's thread count while offering double the physical cores. This means it can handle more concurrent processes without hyper-threading overhead, even if each core is slower. The Atom also supports ECC memory, a critical feature for data integrity in servers, which the i3-1000NG4 lacks. Its 38.4 GB/s memory bandwidth, a recorded figure, suggests it is optimized for throughput-oriented server tasks, even though the benchmark scores do not reflect an advantage in Cinebench's CPU-bound rendering tests. The i3-1000NG4 is a mobile part with integrated Iris Plus graphics (48EU), making it suitable for compact laptops and fanless designs, while the Atom has no integrated graphics and targets headless server configurations.

For workloads not represented in the Cinebench suite, such as network packet processing, storage controller duties, or always-on server virtualization, the Atom C5315's architecture and feature set may prove more appropriate, even if its raw rendering scores are lower. The data cannot confirm this, but the market segment labels (Mobile versus Server/Workstation) and ECC support point in that direction.

Architecture Differences

The two processors come from fundamentally different Intel design families. The i3-1000NG4 uses the Ice Lake architecture with the Sunny Cove-Y core design, built on Intel's 10 nm process. The Atom C5315 uses the Parker Ridge codename with Tremont cores, also on a 10 nm process, but from the Atom line aimed at low-power servers. The i3-1000NG4 has 2 cores and 4 threads, while the Atom has 4 cores and 4 threads, meaning the i3 relies on hyper-threading to reach its thread count, whereas the Atom uses physical cores only.

Cache hierarchies differ substantially. The i3-1000NG4 provides 80 KB of L1 cache per core, 256 KB of L2 per core, and 4 MB of shared L3 cache. The Atom C5315 offers 64 KB of L1 per core and 4.5 MB of L2 per module, with no L3 cache recorded. This is a significant architectural divergence: the i3 uses a traditional L3 cache to share data between cores, while the Atom relies on larger L2 modules. The i3's die size is 123 mm², a recorded figure, whereas the Atom's die size is not listed in the database.

Clock speeds tell a stark story. The i3-1000NG4 has a base clock of 1100 MHz and a boost clock of 3.20 GHz, allowing it to ramp up dramatically under load. The Atom C5315 has a base clock of 2.40 GHz but no boost clock recorded, meaning it runs at a fixed frequency. This explains the i3's single-core advantage: even though its base clock is lower, it can boost far higher than the Atom's static 2.40 GHz. The i3's TDP is 9 watts, while the Atom draws 38 watts, a substantial difference that reflects the Atom's server-oriented design and higher sustained power envelope.

Memory support is another differentiator. Both support DDR4 and dual-channel memory, but the Atom records a memory bandwidth of 38.4 GB/s, while the i3's bandwidth is not listed. ECC memory is supported only on the Atom, which is a defining feature for server reliability. PCIe connectivity also differs: the i3 uses Gen 3, while the Atom uses Gen 3 with 8 lanes (CPU only). The i3 integrates Iris Plus graphics with 48 execution units, while the Atom has no integrated graphics at all. The i3 uses the Intel BGA 1044 socket, the Atom uses Intel BGA 2106, and they are from different generations: the i3 dates to March 2020, the Atom to June 2022.

The Verdict

From the recorded data, the Intel Core i3-1000NG4 is the superior processor for any benchmarked workload. It wins all five head-to-head tests with margins between 18% and 18.8%, and it does so while consuming only 9 watts compared to the Atom's 38 watts. This makes the i3-1000NG4 the obvious choice for general computing, rendering, and single-threaded tasks, especially in mobile or low-power environments where its efficiency is a decisive factor. Its integrated Iris Plus graphics add further value for systems that need display output without a discrete GPU.

The Intel Atom C5315, however, targets a different market segment entirely. As a server and workstation part with ECC memory support, dual-channel DDR4, and a 38.4 GB/s memory bandwidth, it is built for reliability and throughput in always-on environments. Its 4 physical cores, even at a fixed 2.40 GHz, can handle parallel workloads without hyper-threading dependencies. The data does not show the Atom winning any benchmark, but the database's percentile ranking places it at 23, the same as the i3-1000NG4, indicating they belong to the same overall performance class. Users needing ECC, server-grade connectivity, or a fixed clock for predictable latency should consider the Atom. Users prioritizing raw speed, efficiency, or graphics output should choose the i3-1000NG4. The data supports the i3 for almost every measured scenario, but the Atom's feature set carves out a niche that benchmark scores alone cannot capture.

FAQ

Q: Which processor has a higher single-core score in Cinebench R23?

A: The Intel Core i3-1000NG4 scores 422, while the Intel Atom C5315 scores 357, giving the i3 an 18.2% advantage.

Q: Does the Intel Atom C5315 support ECC memory?

A: Yes, the Atom C5315 supports ECC memory, while the Intel Core i3-1000NG4 does not.

Q: What are the TDP ratings for these two chips?

A: The Intel Core i3-1000NG4 has a TDP of 9 watts, while the Intel Atom C5315 has a TDP of 38 watts.

Q: How many cores and threads does each processor have?

A: The Intel Core i3-1000NG4 has 2 cores and 4 threads, while the Intel Atom C5315 has 4 cores and 4 threads.

Q: Which processor has integrated graphics?

A: The Intel Core i3-1000NG4 includes Iris Plus graphics with 48 execution units, while the Intel Atom C5315 has no integrated graphics.

Q: What is the average benchmark score for each chip?

A: The Intel Core i3-1000NG4 has an average benchmark score of 881, and the Intel Atom C5315 has an average benchmark score of 871.

Specification Differences

| Specification | Intel Core i3-1000NG4 | Intel Atom C5315 |

|---|---|---|

| Cores | 2 | 4 |

| Threads | 4 | 4 |

| Base Clock | 1100 MHz | 2.40 GHz |

| Boost Clock | 3.20 GHz | None |

| TDP | 9 W | 38 W |

| Socket | Intel BGA 1044 | Intel BGA 2106 |

| Architecture | Ice Lake (Sunny Cove-Y) | Parker Ridge (Tremont) |

| Process Node | 10 nm | 10 nm |

| Die Size | 123 mm² | Not recorded |

| L1 Cache | 80 KB (per core) | 64 KB (per core) |

| L2 Cache | 256 KB (per core) | 4.5 MB (per module) |

| L3 Cache | 4 MB (shared) | None |

| Memory Bandwidth | Not recorded | 38.4 GB/s |

| ECC Memory | No | Yes |

| PCIe | Gen 3 | Gen 3, 8 Lanes (CPU only) |

| Integrated Graphics | Iris Plus (48EU) | N/A |

| Market Segment | Mobile | Server/Workstation |

| Production Status | End-of-life | Active |

| Release Date | 2020-03-17 | 2022-06-05 |

| Launch MSRP | None | $213 |

| Part Number | SRGM9 | SRL3Y |