AMD Athlon X4 830 vs Intel Atom C5315 Comparison

Where Each One Wins

The recorded benchmark data shows a decisive overall result: the Intel Atom C5315 wins all five head-to-head comparisons, while the AMD Athlon X4 830 does not take a single recorded victory. This does not mean the Athlon is without purpose; rather, it indicates that the two processors occupy different segments with distinct priorities, even if their raw multi-threaded scores are close.

The Athlon X4 830 is a desktop part built for the AMD Socket FM2+ platform, with an unlocked multiplier and a 65 W TDP. It targets systems where user overclocking and legacy platform compatibility matter more than absolute efficiency. Its benchmark scores place it at the 23rd percentile among all CPUs, with an average benchmark score of 848. The nearest rivals in the database include the Intel Xeon X5492 (avg score 852, delta -0.4%), the Intel Core i5-5250U (avg score 856, delta -0.9%), and the AMD FX-8800P (avg score 843, delta 0.6%). This places the Athlon in a cluster of mid-2010s-era processors, where it holds its own but does not stand out.

The Intel Atom C5315, on the other hand, is an active server/workstation part from the Parker Ridge codename, built on the 10 nm process. It has a 38 W TDP, a BGA 2106 socket, and supports ECC memory, which makes it suitable for low-power, always-on server workloads where reliability and thermal efficiency are critical. Its average benchmark score is 871, with the same 23rd percentile ranking. Its nearest rivals include the AMD Athlon PRO 3045B (avg score 872, delta -0.1%), the Intel Core i3-5157U (avg score 877, delta -0.7%), and the Intel Xeon X3460 (avg score 866, delta 0.5%). The Atom is essentially neck-and-neck with these parts, meaning it is not a performance outlier but rather a consistent, predictable performer.

The use-case split is clear: the Athlon X4 830 wins on platform flexibility (unlocked multiplier, FM2+ socket) and desktop-oriented features, while the Atom C5315 wins on efficiency (lower TDP), server features (ECC, active production status), and every single benchmark test. If the workload is traditional desktop computing with overclocking, the Athlon is the choice; if the workload is a low-power server or workstation requiring ECC and sustained operation, the Atom is the better fit.

Architecture Differences

The two processors come from fundamentally different design philosophies. The AMD Athlon X4 830 is based on the Steamroller architecture, codenamed Kaveri, and is manufactured on a 28 nm process at GlobalFoundries. It uses 2,411 million transistors on a 245 mm² die. The cache layout includes 256 KB of L1 and 4 MB of L2, with no L3 cache. It supports dual-channel DDR3 memory with a theoretical bandwidth of 34.1 GB/s, and it does not support ECC memory. The integrated graphics field is null, meaning the database records no integrated GPU for this part. It provides PCIe Gen 3 with 16 lanes (CPU only) and has an unlocked multiplier, part number AD830XYBI44JA.

The Intel Atom C5315, in contrast, is built on a 10 nm process at Intel, using the Tremont core generation under the Parker Ridge codename. It has 64 KB of L1 per core and 4.5 MB of L2 per module, with no L3 cache. It supports dual-channel DDR4 memory with a bandwidth of 38.4 GB/s, and it does support ECC memory. Its integrated graphics are listed as "N/A", meaning no graphics are included. It provides PCIe Gen 3 with 8 lanes (CPU only). The multiplier is locked, and the part number is SRL3Y. The production status is active, with a release date of 2022-06-05.

The most significant architectural differences are the process node (28 nm vs 10 nm), memory type (DDR3 vs DDR4), ECC support (absent vs present), and the cache structure (a flat 4 MB L2 vs a per-module 4.5 MB L2). The Atom also has a lower TDP (38 W vs 65 W), which is a direct consequence of the smaller process node and the efficiency-focused Atom microarchitecture. The Athlon's 28 nm process and desktop heritage explain its higher power draw and larger die size.

Head-to-Head Benchmarks

All five recorded Cinebench tests show the Intel Atom C5315 ahead, but the margins are consistently narrow. The largest relative difference is in Cinebench R20 single-core, where the Atom scores 149 against the Athlon's 146, a delta of -2%. The smallest relative difference is the same test, actually, as all deltas fall between -2% and -2.7%. Let us walk through each test.

In Cinebench R15 multi-core, the Atom scores 255 and the Athlon scores 248, a delta of -2.7%. That is a 7-point gap, which translates to roughly a 2.8% advantage for the Atom. In Cinebench R20 multi-core, the Atom scores 1063 against 1035, a delta of -2.6%, or a 28-point gap. In Cinebench R20 single-core, the Atom scores 149 against 146, a delta of -2%, a 3-point gap. In Cinebench R23 multi-core, the Atom scores 2533 against 2465, a delta of -2.7%, a 68-point gap. In Cinebench R23 single-core, the Atom scores 357 against 348, a delta of -2.5%, a 9-point gap.

The pattern is remarkably consistent: the Atom leads by roughly 2 to 3 percent across both single-core and multi-core tests. This suggests a uniform per-clock efficiency advantage, likely stemming from the newer 10 nm process and the Tremont core design, rather than a difference in core count or threading (both have 4 cores and 4 threads). The Athlon's higher base clock of 3.00 GHz (with a 3.40 GHz boost) is not enough to overcome the Atom's 2.40 GHz base clock (no boost), which is telling. The Atom's architectural efficiency more than compensates for its lower clock speed.

If we look at the average benchmark scores, the Atom's 871 is 2.7% higher than the Athlon's 848, which matches the Cinebench deltas. In the context of the nearest rivals, both CPUs sit in a tight band: the Athlon's closest rival is the Intel Xeon X5492 (delta -0.4%), while the Atom's closest rival is the AMD Athlon PRO 3045B (delta -0.1%). This means that swapping between the Athlon and the Atom would produce almost identical results in most real-world workloads, but the Atom wins every recorded test without exception.

FAQ

Q: Which processor has the higher multi-core performance in Cinebench R23?

A: The Intel Atom C5315 scores 2533 in Cinebench R23 multi-core, while the AMD Athlon X4 830 scores 2465. The Atom leads by 2.7%.

Q: Does the AMD Athlon X4 830 support ECC memory?

A: No. The database records ECC memory support as false for the Athlon X4 830. The Intel Atom C5315, in contrast, does support ECC memory.

Q: What are the TDP differences between the two?

A: The AMD Athlon X4 830 has a TDP of 65 W, while the Intel Atom C5315 has a TDP of 38 W. The Atom consumes significantly less power.

Q: Are there any benchmark tests where the AMD Athlon X4 830 wins?

A: No. In the five recorded head-to-head Cinebench tests (R15 multi-core, R20 multi-core, R20 single-core, R23 multi-core, R23 single-core), the Intel Atom C5315 wins all five. The Athlon wins zero.

Q: Which processor has a higher base clock speed?

A: The AMD Athlon X4 830 has a base clock of 3.00 GHz, which is higher than the Intel Atom C5315's base clock of 2.40 GHz. The Athlon also has a boost clock of 3.40 GHz, while the Atom has no recorded boost clock.

Q: What is the production status of each processor?

A: The AMD Athlon X4 830 is end-of-life, while the Intel Atom C5315 is active and was released on 2022-06-05.

Specification Differences

The table below lists only the fields where the two processors differ, based on the recorded data.

| Specification | AMD Athlon X4 830 | Intel Atom C5315 |

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

| Base Clock | 3.00 GHz | 2.40 GHz |

| Boost Clock | 3.40 GHz | None |

| TDP | 65 W | 38 W |

| Socket | AMD Socket FM2+ | Intel BGA 2106 |

| Architecture | Steamroller | Not recorded |

| Codename | Kaveri | Parker Ridge |

| Generation | Athlon (Kaveri) | Atom (Tremont) |

| Process Node | 28 nm | 10 nm |

| Foundry | GlobalFoundries | Intel |

| Transistors | 2,411 million | Not recorded |

| Die Size | 245 mm² | Not recorded |

| L1 Cache | 256 KB | 64 KB (per core) |

| L2 Cache | 4 MB | 4.5 MB (per module) |

| Memory Support | DDR3 | DDR4 |

| Memory Bandwidth | 34.1 GB/s | 38.4 GB/s |

| ECC Memory | false | true |

| PCIe Lanes | 16 (CPU only) | 8 (CPU only) |

| Integrated Graphics | Not recorded | N/A |

| Market Segment | Desktop | Server/Workstation |

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

| Release Date | Not recorded | 2022-06-05 |

| Launch MSRP | Not recorded | $213 |

| Multiplier Unlocked | true | false |

| Part Number | AD830XYBI44JA | SRL3Y |

| Average Benchmark Score | 848 | 871 |

| Percentile | 23 | 23 |

Both processors share 4 cores, 4 threads, dual-channel memory bus, no L3 cache, and PCIe Gen 3 support. The Athlon has a higher clock speed and larger L1 cache, while the Atom has a smaller process node, newer memory standard, ECC support, and a lower TDP. The data shows that the Atom's efficiency advantages translate into a consistent, albeit modest, performance lead across all tested workloads.