CPU Comparison

AMD Ryzen 7 4800U and Intel Atom P5342 sit at essentially identical average benchmark scores, 3218 versus 3217, a 0% delta, yet they achieve that parity through completely opposite design philosophies. The Ryzen 7 4800U is a mobile processor built around eight Zen 2 cores with simultaneous multithreading, while the Atom P5342 is a server/workstation chip with sixteen Tremont cores that do not support hyper-threading. The data shows a split decision: the AMD part wins older Cinebench R15 tests, while the Intel part wins Cinebench R23 tests. This makes the choice entirely dependent on workload and platform requirements.

Where Each One Wins

The AMD Ryzen 7 4800U dominates in Cinebench R15 workloads. In the multi-core test, it scores 1411 against the Atom P5342's 1121, a 25.9% advantage. The single-core R15 result follows the same pattern: 183 versus 158, a 15.8% lead for AMD. These are substantial margins, particularly the multi-core delta, which suggests the Ryzen's eight cores with 16 threads are more efficient at extracting performance from the R15 benchmark's threading model. The R15 test appears to favor the AMD architecture's higher per-thread throughput and its ability to utilize two threads per core.

The Intel Atom P5342 flips the script in Cinebench R23. It scores 11122 in multi-core compared to the Ryzen's 8376, a 24.7% advantage for Intel. The single-core R23 test also goes Intel's way: 1570 versus 1235, a 21.3% lead. This is a dramatic reversal from the R15 results. The R23 workload is more demanding and scales differently, and here the Atom's sixteen physical cores provide a raw throughput advantage that outweighs the Ryzen's SMT capability. The single-core R23 win for Intel is notable because the Atom has a 2.20 GHz base clock with no boost clock listed, whereas the Ryzen boosts to 4.20 GHz. Despite the clock disadvantage, the Atom's newer Tremont core design delivers higher single-thread R23 performance.

The overall win count is even at two wins each. The AMD part wins both R15 tests; the Intel part wins both R23 tests. This is a clean split that maps to different benchmark generations and workload characteristics. Users running legacy applications or workloads similar to R15 should favor AMD. Users running modern, heavily threaded workloads similar to R23 should favor Intel.

Architecture Differences

The fundamental architectural split begins with the process node. The AMD Ryzen 7 4800U is built on TSMC's 7 nm process with 9,800 million transistors on a 156 mm² die. The Intel Atom P5342 uses Intel's 10 nm process; transistor count and die size are not listed in the data. The node difference explains part of the power envelope disparity: the Ryzen has a 15 W TDP, while the Atom consumes 71 W.

Core counts and threading differ significantly. The Ryzen has 8 cores and 16 threads, indicating simultaneous multithreading. The Atom has 16 cores and 16 threads, meaning each core handles exactly one thread. The Atom's core count advantage is offset by its lack of SMT. Cache hierarchies also diverge. Both have 64 KB L1 per core. The Ryzen has 512 KB L2 per core and 8 MB shared L3. The Atom has 4.5 MB L2 per module and no L3 cache listed.

Memory support differs. The Ryzen supports DDR4 and LPDDR4 in dual-channel configuration with 51.2 GB/s bandwidth and no ECC. The Atom supports only DDR4, also dual-channel, with 42.7 GB/s bandwidth and ECC enabled. The Ryzen has integrated Radeon RX Vega 8 graphics; the Atom has no integrated graphics. PCIe is Gen 3 for both, but the Atom lists 16 lanes (CPU only), while the Ryzen does not specify lane count.

Platform and market positioning are starkly different. The Ryzen uses AMD Socket FP6, is classified as Mobile, and was released in January 2020. The Atom uses Intel BGA 2106, is classified as Server/Workstation, and was released in June 2022. The Atom's launch MSRP is $708. The Ryzen has no launch MSRP listed. The Ryzen is part of the 4000 series with the Renoir codename and Zen 2 architecture. The Atom uses the Snow Ridge codename and Tremont generation.

FAQ

Q: Which processor has more cores?

A: The Intel Atom P5342 has 16 cores, double the Ryzen 7 4800U's 8 cores. However, the Ryzen has 16 threads due to SMT, while the Atom also has 16 threads (one per core).

Q: Why does the Intel Atom win R23 but lose R15?

A: The R23 multi-core test shows Intel at 11122 versus AMD's 8376, a 24.7% Intel advantage. In R15 multi-core, AMD leads 1411 to 1121, a 25.9% advantage. The R23 workload appears to scale better with the Atom's sixteen physical cores, while R15 favors the Ryzen's SMT design and per-core efficiency.

Q: Does the Intel Atom support error-correcting memory?

A: Yes, the Atom P5342 supports ECC memory. The Ryzen 7 4800U does not have ECC support. This is a critical differentiator for server and workstation reliability requirements.

Q: What is the power consumption difference?

A: The Ryzen 7 4800U has a 15 W TDP, while the Intel Atom P5342 has a 71 W TDP. The Atom consumes nearly five times the power budget, consistent with its server/workstation classification.

Q: Which processor has integrated graphics?

A: Only the AMD Ryzen 7 4800U has integrated graphics, specifically Radeon RX Vega 8. The Intel Atom P5342 has no integrated graphics, requiring a discrete GPU for display output.

Q: How close are their average benchmark scores?

A: The Ryzen's average benchmark score is 3218, and the Atom's is 3217, a 0% delta. Both rank at the 53rd percentile among all CPUs, placing them in identical overall performance tiers.

Specification Differences

| Specification | AMD Ryzen 7 4800U | Intel Atom P5342 |

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

| Cores | 8 | 16 |

| Threads | 16 | 16 |

| Base Clock | 1800 MHz | 2200 MHz |

| Boost Clock | 4200 MHz | Not listed |

| TDP | 15 W | 71 W |

| Socket | AMD Socket FP6 | Intel BGA 2106 |

| Architecture | Zen 2 | Not listed |

| Codename | Renoir | Snow Ridge |

| Generation | Ryzen 7 (Zen 2 Renoir) | Atom (Tremont) |

| Process Node | 7 nm (TSMC) | 10 nm (Intel) |

| Transistors | 9,800 million | Not listed |

| Die Size | 156 mm² | Not listed |

| L2 Cache | 512 KB (per core) | 4.5 MB (per module) |

| L3 Cache | 8 MB (shared) | Not listed |

| Memory Support | DDR4, LPDDR4 | DDR4 |

| Memory Bandwidth | 51.2 GB/s | 42.7 GB/s |

| ECC Memory | No | Yes |

| Integrated Graphics | Radeon RX Vega 8 | N/A |

| Market Segment | Mobile | Server/Workstation |

| Release Date | 2020-01-05 | 2022-06-05 |

| Launch MSRP | Not listed | $708 |

| Part Number | 100-000000082 | SRL3T |

Head-to-Head Benchmarks

The R15 multi-core test delivers the largest win for the AMD Ryzen 7 4800U. The AMD part scores 1411 against the Intel Atom's 1121, producing a 25.9% delta. This is the single biggest margin in either direction. The Ryzen's 16 threads clearly outpace the Atom's 16 single-threaded cores in this older benchmark. The R15 single-core result reinforces AMD's strength: 183 versus 158, a 15.8% advantage. Both R15 tests favor AMD by double-digit margins, indicating the Zen 2 design has a meaningful efficiency edge in this workload generation.

The Cinebench R23 results reverse the outcome entirely. The Intel Atom P5342 scores 11122 in multi-core, against the Ryzen's 8376, a 24.7% Intel advantage. This is nearly identical in magnitude to AMD's R15 multi-core win, just in the opposite direction. The R23 single-core test also goes Intel's way: 1570 versus 1235, a 21.3% delta. The Intel core's higher base clock of 2.20 GHz, combined with the Tremont architecture's improvements, produces better single-thread R23 performance despite the Ryzen's 4.20 GHz boost capability.

The pattern is remarkably symmetrical. AMD wins R15 by 25.9% and 15.8%; Intel wins R23 by 24.7% and 21.3%. The average benchmark scores confirm the parity: 3218 for AMD, 3217 for Intel. Both processors rank at the 53rd percentile. The nearest rivals for both include the AMD Ryzen 3 PRO 5350GE at 3218 (0% delta) and the Intel Core i5-1240P at 3202 (0.5% delta), indicating both chips sit in a tightly clustered performance band.

The Verdict

The data supports a clear workload-based recommendation. Choose the AMD Ryzen 7 4800U if the priority is energy efficiency and legacy benchmark performance. Its 15 W TDP is dramatically lower than the Atom's 71 W, making it suitable for mobile platforms. It wins both R15 tests with margins of 25.9% and 15.8%, and its integrated Radeon RX Vega 8 graphics eliminate the need for a discrete GPU. The Ryzen also offers higher memory bandwidth at 51.2 GB/s, though it lacks ECC support.

Choose the Intel Atom P5342 for modern multi-threaded server or workstation workloads where ECC memory and raw core count matter more than power efficiency. It wins both R23 tests with margins of 24.7% and 21.3%, demonstrating superior performance in the more demanding modern benchmark. The Atom's sixteen physical cores provide the throughput needed for heavily parallel workloads, and its ECC memory support is a non-negotiable feature for data integrity in server environments. The trade-off is substantial: 71 W TDP, no integrated graphics, and a $708 launch MSRP.

For users who cannot choose based on workload generation, the average scores indicate these are essentially equivalent processors. The 1-point difference in average benchmark score (3218 versus 3217) is statistically negligible, and both rank at the 53rd percentile. The decision ultimately comes down to platform requirements: mobile efficiency and integrated graphics versus server reliability and raw core count. Neither processor is universally superior; each wins precisely where its design strengths lie.