AMD Ryzen 3 4300G vs Intel Xeon 6756E Comparison

The AMD Ryzen 3 4300G and Intel Xeon 6756E occupy opposite ends of the computing spectrum, yet benchmark results reveal a surprisingly nuanced head-to-head. The Ryzen 3 4300G is a 4-core desktop part built for everyday responsiveness, while the Xeon 6756E is a 128-core server behemoth designed for massive parallel workloads. The data shows the Xeon wins the majority of tests (13 vs 4), but the Ryzen’s victories are decisive in specific single-threaded and instruction-heavy tasks, making the choice entirely dependent on workload.

Where Each One Wins

The Intel Xeon 6756E dominates in raw throughput-heavy scenarios. Across all Cinebench variants—R15, R20, and R23—the Xeon leads by a consistent 13.7-13.8% in both single-core and multi-core tests. This consistency suggests a fundamental architectural advantage in instruction execution efficiency rather than core count alone. In PassMark’s floating-point math, the Xeon scores 22451 versus 17577, a 21.7% advantage, indicating superior mathematical computation capabilities. The Xeon also wins heavily in prime number finding (133 vs 20, an 85% lead), physics simulation (1463 vs 454, a 69% lead), and multithreaded workloads (11445 vs 9849, a 13.9% lead). Data encryption also favors the Xeon, albeit narrowly at 8409 vs 8176 (2.8% lead).

The AMD Ryzen 3 4300G wins where single-core speed and specific instruction efficiency matter. Its most striking victory is in PassMark single-thread performance: 2425 vs 1646, a massive 47.3% lead. This is a huge margin that speaks to the Ryzen’s high boost clock of 4.00 GHz versus the Xeon’s 2.60 GHz. The Ryzen also crushes the Xeon in extended instructions (9148 vs 6596, a 38.7% lead) and data compression (137681 vs 123443, an 11.5% lead). These wins suggest the Ryzen is better suited for tasks that rely on single-core responsiveness, such as general desktop navigation, application launching, and lightweight scripting that doesn’t scale across many cores.

Architecture Differences

The two processors are built on fundamentally different philosophies. The AMD Ryzen 3 4300G uses the Zen 2 architecture on a 7 nm TSMC process, with 4 cores and 8 threads. Its cache layout is per-core: 64 KB L1 and 512 KB L2 per core, with a shared 4 MB L3. This is a classic desktop design optimized for low latency and high clock speeds. The Xeon 6756E uses Intel’s Sierra Forest architecture on a 5 nm Intel process, featuring 128 cores but only 128 threads—meaning no simultaneous multithreading. Its cache is organized differently: 96 KB L1 per core, 4 MB L2 per module, and a massive shared 96 MB L3. The Xeon’s die is 578 mm² compared to the Ryzen’s 156 mm², highlighting the scale difference.

Memory support reinforces the divide. The Ryzen uses dual-channel DDR4 with 51.2 GB/s bandwidth, while the Xeon uses eight-channel DDR5 with 409.6 GB/s bandwidth—an eightfold increase in memory throughput. The Xeon supports ECC memory; the Ryzen does not. PCIe connectivity also differs drastically: the Ryzen offers Gen 3 with 16 lanes, while the Xeon provides Gen 5 with 88 lanes. The Ryzen includes integrated Radeon Vega 6 graphics, whereas the Xeon has no integrated graphics. The Ryzen has an unlocked multiplier, the Xeon is locked. The Ryzen fits AMD Socket AM4, the Xeon uses Intel Socket 4710.

The Verdict

Pick the AMD Ryzen 3 4300G if your priorities are single-threaded performance, integrated graphics, and low power consumption (65W TDP). The data shows it is 47.3% faster in single-thread PassMark tests, making it superior for everyday desktop tasks, legacy software, and anything that runs primarily on one or two cores. Its 4 MB L3 cache and 4.00 GHz boost clock are well-suited for responsive computing. The 4300G also wins in data compression and extended instructions, making it useful for file archiving and workloads that leverage specific CPU instruction sets.

Pick the Intel Xeon 6756E if you need massive parallel throughput, enormous memory bandwidth, or ECC reliability. Its 128 cores and 96 MB shared L3 cache, combined with eight-channel DDR5 at 409.6 GB/s, make it ideal for server virtualization, scientific simulation, and database processing. The Xeon wins all Cinebench tests by ~13.8%, plus floating-point math, physics simulation, and prime number finding by wide margins. Its 225W TDP and $8428 launch MSRP reflect its enterprise positioning. The trade-off is clear: the Xeon’s single-thread score (1646) is far below the Ryzen’s (2425), so it is not a desktop-friendly choice.

FAQ

Q: Which CPU is faster in single-core performance?

A: The AMD Ryzen 3 4300G is significantly faster, scoring 2425 in PassMark single-thread versus the Intel Xeon 6756E’s 1646, a 47.3% advantage. This aligns with its higher boost clock of 4.00 GHz vs 2.60 GHz.

Q: Does the Xeon 6756E support ECC memory?

A: Yes, the Intel Xeon 6756E supports ECC memory and uses eight-channel DDR5 with 409.6 GB/s bandwidth. The AMD Ryzen 3 4300G does not support ECC and uses dual-channel DDR4 at 51.2 GB/s.

Q: Which CPU has integrated graphics?

A: The AMD Ryzen 3 4300G includes Radeon Vega 6 integrated graphics, while the Intel Xeon 6756E has no integrated graphics (N/A). This makes the Ryzen a self-contained desktop solution.

Q: What is the core and thread count difference?

A: The AMD Ryzen 3 4300G has 4 cores and 8 threads. The Intel Xeon 6756E has 128 cores and 128 threads, meaning no hyperthreading on the Xeon.

Q: How do they compare in Cinebench R23?

A: The Intel Xeon 6756E wins both tests: 9728 multi-core vs 8387, and 1373 single-core vs 1184. The Xeon leads by 13.8% in both, showing a consistent advantage even in single-core execution.

Q: Which CPU is better for data compression?

A: The AMD Ryzen 3 4300G wins in PassMark data compression with a score of 137681 versus 123443, an 11.5% lead, despite the Xeon’s massive core count.

Head-to-Head Benchmarks

The biggest win for the AMD Ryzen 3 4300G is in PassMark single-thread performance, where it scores 2425 versus the Xeon’s 1646—a 47.3% delta. This is a decisive victory that highlights the Ryzen’s high clock speed advantage. The Ryzen also wins extended instructions by a wide margin (9148 vs 6596, a 38.7% lead) and data compression (137681 vs 123443, an 11.5% lead). These are not marginal wins; they indicate the Ryzen’s architecture is far more efficient for certain instruction types and single-threaded data handling.

The Intel Xeon 6756E’s largest win is in PassMark find prime numbers, scoring 133 versus the Ryzen’s 20—an 85% lead. This is followed by physics simulation (1463 vs 454, a 69% lead) and floating-point math (22451 vs 17577, a 21.7% lead). In all three Cinebench tests (R15, R20, R23), the Xeon wins by a consistent 13.7-13.8% in both single and multi-core variants. The Xeon also edges out the Ryzen in integer math (30806 vs 29737, a 3.5% lead), data encryption (8409 vs 8176, a 2.8% lead), multithread (11445 vs 9849, a 13.9% lead), and random string sorting (15847 vs 14503, an 8.5% lead). The Xeon’s wins are broad but not always overwhelming; the Ryzen’s wins are fewer but dramatically larger in percentage terms.

Specification Differences

| Specification | AMD Ryzen 3 4300G | Intel Xeon 6756E |

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

| Cores | 4 | 128 |

| Threads | 8 | 128 |

| Base Clock | 3.80 GHz | 1.80 GHz |

| Boost Clock | 4.00 GHz | 2.60 GHz |

| TDP | 65 W | 225 W |

| Socket | AMD Socket AM4 | Intel Socket 4710 |

| Architecture | Zen 2 | Sierra Forest |

| Process Node | 7 nm | 5 nm |

| L1 Cache | 64 KB (per core) | 96 KB (per core) |

| L2 Cache | 512 KB (per core) | 4 MB (per module) |

| L3 Cache | 4 MB (shared) | 96 MB (shared) |

| Memory Support | DDR4 | DDR5 |

| Memory Bus | Dual-channel | Eight-channel |

| Memory Bandwidth | 51.2 GB/s | 409.6 GB/s |

| ECC Memory | No | Yes |

| PCIe | Gen 3, 16 Lanes | Gen 5, 88 Lanes |

| Integrated Graphics | Radeon Vega 6 | N/A |

| Market Segment | Desktop | Server/Workstation |

| Production Status | Active | Active |

| Release Date | 2020-07-20 | 2024-06-02 |

| Launch MSRP | null | $8428 |

| Multiplier Unlocked | Yes | No |

| Part Number | 100-000000144 | SRPFX |