AMD Ryzen 3 2300X vs Intel Xeon E3-1245 v5 Comparison

The Intel Xeon E3-1245 v5 and AMD Ryzen 3 2300X are both quad-core processors, yet they represent fundamentally different design philosophies and market intents. The Xeon is a Skylake-era server/workstation part from 2015, while the Ryzen 3 is a 2018 Zen+ desktop chip. Benchmark data shows a consistent, though narrow, performance edge for the older Intel part across all tested Cinebench workloads, despite the AMD chip's higher boost clock and more modern process node. The average benchmark scores are nearly identical—1973 for the Xeon versus 1968 for the Ryzen—placing both firmly in the 44th percentile of all CPUs, with the delta between them at a razor-thin 0.2%.

FAQ

Q: Which processor has a higher average benchmark score?

A: The Intel Xeon E3-1245 v5 has an average benchmark score of 1973, while the AMD Ryzen 3 2300X scores 1968. The difference is a mere 0.2%, making them statistically equivalent in overall performance.

Q: Are there any benchmarks where the AMD Ryzen 3 2300X wins?

A: No. In the head-to-head comparison, the Intel Xeon E3-1245 v5 wins all six Cinebench tests (R15, R20, and R23, both single-core and multi-core variants). The Ryzen 3 2300X has zero wins in this matchup.

Q: What is the largest performance margin between the two?

A: The largest margin is 6.0%, achieved in the Cinebench R20 single-core test, where the Xeon scores 404 against the Ryzen's 381. All other deltas are between 5.5% and 5.9%.

Q: How does the thread count differ between these two CPUs?

A: The Intel Xeon E3-1245 v5 supports 8 threads via Hyper-Threading on its 4 cores. The AMD Ryzen 3 2300X is a pure 4-core, 4-thread processor without SMT.

Q: What is the difference in their power envelopes?

A: The Xeon has a TDP of 80 watts, which is 15 watts higher than the Ryzen 3's 65-watt TDP. This is notable given the Ryzen's smaller manufacturing node.

Q: Which processor has a higher boost clock?

A: The AMD Ryzen 3 2300X boosts to 4.00 GHz, which is 0.10 GHz higher than the Intel Xeon E3-1245 v5's 3.90 GHz boost clock. Both have the same 3.50 GHz base clock.

Architecture Differences

The two chips diverge sharply at the architectural level. The Intel Xeon E3-1245 v5 is built on Intel's Skylake architecture, produced on a 14 nm process at Intel's own foundries. It packs 1,750 million transistors into a 122 mm² die. The AMD Ryzen 3 2300X, in contrast, uses the Zen architecture (specifically Zen+ Pinnacle Ridge), fabricated by GlobalFoundries on a smaller 12 nm process. Its die is significantly larger at 213 mm², and it contains 4,800 million transistors—a figure that reflects the different design priorities, particularly the inclusion of a larger integrated memory controller and other I/O.

The cache hierarchies are also distinct. The Intel part has a per-core L1 cache of 64 KB and a per-core L2 of 256 KB, with a shared 8 MB L3 cache. The AMD chip counters with a larger per-core L1 of 96 KB and a per-core L2 of 512 KB, but its shared L3 cache is halved to just 4 MB. This means the Xeon has twice the total L3 capacity, which can be advantageous for workloads with larger working sets.

Memory support reveals a major philosophical split. The Xeon supports both DDR3 and DDR4 memory in a dual-channel configuration, with a listed memory bandwidth of 34.1 GB/s. The Ryzen 3 2300X supports only DDR4, also dual-channel, but with a substantially higher theoretical bandwidth of 46.9 GB/s. Critically, the Xeon supports ECC memory, making it suitable for error-sensitive server tasks, while the Ryzen 3 does not. The Intel part also includes integrated HD Graphics P530, whereas the AMD chip has no integrated graphics at all, requiring a discrete GPU for any display output.

Another key difference lies in their market positioning and lifecycle. The Xeon is an end-of-life part aimed at the server/workstation segment, with a launch MSRP of $294. The Ryzen 3 is an active desktop part with a multiplier unlocked for overclocking, while the Xeon's multiplier is locked. Their sockets are incompatible: the Xeon uses Intel Socket 1151, and the Ryzen uses AMD Socket AM4.

Head-to-Head Benchmarks

The benchmark data presents a remarkably consistent picture. Across all six Cinebench tests, the Intel Xeon E3-1245 v5 wins by a margin that never dips below 5.5%. In Cinebench R15, the Xeon scores 687 in multi-core against the Ryzen's 649, a 5.9% advantage. Its single-core score of 96 beats the Ryzen's 91 by 5.5%. This pattern repeats in Cinebench R20, where the Xeon's multi-core score of 2865 surpasses 2706 by 5.9%, and its single-core score of 404 surpasses 381 by 6.0%. The Cinebench R23 results show a 5.9% delta in multi-core (6822 versus 6443) and another 5.9% delta in single-core (963 versus 909).

What makes these results intriguing is the context. The Ryzen 3 2300X has a higher boost clock (4.00 GHz versus 3.90 GHz), a more modern 12 nm process, and significantly higher memory bandwidth (46.9 GB/s versus 34.1 GB/s). Intel's Skylake core architecture, despite being older and on a larger process node, still manages to extract a consistent performance lead. The Xeon's 8 threads versus the Ryzen's 4 threads likely explain part of the multi-core advantage, but the single-core wins—where thread count is irrelevant—suggest that Intel's older core design has a higher per-clock instruction throughput in these workloads. The Xeon's larger 8 MB L3 cache may also contribute to its edge, even in single-threaded tasks that can benefit from a larger working set.

Notably, the Ryzen 3 2300X has an additional Geekbench test result in its profile, scoring 3351 in multi-core and 1216 in single-core. The Intel Xeon E3-1245 v5 does not have a corresponding Geekbench entry in the provided data, so a direct comparison on that workload is not possible. This absence of data is itself a data point—it suggests the benchmark coverage for these two CPUs is not perfectly symmetrical.

The Verdict

The data is unambiguous: the Intel Xeon E3-1245 v5 is the faster processor in every benchmark where both were tested. The consistent 5.9% to 6.0% margins across all Cinebench versions indicate a structural performance advantage rather than a workload-specific quirk. This is surprising for a chip released roughly three years earlier and built on a larger process node.

However, the verdict is not solely about raw performance. The Ryzen 3 2300X is an active desktop part with an unlocked multiplier, making it a candidate for overclocking and system tuning. The Xeon is end-of-life and locked. The Ryzen also has a substantially higher memory bandwidth and a lower TDP of 65 watts versus 80 watts. For a user building a new system today, the Ryzen offers a modern platform (AM4) with ongoing support potential. For a user seeking maximum compute performance in a workstation or server context, particularly where ECC memory is a requirement, the Xeon is the clear choice from a pure throughput standpoint.

Given the near-identical average scores (1973 versus 1968) and matching 44th percentile ranking, the performance difference is narrow in absolute terms. The Xeon wins on execution speed; the Ryzen wins on efficiency, modern features, and platform longevity.

Specification Differences

The following table highlights only the fields where the two processors differ, based on the provided data:

| Specification | Intel Xeon E3-1245 v5 | AMD Ryzen 3 2300X |

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

| Manufacturer | Intel | AMD |

| Threads | 8 | 4 |

| Boost Clock | 3.90 GHz | 4.00 GHz |

| TDP | 80 W | 65 W |

| Socket | Intel Socket 1151 | AMD Socket AM4 |

| Architecture | Skylake | Zen (Zen+) |

| Process Node | 14 nm | 12 nm |

| Foundry | Intel | GlobalFoundries |

| Transistors | 1,750 million | 4,800 million |

| Die Size | 122 mm² | 213 mm² |

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

| L2 Cache | 256 KB (per core) | 512 KB (per core) |

| L3 Cache | 8 MB (shared) | 4 MB (shared) |

| Memory Support | DDR3, DDR4 | DDR4 |

| Memory Bandwidth | 34.1 GB/s | 46.9 GB/s |

| ECC Memory | Yes | No |

| Integrated Graphics | HD Graphics P530 | None |

| Market Segment | Server/Workstation | Desktop |

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

| Release Date | 2015-10-18 | 2018-09-09 |

| Launch MSRP | $294 | Not provided |

| Multiplier Unlocked | No | Yes |

| Part Number | SR2LL | YD230XBBM4KAFYD230XBBAFMPK |

Where Each One Wins

Intel Xeon E3-1245 v5 wins on raw compute performance. In every single Cinebench test—R15, R20, and R23, both single-core and multi-core—the Xeon outperforms the Ryzen 3 2300X by margins between 5.5% and 6.0%. This makes it the superior choice for multithreaded rendering, video encoding, and any CPU-bound workstation task where Cinebench-like workloads are representative. Its support for ECC memory further cements its position for server and data-integrity applications. The Xeon's 8 threads give it a structural advantage in heavily parallel workloads, a fact reflected in the consistent multi-core wins.

AMD Ryzen 3 2300X wins on efficiency and platform attributes. The Ryzen operates at a lower 65-watt TDP, a 15-watt reduction that suggests better power efficiency despite its larger 213 mm² die. Its memory bandwidth advantage is substantial—46.9 GB/s versus 34.1 GB/s—which could benefit memory-intensive applications that are not well-represented by Cinebench scores. The unlocked multiplier makes it a more flexible platform for enthusiasts, and its active production status means it remains a viable new purchase. The Ryzen also has a 0.10 GHz higher boost clock, though this did not translate into benchmark wins. As an active desktop part on the AM4 socket, it offers a more modern upgrade path than the end-of-life Xeon. For a user who prioritizes a current platform, lower power draw, and the ability to overclock over the modest 6% performance deficit, the Ryzen 3 2300X is the logical pick.