Intel Core i3-7100 vs Intel Xeon E5530 Comparison

FAQ

Q: Which processor has more cores and threads?

A: The Intel Xeon E5530 has 4 cores and 8 threads, while the Intel Core i3-7100 has 2 cores and 4 threads. The Xeon also carries a higher average benchmark score of 801 versus 781 for the i3.

Q: How do the two compare in single-core performance?

A: The Xeon E5530 wins all recorded single-core tests, though by narrow margins. In Cinebench R23 single-core, it scores 328 against the i3-7100's 326, a delta of -0.6%. In Cinebench R20 single-core, it scores 137 versus 136, a delta of -0.7%.

Q: What are the process nodes for each chip?

A: The Core i3-7100 uses a 14 nm process, while the Xeon E5530 uses a 45 nm process. The i3 also has a much lower TDP of 51 watts compared to 80 watts for the Xeon.

Q: Which processor supports ECC memory?

A: Only the Intel Xeon E5530 supports ECC memory. The Core i3-7100 does not. The Xeon also supports DDR3 memory over a triple-channel bus, whereas the i3 supports DDR4 over a dual-channel bus.

Q: What is the production status of each processor?

A: The Core i3-7100 is listed as Active in production, while the Xeon E5530 is End-of-life. The i3 was released in January 2017, and the Xeon was released in March 2009.

Q: What do the nearest rival comparisons show for each CPU?

A: The i3-7100's closest rival is the AMD A10-5800K with a delta of 0.4%. The Xeon E5530's nearest rival is the AMD A10-7700K with a delta of 0.0%, meaning they are statistically identical in average score.

Architecture Differences

The two processors come from fundamentally different design eras. The Core i3-7100 is built on the Kaby Lake architecture using a 14 nm process, while the Xeon E5530 is based on the older Nehalem architecture (codename Gainestown) on a 45 nm process. This difference in process node explains much of the efficiency gap: the i3-7100 has a TDP of 51 watts, whereas the Xeon E5530 draws 80 watts.

Core and thread counts also diverge sharply. The i3-7100 offers 2 cores and 4 threads, while the Xeon E5530 offers 4 cores and 8 threads. The Xeon compensates for its lower base clock of 2.40 GHz (with a boost clock of 2.67 GHz) by having double the physical cores. The i3-7100 runs at a fixed 3.90 GHz with no boost clock.

Cache hierarchies are another differentiator. Both chips share 64 KB of L1 and 256 KB of L2 per core. However, the i3-7100 has 3 MB of shared L3 cache, while the Xeon E5530 has 8 MB of shared L3 cache. The larger cache on the Xeon is notable given its server orientation.

Memory support is entirely different. The i3-7100 uses DDR4 over a dual-channel bus with a theoretical bandwidth of 38.4 GB/s. The Xeon E5530 uses DDR3 over a triple-channel bus with a theoretical bandwidth of 25.6 GB/s. The i3 also lacks ECC support, while the Xeon includes it.

The integrated graphics situation is also distinct. The i3-7100 includes Intel HD 630 graphics, whereas the Xeon E5530 has no integrated graphics at all. The i3 also supports PCIe Gen 3 with 16 lanes (CPU only), while the Xeon supports PCIe Gen 2.

Transistor count and die size are recorded only for the Xeon: 731 million transistors on a 263 mm² die. The i3-7100 has no recorded values for these fields. Finally, the Xeon is marked as a Server/Workstation part, while the i3 is a Desktop part.

Head-to-Head Benchmarks

The recorded head-to-head data shows a clear, though narrow, sweep for the Intel Xeon E5530. Across five benchmark tests, the Xeon wins all five. The largest margin is in Cinebench R15 multicore, where the Xeon scores 234 against the i3-7100's 232, a delta of -0.9%. This is the only test where the gap exceeds 0.8%.

In Cinebench R20 multicore, the Xeon scores 977 versus 970 for the i3, a delta of -0.7%. The single-core R20 test shows the Xeon at 137 and the i3 at 136, also a -0.7% delta. Cinebench R23 multicore has the Xeon at 2328 and the i3 at 2310, a -0.8% delta. The closest result is Cinebench R23 single-core, where the Xeon scores 328 and the i3 scores 326, a delta of -0.6%.

These deltas are all under 1%, indicating that despite the Xeon having twice the cores and threads, the i3-7100's much higher clock speed and newer architecture keep it within striking distance. The i3-7100 has no wins in the head-to-head table, but it also does not fall behind by more than 0.9% in any test.

Looking at the broader benchmark database, the i3-7100 has an average benchmark score of 781, and the Xeon E5530 has 801. That is a 2.6% difference in average score, which aligns with the head-to-head results. Both processors sit at the 21st percentile among all CPUs, meaning they are in the same performance tier despite their architectural differences.

Specification Differences

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

| Field | Intel Core i3-7100 | Intel Xeon E5530 |

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

| Cores | 2 | 4 |

| Threads | 4 | 8 |

| Base Clock | 3.90 GHz | 2.40 GHz |

| Boost Clock | None | 2.67 GHz |

| TDP | 51 W | 80 W |

| Socket | Intel Socket 1151 | Intel Socket 1366 |

| Architecture | Kaby Lake | Nehalem |

| Codename | Kaby Lake | Gainestown |

| Process Node | 14 nm | 45 nm |

| Transistors | Not recorded | 731 million |

| Die Size | Not recorded | 263 mm² |

| L3 Cache | 3 MB (shared) | 8 MB (shared) |

| Memory Support | DDR4 | DDR3 |

| Memory Bus | Dual-channel | Triple-channel |

| Memory Bandwidth | 38.4 GB/s | 25.6 GB/s |

| ECC Memory | No | Yes |

| PCIe | Gen 3, 16 Lanes (CPU only) | Gen 2 |

| Integrated Graphics | Intel HD 630 | None |

| Market Segment | Desktop | Server/Workstation |

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

| Release Date | 2017-01-02 | 2009-03-29 |

| Launch MSRP | None recorded | $530 |

| Part Number | SR35C | SLBF7 |

The Core i3-7100 is the newer, more efficient part. The Xeon E5530 is the older, higher-core-count server chip with ECC support and triple-channel memory.

The Verdict

The data points to the Intel Xeon E5530 as the marginally faster processor in every recorded benchmark. It wins all five head-to-head tests, with deltas ranging from -0.6% to -0.9%. Its average benchmark score of 801 also edges out the i3-7100's 781. For workloads that can use all cores and threads, the Xeon's 4-core, 8-thread configuration gives it a structural advantage over the i3's 2-core, 4-thread setup.

However, the margin is so small that it may not matter in practice. A 0.9% difference in Cinebench R15 multicore is within run-to-run variance for many systems. The i3-7100 achieves this near-parity despite having half the cores, thanks to its 3.90 GHz clock speed and 14 nm process. It also offers integrated graphics, DDR4 support, and a much lower TDP of 51 watts.

The Xeon E5530 is the pick for server-style workloads that need ECC memory, triple-channel DDR3, or a larger 8 MB L3 cache. It is also the only option for Socket 1366 platforms. The i3-7100 is the pick for a modern desktop build on Socket 1151, where its active production status, integrated graphics, and lower power draw are clear advantages. Neither chip is a dominant winner, but the Xeon has the numerical edge in raw performance.

Where Each One Wins

The Intel Xeon E5530 wins in every recorded benchmark test. That includes multicore and single-core workloads in Cinebench R15, R20, and R23. Its largest win is in Cinebench R15 multicore at 234 versus 232. It also wins in Cinebench R23 multicore at 2328 versus 2310. For users running heavily threaded applications, the Xeon's 8 threads and 8 MB of L3 cache provide the better foundation.

The Xeon also wins in scenarios requiring ECC memory. This makes it suitable for workstations and servers where data integrity is critical. Its triple-channel memory bus, while slower in theoretical bandwidth at 25.6 GB/s compared to 38.4 GB/s for the i3, offers a wider path for memory-intensive server tasks.

The Intel Core i3-7100 wins in no recorded benchmark tests. However, its advantages are qualitative. It has integrated graphics, so a system can be built without a discrete GPU. It supports faster DDR4 memory with higher theoretical bandwidth. Its 51 watt TDP makes it far more power-efficient than the 80 watt Xeon. It is also an active product, meaning it is still in production, while the Xeon is end-of-life.

For a desktop user who values low power, modern platform features, and built-in graphics, the i3-7100 is the sensible choice despite losing every benchmark. For a user who needs ECC support, more threads, or is already on a Socket 1366 platform, the Xeon E5530 is the better fit. The recorded data shows the Xeon as the faster chip, but the i3-7100 wins on platform modernity and efficiency.