Intel Core i5-7400 vs Intel Xeon Gold 6326 Comparison

The Intel Core i5-7400 and Intel Xeon Gold 6326 occupy opposite ends of Intel's product stack. The i5-7400 is a 2017 desktop quad-core, while the Xeon Gold 6326 is a 2021 server/workstation 16-core. The recorded benchmark data shows a decisive performance gap, but the two chips also differ in features that matter for specific builds.

FAQ

Q: Which processor has more cores?

A: The Xeon Gold 6326 has 16 cores and 32 threads, while the i5-7400 has 4 cores and 4 threads.

Q: Does the i5-7400 support ECC memory?

A: No, the i5-7400 does not support ECC memory. The Xeon Gold 6326 does.

Q: Which CPU has integrated graphics?

A: The i5-7400 includes HD 630 graphics. The Xeon Gold 6326 has no integrated graphics.

Q: What is the memory bandwidth difference?

A: The i5-7400 has dual-channel DDR4 with 38.4 GB/s bandwidth. The Xeon Gold 6326 has eight-channel DDR4 with 204.8 GB/s.

Q: Which processor has a higher boost clock?

A: Both have a boost clock of 3.50 GHz. The base clocks differ: 3.00 GHz for the i5, 2.90 GHz for the Xeon.

Q: In Cinebench R23 multi-core, how much faster is the Xeon?

A: The Xeon scores 27904 versus 4658 for the i5, a deficit of 83.3% for the i5.

Architecture Differences

The two processors come from different architectural generations. The i5-7400 uses Kaby Lake, built on Intel's 14 nm process. The Xeon Gold 6326 uses Ice Lake-SP, built on a 10 nm process. This node difference contributes to the Xeon's higher core count and memory capabilities.

Core and cache layouts diverge sharply. The i5-7400 has 4 cores with 4 threads, each core carrying 64 KB of L1 and 256 KB of L2, plus a shared 6 MB L3. The Xeon Gold 6326 has 16 cores with 32 threads, each core with 64 KB of L1 and 1 MB of L2, plus a shared 24 MB L3. The Xeon's per-core L2 is four times larger, and its L3 is four times larger overall.

Memory support is another major split. The i5-7400 uses dual-channel DDR4 with 38.4 GB/s bandwidth and no ECC. The Xeon Gold 6326 uses eight-channel DDR4 with 204.8 GB/s bandwidth and supports ECC memory. The Xeon also offers PCIe Gen 4 with 64 lanes, while the i5-7400 is limited to PCIe Gen 3 with 16 lanes.

Integrated graphics are present only on the i5-7400, which includes HD 630. The Xeon has no integrated graphics, a common trait for server processors. The i5-7400 has a 65 W TDP, while the Xeon Gold 6326 has a 185 W TDP, reflecting the Xeon's much larger silicon and power envelope. The sockets differ as well: the i5-7400 uses Intel Socket 1151, the Xeon uses Intel Socket 4189.

Where Each One Wins

The head-to-head benchmark set includes six Cinebench tests, and the Xeon Gold 6326 wins all of them. The i5-7400 does not win a single recorded benchmark in that set. However, the i5-7400 does hold advantages in a few non-performance areas. It has a higher base clock (3.00 GHz vs 2.90 GHz) and a much lower TDP (65 W vs 185 W). It also includes integrated graphics, which the Xeon lacks.

For workloads that rely on single-thread speed, the Xeon still leads, but the margin is smaller in some tests. For example, in Cinebench R15 single-core, the Xeon scores 396 against 66 for the i5, a 83.3% deficit for the i5. In Cinebench R23 single-core, the Xeon scores 3939 against 657, again a 83.3% deficit. The Xeon's advantage is consistent across all recorded Cinebench tests, regardless of thread count.

The i5-7400's strengths are practical rather than performance-based. Its integrated graphics allow a system to run without a discrete GPU, and its low TDP makes it easier to cool. The Xeon Gold 6326, with its 16 cores, 32 threads, ECC support, and eight-channel memory, is clearly aimed at server and workstation tasks that demand high throughput and reliability.

Specification Differences

| Feature | Intel Core i5-7400 | Intel Xeon Gold 6326 |

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

| Cores | 4 | 16 |

| Threads | 4 | 32 |

| Base Clock | 3.00 GHz | 2.90 GHz |

| Boost Clock | 3.50 GHz | 3.50 GHz |

| TDP | 65 W | 185 W |

| Socket | Intel Socket 1151 | Intel Socket 4189 |

| Architecture | Kaby Lake | Ice Lake-SP |

| Process Node | 14 nm | 10 nm |

| L2 Cache (per core) | 256 KB | 1 MB |

| L3 Cache (shared) | 6 MB | 24 MB |

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

| Memory Bandwidth | 38.4 GB/s | 204.8 GB/s |

| ECC Memory | No | Yes |

| PCIe | Gen 3, 16 Lanes | Gen 4, 64 Lanes |

| Integrated Graphics | HD 630 | None |

| Market Segment | Desktop | Server/Workstation |

| Release Date | 2017-01-02 | 2021-04-05 |

| Part Number | SR32W | Not listed |

Head-to-Head Benchmarks

The recorded head-to-head data covers six Cinebench tests, and the Xeon Gold 6326 wins every one. The i5-7400 trails by 83.3% in five of the six tests, and by 83.4% in one.

In Cinebench R15 multi-core, the i5-7400 scores 469 while the Xeon scores 2812, a deficit of 83.3%. The single-core R15 test shows 66 for the i5 and 396 for the Xeon, again a 83.3% gap. Moving to Cinebench R20, the multi-core result is 1956 for the i5 and 11719 for the Xeon, a 83.3% deficit. The R20 single-core test has 275 for the i5 and 1654 for the Xeon, a 83.4% deficit. In Cinebench R23, the multi-core score is 4658 for the i5 and 27904 for the Xeon, a 83.3% gap. The R23 single-core test shows 657 for the i5 and 3939 for the Xeon, again 83.3%.

These numbers indicate that the Xeon Gold 6326 is roughly six times faster than the i5-7400 in every Cinebench test, regardless of whether the workload is single-threaded or multi-threaded. The consistency of the 83.3% deficit across all tests suggests that the Xeon's advantage comes from a combination of higher core count, larger caches, and a more modern architecture, rather than any single feature.

The i5-7400's average benchmark score is 7469, placing it in the 63rd percentile of all CPUs. Its nearest rivals include the Intel Core i5-4570 (7421, 0.6% difference), the Intel Core i9-9990XE (7415, 0.7%), the AMD EPYC 7282 (7409, 0.8%), and the Intel Core i9-9980XE (7398, 1%). The Xeon Gold 6326 has an average score of 8071, in the 64th percentile, with nearest rivals including the Intel Xeon Platinum 8180M (8110, -0.5%), the Intel Core i3-8100 (8123, -0.6%), the AMD EPYC 7302 (8139, -0.8%), and the Intel Xeon Gold 5318Y (8147, -0.9%). These figures show that the Xeon sits in a higher performance tier, even though its percentile rank is only one point higher.

The Verdict

The data is unambiguous: the Intel Xeon Gold 6326 is the far more powerful processor. It wins every recorded benchmark, offers 16 cores and 32 threads, supports ECC memory, and provides eight-channel DDR4 with 204.8 GB/s bandwidth. For server, workstation, or any compute-heavy workload that can use many threads, the Xeon is the clear choice.

The Intel Core i5-7400, on the other hand, is a desktop part with integrated graphics and a 65 W TDP. It is suitable for basic desktop use, light productivity, or systems where a discrete GPU is not needed. Its higher base clock (3.00 GHz vs 2.90 GHz) gives it a slight edge in raw clock speed, but that does not translate into a benchmark win in any of the recorded tests.

If the requirement is maximum performance, the Xeon Gold 6326 is the only option. If the requirement is a low-power, integrated-graphics desktop CPU, the i5-7400 has its place. The benchmark data does not support any scenario where the i5-7400 outperforms the Xeon in compute tasks. The choice comes down to the intended use case: server and workstation workloads demand the Xeon, while a simple desktop build can rely on the i5-7400.