Intel Core i3-9300 vs Intel Xeon E5-1428L v2 Comparison

The Intel Core i3-9300 and Intel Xeon E5-1428L v2 are both end-of-life Intel processors, but they target entirely different segments: the i3-9300 is a desktop chip for Socket 1151, while the Xeon E5-1428L v2 is a server/workstation part for Socket 1356. Benchmark data shows a clear, albeit narrow, victory for the Core i3-9300, which wins all six head-to-head Cinebench comparisons. However, the margins are razor-thin, ranging from 1.0% to 1.3%, meaning the Xeon’s two extra cores and twelve threads do not translate into a multi-core advantage in these tests. The Core i3-9300 also holds a slightly higher percentile rank (39th vs. 38th) and a higher average benchmark score (1554 vs. 1537).

Where Each One Wins

The Core i3-9300 wins every benchmark in this comparison, but its victories are strictly by small margins. In single-core tests, the i3-9300’s advantage is consistent: it leads by 1.3% in Cinebench R15 single-core (76 vs. 75) and by 1.1% in R23 single-core (758 vs. 750). This makes it the better choice for lightly-threaded workloads where per-core clock speed dominates, such as older games or general desktop responsiveness. Its higher base clock (3.70 GHz) and boost clock (4.30 GHz) compared to the Xeon’s 2.20 GHz base and 2.70 GHz boost are the primary drivers of this edge.

The Xeon E5-1428L v2 does not win any head-to-head benchmark, but its value lies in platform features rather than raw score. It offers triple-channel DDR3 memory support (32.0 GB/s bandwidth) and 24 PCIe Gen 3 lanes, compared to the i3-9300’s dual-channel DDR4 (38.4 GB/s) and 16 lanes. The Xeon also has a larger 15 MB shared L3 cache versus the i3-9300’s 8 MB, and it supports ECC memory, which the i3-9300 also does. The Xeon’s 60W TDP is slightly lower than the i3-9300’s 62W, making it a marginally more power-efficient part for dense server deployments, though the benchmark data does not quantify this advantage.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Xeon E5-1428L v2 has 6 cores and 12 threads, while the Intel Core i3-9300 has 4 cores and 4 threads. Despite this, the Xeon does not win any multi-core benchmark in this dataset.

Q: What is the largest performance difference between the two CPUs?

A: The largest margin is in Cinebench R15 single-core, where the Core i3-9300 leads by 1.3% (76 vs. 75). The smallest margin is in Cinebench R20 single-core, where the i3-9300 leads by 1.0% (318 vs. 315).

Q: Do the benchmark results favor the newer architecture?

A: Yes. The Core i3-9300, based on Coffee Lake (14 nm process), edges out the Xeon E5-1428L v2, based on Ivy Bridge (22 nm process), in all six Cinebench tests. The i3-9300’s average benchmark score of 1554 is 1.1% higher than the Xeon’s 1537.

Q: Which CPU supports ECC memory?

A: Both processors support ECC memory. The Core i3-9300 supports DDR4 ECC, while the Xeon E5-1428L v2 supports DDR3 ECC.

Q: What are the memory bandwidth differences?

A: The Core i3-9300 has a dual-channel DDR4 bus with 38.4 GB/s bandwidth. The Xeon E5-1428L v2 has a triple-channel DDR3 bus with 32.0 GB/s bandwidth. The i3-9300 offers higher theoretical bandwidth.

Q: Which CPU has a higher launch MSRP?

A: The Xeon E5-1428L v2 had a launch MSRP of $494, while the Core i3-9300 had a launch MSRP of $143. The benchmark data shows the cheaper part performs slightly better in all tested workloads.

Head-to-Head Benchmarks

The Core i3-9300 wins all six head-to-head Cinebench comparisons, but the margins are consistent and narrow. In Cinebench R15 multi-core, the i3-9300 scores 541 against the Xeon’s 535, a 1.1% lead. The single-core R15 result is similar: 76 vs. 75, a 1.3% advantage. Moving to Cinebench R20, the i3-9300 posts 2257 multi-core versus 2232 for the Xeon, again a 1.1% difference, and 318 single-core versus 315, a 1.0% lead. The pattern holds in Cinebench R23: multi-core 5374 vs. 5316 (1.1% ahead) and single-core 758 vs. 750 (1.1% ahead).

These results are notable because the Xeon has 6 cores and 12 threads, which would typically suggest a multi-core advantage. Yet the i3-9300’s much higher clock speeds (3.70/4.30 GHz vs. 2.20/2.70 GHz) and newer Coffee Lake architecture overcome the core deficit. The largest single margin is the 1.3% in R15 single-core, which is still under 2%. The smallest margin is the 1.0% in R20 single-core, indicating that the two CPUs are remarkably close in sustained performance despite their generational and structural differences. The i3-9300’s average benchmark score of 1554 sits 1.1% above the Xeon’s 1537, confirming the overall trend.

Specification Differences

The two processors differ in nearly every fundamental specification. The Core i3-9300 has 4 cores and 4 threads, while the Xeon E5-1428L v2 has 6 cores and 12 threads. Clock speeds diverge sharply: the i3-9300 runs at 3.70 GHz base and 4.30 GHz boost, whereas the Xeon runs at 2.20 GHz base and 2.70 GHz boost. TDP is close, with the i3-9300 at 62W and the Xeon at 60W. Sockets are incompatible: LGA 1151 for the i3-9300 versus LGA 1356 for the Xeon.

Memory support differs: the i3-9300 uses dual-channel DDR4 with 38.4 GB/s bandwidth, while the Xeon uses triple-channel DDR3 with 32.0 GB/s bandwidth. Both support ECC memory. PCIe lane counts also differ: the i3-9300 provides 16 Gen 3 lanes, while the Xeon provides 24 Gen 3 lanes. The i3-9300 includes integrated UHD 630 graphics; the Xeon has no integrated graphics. The i3-9300 has an 8 MB shared L3 cache, while the Xeon has a 15 MB shared L3 cache. L1 and L2 caches are identical per core (64 KB and 256 KB, respectively). The i3-9300 has a smaller die (126 mm²) than the Xeon (257 mm²), and the Xeon has a transistor count of 1,860 million, while the i3-9300’s transistor count is not listed.

Architecture Differences

The Core i3-9300 is built on the Coffee Lake architecture using a 14 nm process, while the Xeon E5-1428L v2 uses the Ivy Bridge-EN architecture on a 22 nm process. The i3-9300’s die size is 126 mm², compared to the Xeon’s 257 mm². The Xeon has a listed transistor count of 1,860 million, while the i3-9300’s is not provided. The generation names reflect this gap: the i3-9300 is part of the Core i3 (Coffee Lake Refresh) family, while the Xeon is part of the Xeon E5 (Ivy Bridge-EN) family.

The Xeon’s larger 15 MB shared L3 cache is a direct result of its server-oriented design, intended to hold more working data for multi-threaded server workloads. The i3-9300’s 8 MB shared L3 cache is smaller but paired with higher clock speeds. The i3-9300 has integrated UHD 630 graphics, which the Xeon lacks entirely, underscoring the desktop versus server split. The Xeon supports triple-channel memory, a server feature that increases memory parallelism, while the i3-9300 uses dual-channel. The process node difference (14 nm vs. 22 nm) explains why the i3-9300 achieves higher clocks at a similar TDP, despite having fewer cores.

The Verdict

The data is unambiguous: the Intel Core i3-9300 outperforms the Intel Xeon E5-1428L v2 in every measured benchmark. It wins all six Cinebench tests, with margins from 1.0% to 1.3%, and holds a higher average benchmark score (1554 vs. 1537). For any user choosing purely on performance, the i3-9300 is the correct pick, especially for single-threaded tasks where its clock speed advantage (4.30 GHz boost vs. 2.70 GHz) yields a consistent edge.

The Xeon E5-1428L v2 remains relevant only for platforms requiring its specific server features: 24 PCIe Gen 3 lanes, triple-channel DDR3 memory, and a larger 15 MB L3 cache. It also supports ECC memory, as does the i3-9300, but the Xeon’s socket (LGA 1356) and server chipset ecosystem are the only reasons to choose it. Its 6-core/12-thread configuration offers more parallel resources on paper, but the benchmark results show no multi-core win, meaning the i3-9300’s architectural efficiency and higher clocks negate the core disadvantage.

The Core i3-9300 is the verdict for general desktop use, light gaming, and any workload that benefits from high single-core performance. The Xeon E5-1428L v2 is only justified for legacy server builds that need its PCIe lane count or triple-channel memory, accepting a small performance deficit in all Cinebench workloads. The i3-9300’s launch MSRP of $143 also contrasts with the Xeon’s $494, but the performance data alone is sufficient to recommend the i3-9300 for most scenarios.