Intel Core i3-10300 vs Intel Xeon E3-1285 v4 Comparison

Head-to-Head Benchmarks

The recorded data shows a clean sweep for the Intel Core i3-10300 across all six Cinebench comparisons, though the margins are consistently narrow. In multi-core workloads, the i3-10300 leads by 1.4% in Cinebench R15, R20, and R23, scoring 673 versus 664, 2808 versus 2770, and 6687 versus 6596 respectively. Single-core results tell a similar story: the i3-10300 wins R15 single-core by 2.2% (95 versus 93), R20 single-core by 1.3% (396 versus 391), and R23 single-core by 1.4% (944 versus 931). The largest relative advantage for the i3-10300 appears in R15 single-core, where the 2.2% delta is the biggest gap in the entire head-to-head set.

The Xeon E3-1285 v4, despite its server/workstation positioning, trails in every measured test. Its best performance relative to the i3-10300 comes in R20 single-core, where the 1.3% deficit is the smallest margin recorded. The Xeon's multi-core scores cluster tightly around the i3-10300's results, with all three multi-core deltas sitting at exactly 1.4%. The practical takeaway from these numbers is that the two processors occupy nearly the same performance tier, with the i3-10300 holding a slight but consistent edge.

Architecture Differences

The two CPUs come from different architectural generations and target different market segments. The Intel Core i3-10300 uses the Comet Lake architecture on a 14 nm process node, built for the Intel Socket 1200 platform. Its codename is Comet Lake, and it belongs to the Core 10th Gen family. The Intel Xeon E3-1285 v4 uses the Broadwell architecture, specifically the Broadwell-DT codename, also on a 14 nm process node, but it fits the older Intel Socket 1150 platform. The Xeon sits in the Xeon E3 generation line (Broadwell-DT).

Both processors share 4 cores and 8 threads, and both use 64 KB of L1 cache per core and 256 KB of L2 cache per core. The L3 cache differs: the i3-10300 has 8 MB shared, while the Xeon E3-1285 v4 has 6 MB shared. The die size is only recorded for the Xeon, at 182 mm². Transistor counts are not listed for either part.

Memory support separates the two clearly. The i3-10300 supports DDR4 memory in dual-channel configuration with a memory bandwidth of 42.7 GB/s. The Xeon E3-1285 v4 supports DDR3 memory, also dual-channel, but with a lower memory bandwidth of 29.9 GB/s. ECC memory is supported only on the Xeon, while the i3-10300 does not support ECC. Both use PCIe Gen 3 with 16 lanes from the CPU.

Integrated graphics differ as well. The i3-10300 includes UHD Graphics 630, while the Xeon E3-1285 v4 includes Intel Iris Pro P6300. The market segments are distinct: the i3-10300 is a desktop part, and the Xeon is a server/workstation part. The Xeon is marked as end-of-life, while the i3-10300 is active in production.

Where Each One Wins

The Intel Core i3-10300 wins every recorded benchmark, so the use-case split is straightforward. In any workload that relies on Cinebench rendering performance, whether single-core or multi-core, the i3-10300 holds a measurable advantage. The largest win is in R15 single-core at 2.2%, which suggests the i3-10300 has a slight edge in lightly threaded tasks that depend on raw clock speed and per-core efficiency. Its base clock of 3.70 GHz and boost clock of 4.40 GHz are both higher than the Xeon's 3.50 GHz base and 3.80 GHz boost, which aligns with the observed single-core results.

For multi-threaded rendering, the i3-10300's advantage is consistent at 1.4% across all three Cinebench versions. This indicates that despite identical core and thread counts, the newer architecture and higher clocks translate into a small but repeatable multi-core performance lead. The Xeon E3-1285 v4, meanwhile, does not win any category in this comparison. Its strongest showing relative to the i3-10300 is in R20 single-core, where it trails by only 1.3%.

The Xeon does offer features the i3-10300 lacks, specifically ECC memory support and a larger integrated graphics solution (Iris Pro P6300 versus UHD Graphics 630). For workloads where ECC is a hard requirement, the Xeon becomes the obligatory choice despite its lower benchmark scores. The Xeon also targets the server/workstation segment, which may carry platform-level expectations beyond raw Cinebench performance.

Specification Differences

The two processors differ in several recorded specification fields. The i3-10300 has a base clock of 3.70 GHz versus the Xeon's 3.50 GHz, and a boost clock of 4.40 GHz versus 3.80 GHz. Thermal design power differs substantially: the i3-10300 is rated at 62 W, while the Xeon is rated at 95 W. The i3-10300 uses the Intel Socket 1200, while the Xeon uses Intel Socket 1150.

Cache configuration diverges at the L3 level: 8 MB shared on the i3-10300 versus 6 MB shared on the Xeon. L1 and L2 caches are identical at 64 KB per core and 256 KB per core. Memory support differs by generation: DDR4 for the i3-10300 and DDR3 for the Xeon. Memory bandwidth is 42.7 GB/s for the i3-10300 and 29.9 GB/s for the Xeon. ECC memory is supported on the Xeon but not on the i3-10300.

The integrated graphics are different: UHD Graphics 630 on the i3-10300 versus Intel Iris Pro P6300 on the Xeon. Market segments differ, with the i3-10300 listed as desktop and the Xeon as server/workstation. Production status separates them: the i3-10300 is active, while the Xeon is end-of-life. The Xeon has a recorded die size of 182 mm², while the i3-10300 has no die size listed. Release dates differ, with the Xeon released earlier and the i3-10300 later. The Xeon has a launch MSRP of $556, which can be stated once as a point of reference.

FAQ

Q: Which processor has the higher clock speeds?

A: The Intel Core i3-10300 has both a higher base clock (3.70 GHz versus 3.50 GHz) and a higher boost clock (4.40 GHz versus 3.80 GHz) compared to the Intel Xeon E3-1285 v4.

Q: Do the two CPUs have the same core and thread counts?

A: Yes, both the Intel Core i3-10300 and the Intel Xeon E3-1285 v4 have 4 cores and 8 threads.

Q: Which processor supports ECC memory?

A: The Intel Xeon E3-1285 v4 supports ECC memory, while the Intel Core i3-10300 does not.

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

A: The largest margin is in Cinebench R15 single-core, where the Intel Core i3-10300 leads by 2.2% (95 versus 93).

Q: How much L3 cache does each processor have?

A: The Intel Core i3-10300 has 8 MB shared L3 cache, while the Intel Xeon E3-1285 v4 has 6 MB shared L3 cache.

Q: Are both processors on the same process node?

A: Yes, both the Intel Core i3-10300 and the Intel Xeon E3-1285 v4 are built on a 14 nm process node.

The Verdict

The recorded benchmark data points to the Intel Core i3-10300 as the faster processor in every measured Cinebench test. Its wins range from 1.3% to 2.2%, with the single-core advantage slightly larger than the multi-core edge. The i3-10300 also offers higher clock speeds, more L3 cache, newer DDR4 memory support with higher bandwidth, and a lower TDP of 62 W versus 95 W. For users who prioritize raw rendering performance and power efficiency, the i3-10300 is the clear choice from the data.

The Intel Xeon E3-1285 v4, while trailing in all benchmarks, retains a specific role. Its ECC memory support makes it the only option here for systems that require error-correcting memory. Its server/workstation market segment and end-of-life production status suggest it is intended for legacy or specialized deployments rather than general performance chasing. The Xeon also has a launch MSRP of $556, which serves as a reference point for its original positioning.

The performance gap between the two is small in absolute terms. The largest delta, 2.2% in R15 single-core, would be difficult to perceive in real-world use. The deciding factors should therefore be platform compatibility, memory requirements, and feature needs. If ECC is essential, the Xeon E3-1285 v4 is the only viable option. Otherwise, the i3-10300 wins on every recorded benchmark, offers a newer socket, and draws less power. The data is unambiguous: the i3-10300 is the better performer, while the Xeon retains niche value for ECC-dependent workloads.