Intel Core i3-10305 vs Intel Xeon D-1548 Comparison

The Intel Core i3-10305 and Intel Xeon D-1548 present a fascinating study in contrast: a modern desktop quad-core facing off against an older, but wider, server octa-core. Both CPUs land at the 47th percentile among all tested processors, and their average benchmark scores are remarkably close at 2264 and 2231 respectively. The data reveals a consistent, yet narrow, victory for the Core i3-10305 across every single Cinebench test, with the Xeon D-1548 unable to secure a single win in the head-to-head comparison.

Head-to-Head Benchmarks

The benchmark results show a clear, if modest, pattern of dominance for the Intel Core i3-10305. In the Cinebench R15 multicore test, the i3-10305 scores 788 against the Xeon D-1548's 777, a 1.4% advantage. The single-core R15 result is slightly more pronounced, with the i3-10305 scoring 111 to the Xeon's 109, a 1.8% lead. This pattern holds steady through the newer Cinebench iterations.

In Cinebench R20, the multicore scores are 3287 for the i3-10305 and 3239 for the Xeon D-1548, a 1.5% delta. The single-core R20 test shows the same 1.5% margin, with scores of 464 and 457. The most recent Cinebench R23 tests continue this exact trend; the i3-10305 achieves 7828 in multicore and 1105 in single-core, while the Xeon D-1548 trails at 7713 and 1089, respectively. Each of these R23 results also reflects a 1.5% performance gap.

The consistency is notable. Across six different benchmark tests, the Core i3-10305 wins every one, but the margin of victory never exceeds 1.8%. This suggests that the architectural efficiency and higher clock speeds of the desktop chip are sufficient to overcome the Xeon's doubling of cores and threads. The Xeon D-1548, despite having 8 cores and 16 threads compared to the i3-10305's 4 cores and 8 threads, cannot translate its raw parallel resources into a Cinebench victory. The data implies that the i3-10305's much higher clock speeds—3.80 GHz base and 4.50 GHz boost versus the Xeon's 2.00 GHz base and 2.60 GHz boost—are the decisive factor in these workloads.

The Verdict

The data is unequivocal: the Intel Core i3-10305 is the superior performer in these Cinebench workloads. It wins 6 out of 6 head-to-head benchmarks, with a lead ranging from 1.4% to 1.8%. For anyone primarily concerned with raw CPU rendering performance in applications similar to Cinebench, the i3-10305 is the clear choice. Its consistent, albeit narrow, victory demonstrates that its architectural advantages and higher clock speeds trump the Xeon's additional cores.

However, the Xeon D-1548 is not without its reasons for existence. The data shows it is a 45W TDP part, versus the 65W TDP of the i3-10305, and it supports ECC memory, which the i3-10305 does not. It is also designed for the server/workstation market segment, while the i3-10305 targets desktops. The Xeon D-1548's launch MSRP was $555, and it is intended for a different physical and operational environment, using the Intel BGA 1667 socket rather than the i3-10305's Intel Socket 1200.

The verdict is not about which is a "better" CPU in a vacuum, but which fits a specific need. From a pure performance metric in Cinebench R15, R20, and R23, the i3-10305 is the winner. The Xeon D-1548 is the choice only when its specific platform features—ECC memory support, lower TDP, and server-oriented design—are non-negotiable requirements, accepting a small performance deficit in return.

Architecture Differences

The two processors come from different Intel architectural eras and are built for different purposes. The Core i3-10305 is based on the Comet Lake architecture, specifically the Comet Lake-R codename, and is part of the Core 10th Gen series. It is fabricated on Intel's 14 nm process node. In contrast, the Xeon D-1548 uses the older Broadwell architecture, with the codename Broadwell-DE, and is also on a 14 nm process node. Both are built by Intel's foundry.

The cache layouts differ significantly. The i3-10305 has an 8 MB shared L3 cache, while the Xeon D-1548 has a 1.5 MB per-core L3 cache. With 8 cores, this translates to a total of 12 MB of L3 cache for the Xeon, which is larger overall but distributed differently. Both CPUs have identical L1 and L2 cache sizes per core, at 64 KB and 256 KB respectively.

A major architectural difference lies in memory support. The i3-10305 only supports DDR4 memory and does not support ECC memory. The Xeon D-1548 supports both DDR3 and DDR4, and crucially, it has ECC memory support. This is a fundamental feature for server and workstation reliability. The Xeon D-1548 also has a larger transistor count at 3,200 million and a die size of 246 mm², whereas the i3-10305 does not have these figures listed. The Xeon also offers more PCIe lanes, with 24 lanes compared to the i3-10305's 16 lanes, both being Gen 3.

Specification Differences

The specification sheet highlights the divergent design goals of these two chips. The most glaring difference is in core and thread counts: the i3-10305 has 4 cores and 8 threads, while the Xeon D-1548 doubles that to 8 cores and 16 threads. This is a significant theoretical advantage for the Xeon in heavily threaded workloads, yet the benchmark data shows it cannot capitalize on it in Cinebench.

Clock speeds are the next major differentiator. The i3-10305 has a base clock of 3.80 GHz and a boost clock of 4.50 GHz. The Xeon D-1548 operates at a much lower 2.00 GHz base and 2.60 GHz boost. This difference is the most plausible explanation for the i3-10305's consistent benchmark lead.

Thermal design power also separates them. The i3-10305 has a TDP of 65W, whereas the Xeon D-1548 is rated for a lower 45W. The sockets are completely different, with the i3-10305 using Intel Socket 1200 and the Xeon D-1548 using Intel BGA 1667, which is a soldered, non-upgradeable platform. The i3-10305 includes integrated graphics (UHD Graphics 630), while the Xeon D-1548 has none. The memory bandwidth is listed as 42.7 GB/s for the i3-10305, while it is not specified for the Xeon. The Xeon D-1548's release date is earlier (2015-10-31) than the i3-10305's (2021-03-15), reflecting its older architecture. The Xeon D-1548 has a launch MSRP of $555, while the i3-10305 does not have a listed launch MSRP.

FAQ

Q: Which CPU has more cores and threads?

A: The Intel Xeon D-1548 has significantly more, with 8 cores and 16 threads, compared to the Intel Core i3-10305's 4 cores and 8 threads.

Q: Does the Intel Core i3-10305 support ECC memory?

A: No, the i3-10305 does not support ECC memory. This feature is exclusive to the Intel Xeon D-1548 in this comparison.

Q: What is the performance difference in Cinebench R23 multicore?

A: The Intel Core i3-10305 scores 7828, which is 1.5% higher than the Intel Xeon D-1548's score of 7713.

Q: Which CPU has a higher boost clock speed?

A: The Intel Core i3-10305 has a significantly higher boost clock of 4.50 GHz, compared to the Intel Xeon D-1548's 2.60 GHz boost clock.

Q: Which processor is designed for a server environment?

A: The Intel Xeon D-1548 is explicitly marked for the "Server/Workstation" market segment, while the Intel Core i3-10305 is for the "Desktop" segment.

Q: How many benchmark wins does each CPU have in the head-to-head comparison?

A: The Intel Core i3-10305 has 6 wins, and the Intel Xeon D-1548 has 0 wins.

Where Each One Wins

The Intel Core i3-10305 wins in every measurable performance benchmark included in the data. It demonstrates superior results in all Cinebench R15, R20, and R23 tests, for both single-core and multi-core workloads. The data suggests this CPU is the better choice for any application that relies on raw CPU compute performance, especially where higher clock speeds are beneficial. Its integrated graphics also provide a basic display output capability that the Xeon lacks. For a desktop user building a system for tasks like content creation or general productivity, the i3-10305's benchmark results make it the definitive winner.

The Intel Xeon D-1548 wins in specific platform features rather than benchmark performance. Its key advantages are its support for ECC memory, which is critical for data integrity in server environments, and its lower 45W TDP. It also offers more PCIe lanes (24 vs 16) and supports both DDR3 and DDR4 memory types. The Xeon's larger transistor count and die size indicate a more complex silicon design aimed at sustained server workloads. Its use case is a compact, low-power server or workstation where ECC memory and reliability are prioritized over maximum Cinebench scores. The data shows it is a capable processor, but it sacrifices performance to meet its design goals.