Intel Processor U300 vs Intel Xeon E5-1630 v4 Comparison

Head-to-Head Benchmarks

The benchmark data presents a clear split between the Intel Processor U300 and the Intel Xeon E5-1630 v4, with each processor dominating in different workload types. The U300 wins three of the four compared tests, while the Xeon E5-1630 v4 claims one decisive victory.

In Cinebench R15 multicore, the U300 scores 781 against the Xeon's 651, a 20% advantage. This is a solid lead, though not overwhelming. The single-core R15 result is far more lopsided: U300 scores 222 versus 91, a 144% delta. That is a massive margin, indicating the U300's newer architecture delivers dramatically better per-thread performance in this legacy test.

The tables turn in Cinebench R23 multicore. Here the Xeon E5-1630 v4 scores 6464 against the U300's 4905, a 24.1% deficit for the U300. This is the Xeon's only win, but it is substantial. The R23 single-core test reverts to the U300's favor: 1616 versus 912, a 77.2% advantage.

Interpreting these numbers requires context. The U300's average benchmark score is 1881, placing it at the 43rd percentile among all CPUs. The Xeon E5-1630 v4 averages 1869, at the 42nd percentile. These are nearly identical overall positions, despite the divergent test results. The U300's nearest rivals include the Xeon E3-1558L v5 (avg 1882, 0% delta) and the Xeon E3-1545M v5 (avg 1879, 0.1% delta). The Xeon E5-1630 v4 sits close to the Core i3-9350K (avg 1867, 0.1% delta) and Core i5-1035G4 (avg 1861, 0.4% delta). Notably, each processor appears in the other's nearest rival list, with the U300 rated 0.6% above the Xeon in that comparison.

The R15 multicore result shows the U300 ahead by 20%, but the R23 multicore result flips to a 24.1% lead for the Xeon. This inconsistency suggests the tests stress different aspects of the hardware. The R23 workload likely benefits from the Xeon's higher sustained multi-threaded throughput. The R15 single-core gap of 144% and R23 single-core gap of 77.2% both point to the U300's clear per-thread superiority. Across all four tests, the U300 wins three, but the Xeon's single win in R23 multicore is large enough to keep the overall average scores nearly level.

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Processor U300 has an average benchmark score of 1881, while the Intel Xeon E5-1630 v4 scores 1869. The difference is 12 points, or roughly 0.6%.

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

A: The U300 wins both single-core tests by wide margins. In Cinebench R15 single-core, it scores 222 versus 91, a 144% advantage. In Cinebench R23 single-core, it scores 1616 versus 912, a 77.2% advantage.

Q: In which test does the Xeon E5-1630 v4 outperform the U300?

A: The Xeon wins Cinebench R23 multicore with a score of 6464 against the U300's 4905, a 24.1% lead. This is the only test among the four head-to-head benchmarks where the Xeon comes out ahead.

Q: What are the production statuses of these two processors?

A: The Intel Processor U300 is listed as "Active" production status, while the Intel Xeon E5-1630 v4 is listed as "End-of-life."

Q: Do these processors support ECC memory?

A: The Xeon E5-1630 v4 supports ECC memory, while the U300 does not. The U300 supports DDR4 and DDR5 memory, while the Xeon supports DDR4 only.

Q: How does the U300's percentile ranking compare to the Xeon's?

A: The U300 sits at the 43rd percentile among all CPUs, and the Xeon sits at the 42nd percentile. They are effectively in the same tier of overall performance.

Where Each One Wins

The Intel Processor U300 is the clear choice for single-threaded workloads. Its 144% lead in R15 single-core and 77.2% lead in R23 single-core indicate a substantial per-thread performance advantage. This makes it better suited for applications that rely on fast response times from individual cores, such as interactive workloads or lightly threaded productivity tasks. The U300 also wins the R15 multicore test by 20%, showing it can hold its own in some multi-threaded scenarios, particularly older ones.

The Intel Xeon E5-1630 v4 wins in the modern R23 multicore test by 24.1%. This result suggests the Xeon sustains higher throughput when all cores are heavily loaded over a longer period. The Xeon also brings ECC memory support and quad-channel memory access, which are meaningful for certain server-style workloads that prioritize data integrity and memory bandwidth. Its memory bandwidth is listed at 76.8 GB/s, and it supports 40 PCIe Gen 3 lanes, providing more expansion capability than the U300's 8 PCIe Gen 4 lanes.

The market segments reinforce this split. The U300 is a mobile processor, designed for laptops and compact systems where efficiency matters. The Xeon is a desktop/server-class part with a 140 W TDP, built for sustained compute. The U300's 15 W TDP is dramatically lower, making it suitable for power-constrained environments. The Xeon's higher TDP enables its R23 multicore performance but requires more substantial cooling and power delivery.

For users running modern multi-threaded renderers or similar workloads, the Xeon's R23 multicore lead is the deciding factor. For users who need fast single-threaded performance or operate in power-sensitive mobile platforms, the U300 is the stronger option.

Specification Differences

The two processors differ in nearly every major specification category. The U300 has 5 cores and 6 threads, while the Xeon E5-1630 v4 has 4 cores and 8 threads. The U300's base clock is 1200 MHz with a boost clock of 4.40 GHz. The Xeon's base clock is 3.70 GHz with a boost clock of 4.00 GHz. The U300's TDP is 15 W; the Xeon's is 140 W.

The socket types are incompatible: the U300 uses Intel BGA 1744, and the Xeon uses Intel Socket 2011-3. The U300 supports DDR4 and DDR5 memory on a dual-channel bus, while the Xeon supports DDR4 on a quad-channel bus with 76.8 GB/s bandwidth. The U300 has no ECC support; the Xeon has ECC support. The U300 provides 8 PCIe Gen 4 lanes, while the Xeon provides 40 PCIe Gen 3 lanes.

The U300 includes integrated UHD Graphics 48EU; the Xeon has no integrated graphics. The U300 is a mobile part, and the Xeon is a desktop part. The U300's production status is Active, and the Xeon's is End-of-life. The U300's launch MSRP is $193; the Xeon's launch MSRP is $406.

Architecture Differences

The U300 is built on Raptor Lake architecture (Raptor Lake-U codename) using a 10 nm process node from Intel. The Xeon E5-1630 v4 uses Broadwell architecture (Broadwell-EP codename) on a 14 nm process node. The U300 has 80 KB of L1 cache per core and 1.25 MB of L2 cache per core, with 8 MB of shared L3 cache. The Xeon has 64 KB of L1 cache per core and 256 KB of L2 cache per core, with 10 MB of shared L3 cache.

The Xeon has published transistor and die size figures: 3,400 million transistors on a 246 mm² die. The U300 does not have these figures listed. The U300's memory support spans two generations (DDR4 and DDR5), while the Xeon is limited to DDR4. The U300's PCIe implementation is Gen 4 with fewer lanes, while the Xeon uses Gen 3 with more lanes.

The Xeon's generation is listed as "Xeon E5 (Broadwell-EP)," and the U300's generation is "Intel Processor (Raptor Lake-U)." These are fundamentally different product lines: the U300 is a modern low-power mobile processor, and the Xeon is an older high-power server/desktop processor. The U300's 10 nm process node versus the Xeon's 14 nm process node represents a significant manufacturing generation gap, which helps explain the U300's superior single-core efficiency despite its much lower TDP.

The Verdict

The data points to a clear split based on workload priorities. The Intel Processor U300 is the better choice for single-threaded performance, winning the R15 single-core test by 144% and the R23 single-core test by 77.2%. It also wins R15 multicore by 20%, and it does all this with a 15 W TDP, making it far more power-efficient. Its active production status and support for both DDR4 and DDR5 memory give it a modern platform advantage. The U300 is the pick for users who prioritize per-thread speed, mobile operation, or energy efficiency.

The Intel Xeon E5-1630 v4 is the better choice for modern multi-threaded workloads, specifically those represented by the R23 multicore test, where it leads by 24.1%. Its ECC memory support, quad-channel memory bus with 76.8 GB/s bandwidth, and 40 PCIe Gen 3 lanes make it a more capable platform for server-style applications that require data integrity and high I/O expansion. The Xeon's 4-core/8-thread configuration with a 3.70 GHz base clock sustains throughput in long-running multi-threaded tasks, even though its overall average benchmark score is slightly lower at 1869 versus 1881.

The average benchmark scores are nearly identical, differing by only 0.6%, so the choice hinges on which specific tests matter more. The U300 wins three of four head-to-head tests, but the Xeon's single R23 multicore win is substantial. Users running Cinebench R23-style workloads should favor the Xeon; users running R15-style workloads or any single-threaded application should favor the U300. The Xeon's end-of-life status is a practical consideration, while the U300 remains active. The launch MSRP figures — $193 for the U300 and $406 for the Xeon — reflect their different market positions, but the performance data shows that the newer, cheaper mobile processor is competitive or superior in most measured tests.