Intel Core i5-4250U vs Intel Xeon E5450 Comparison

FAQ

Q: Which processor has the higher average benchmark score?

A: Both processors are essentially tied in the database. The Intel Xeon E5450 and the Intel Core i5-4250U each hold an average benchmark score of 756. The Xeon's nearest rivals list places the i5-4250U at a 0% delta, and the i5's list places the Xeon at -0.1%, which is within measurement noise.

Q: How do they compare in multicore performance?

A: The Xeon E5450 wins every recorded multicore test. In Cinebench R15 multicore, it scores 221 versus 182 for the i5-4250U, a 21.4% advantage. In Cinebench R20 multicore, the gap is 923 versus 760, also 21.4%. In Cinebench R23 multicore, the Xeon scores 2198 against 1811, again 21.4% ahead.

Q: Which chip has better single-core performance?

A: The Xeon E5450 also leads in single-core tests. In Cinebench R20 single-core, it scores 130 versus 107 for the i5-4250U, a 21.5% edge. In Cinebench R23 single-core, the Xeon scores 310 versus 255, a 21.6% advantage. The i5-4250U was not recorded in any single-core test that it won.

Q: What are the core and thread counts?

A: The Xeon E5450 has 4 cores and 4 threads. The Core i5-4250U has 2 cores and 4 threads, using Hyper-Threading to reach the same thread count.

Q: Do these processors support ECC memory?

A: Yes for the Xeon E5450, which has ECC memory support. The Core i5-4250U does not support ECC memory.

Q: What is the launch price of the Xeon E5450?

A: The Xeon E5450 has a launch MSRP of $915. The i5-4250U has no recorded launch MSRP in the database.

Architecture Differences

The two chips come from different eras and design philosophies. The Intel Xeon E5450 is a server and workstation part built on the Core 2 architecture, codenamed Harpertown. It uses a 45 nm process node and packs 820 million transistors on a dual-die design measuring 2x 107 mm². The Core i5-4250U is a mobile chip based on the Haswell architecture, built on a 22 nm process node with 1,400 million transistors on a single 118 mm² die.

The core configurations differ significantly. The Xeon has 4 physical cores with 4 threads, meaning each core handles a single thread. The i5-4250U has 2 physical cores but 4 threads, relying on simultaneous multithreading to double its logical thread count. This explains why the Xeon can win multicore workloads despite the i5's newer architecture.

Cache hierarchies also diverge. The Xeon E5450 has 64 KB of L1 cache per core and a 6 MB L2 cache per die. The i5-4250U has 64 KB of L1 per core, 256 KB of L2 per core, and a 3 MB shared L3 cache. The Xeon has no L3 cache at all, while the i5 relies on its L3 for shared data.

Memory support differs by platform. The Xeon E5450 supports DDR2 and DDR3, depending on the motherboard, over a dual-channel memory bus, and it supports ECC memory. The i5-4250U supports DDR3 only and lacks ECC support. The Xeon uses Intel Socket 771, while the i5 uses Intel BGA 1168, which is soldered to the motherboard.

Power characteristics are starkly different. The Xeon E5450 has a TDP of 80 watts, typical for a server part. The i5-4250U has a TDP of just 15 watts, reflecting its mobile, low-power design. The Xeon has a base clock of 3.00 GHz with no boost clock. The i5 has a base clock of 1300.00 MHz (1.30 GHz) and a boost clock of 2.60 GHz.

The Xeon has PCIe Gen 2 support and no integrated graphics. The i5-4250U includes Intel HD 5000 integrated graphics and has no recorded PCIe generation in the database. The Xeon was released in 2007 and is end-of-life. The i5-4250U was released in 2013.

Head-to-Head Benchmarks

The head-to-head data is one-sided. Across five recorded Cinebench tests, the Xeon E5450 wins all five, and the i5-4250U wins none.

The largest margin is in single-core Cinebench R23, where the Xeon scores 310 versus 255, a 21.6% difference. Single-core Cinebench R20 shows a 21.5% gap, with the Xeon at 130 and the i5 at 107. These single-core results are notable because the i5 has a much higher boost clock of 2.60 GHz, yet it still trails the Xeon's fixed 3.00 GHz clock by roughly a fifth.

Multicore results are consistently at 21.4% in favor of the Xeon. In Cinebench R15 multicore, the Xeon scores 221 against 182. In Cinebench R20 multicore, the Xeon scores 923 against 760. In Cinebench R23 multicore, the Xeon scores 2198 against 1811. The consistency of the 21.4% delta across all three multicore tests suggests a stable performance relationship, not a workload-specific anomaly.

The i5-4250U does have additional Geekbench results in the database: 1434 multicore and 742 single-core. However, no corresponding Geekbench scores are recorded for the Xeon E5450, so these cannot be directly compared in the head-to-head table.

The average benchmark scores reinforce the tie: both processors sit at 756 in the database, with the Xeon's nearest rivals listing the i5 at 0% delta and the i5's nearest rivals listing the Xeon at -0.1%. Both also share the same 20th percentile ranking among all CPUs, placing them in the lower-middle range of the database's performance distribution.

The Verdict

The data points to a clear winner for raw compute performance: the Intel Xeon E5450. It wins every head-to-head benchmark recorded, with margins between 21.4% and 21.6% across Cinebench R15, R20, and R23, in both single-core and multicore tests. For anyone running CPU-heavy workloads that these benchmarks represent, the Xeon is the stronger part.

The Core i5-4250U is not without its place. It draws a fraction of the power, 15 watts versus 80 watts, and comes with integrated graphics, which the Xeon lacks entirely. It also has a newer architecture, Haswell versus Core 2, and a much more recent release date, 2013 versus 2007. For a low-power mobile system where battery life and heat matter more than peak throughput, the i5 makes sense.

But the benchmark data does not show a single test where the i5-4250U comes out ahead. The Xeon's advantage in single-core is just as large as its multicore lead, meaning even lightly threaded tasks favor the older server chip. The i5's boost clock of 2.60 GHz cannot compensate for the Xeon's higher base clock and additional physical cores.

The average benchmark scores being identical, 756 for both, is misleading at first glance. The head-to-head results show why: the database averages include different test sets. The Xeon's average is drawn from its five Cinebench scores, while the i5's average includes Geekbench results as well. When the same tests are compared directly, the Xeon wins decisively.

For a desktop or workstation build with power to spare, the Xeon E5450 is the data-backed choice. For a fanless or battery-powered mobile system, the i5-4250U is the only practical option given its 15 watt TDP and integrated GPU. The verdict from the recorded measurements is that the Xeon is the faster processor, and the i5 is the more efficient one.

Specification Differences

The two processors differ in nearly every major specification field.

Core and thread counts: the Xeon E5450 has 4 cores and 4 threads. The i5-4250U has 2 cores and 4 threads.

Clock speeds: the Xeon runs at a base clock of 3.00 GHz with no boost clock. The i5 has a base clock of 1300.00 MHz and a boost clock of 2.60 GHz.

TDP: the Xeon is rated at 80 watts. The i5 is rated at 15 watts.

Socket: the Xeon uses Intel Socket 771. The i5 uses Intel BGA 1168.

Architecture and process: the Xeon is Core 2 architecture, codenamed Harpertown, on a 45 nm node. The i5 is Haswell architecture, codenamed Haswell, on a 22 nm node.

Transistors and die size: the Xeon has 820 million transistors on a 2x 107 mm² die. The i5 has 1,400 million transistors on a 118 mm² die.

Cache: the Xeon has 64 KB L1 per core and 6 MB L2 per die, with no L3. The i5 has 64 KB L1 per core, 256 KB L2 per core, and 3 MB shared L3.

Memory: the Xeon supports DDR2 and DDR3 depending on motherboard, with dual-channel memory and ECC support. The i5 supports DDR3 only, with no ECC support and no recorded memory bus width.

PCIe and graphics: the Xeon has PCIe Gen 2 and no integrated graphics. The i5 has no recorded PCIe generation and includes Intel HD 5000 integrated graphics.

Market segment and release: the Xeon is a server/workstation part released in 2007, now end-of-life, with a launch MSRP of $915. The i5 is a mobile part released in 2013, with no launch MSRP recorded.

Where Each One Wins

The Xeon E5450 wins every recorded benchmark category. In multicore Cinebench R15, R20, and R23, it leads by 21.4% each time. In single-core Cinebench R20 and R23, it leads by 21.5% and 21.6% respectively. This makes it the clear choice for compute-heavy tasks such as rendering, compilation, or any workload that scales with raw CPU throughput, whether single-threaded or multi-threaded.

The i5-4250U wins in the categories that are not benchmark scores. Its 15 watt TDP is a massive advantage for mobile systems, allowing for thin laptops, fanless designs, and long battery life. The Xeon's 80 watt TDP requires active cooling and a substantial power delivery system. The i5 also includes Intel HD 5000 integrated graphics, so a system built around it does not need a discrete GPU for basic display output. The Xeon has no integrated graphics, so it requires a separate graphics card.

The i5's newer 22 nm process node and Haswell architecture bring efficiency improvements that the raw Cinebench scores do not capture. Its 1,400 million transistors on a 118 mm² die show a much denser, more modern design than the Xeon's 820 million transistors across two 107 mm² dies. For scenarios where power draw, heat output, and physical footprint are the primary constraints, the i5-4250U is the practical winner.

The Xeon wins on ECC memory support, a feature the i5 lacks entirely. That makes the Xeon the better fit for error-sensitive workloads like long-running server processes or data integrity tasks. Its dual-channel memory bus and support for both DDR2 and DDR3 give it flexibility on older server motherboards.

The Xeon also wins on raw clock speed. Its 3.00 GHz base clock is higher than the i5's 1.30 GHz base clock, and even the i5's 2.60 GHz boost clock does not close the gap in recorded tests. The Xeon's 4 physical cores provide an advantage in heavily threaded work that the i5's 2 cores with 4 threads cannot match, as shown by the consistent 21.4% multicore lead.

In short, the Xeon E5450 is the winner for performance-sensitive desktop and server workloads. The i5-4250U is the winner for power-sensitive mobile use cases where integrated graphics and low TDP matter more than benchmark scores. The head-to-head data does not show a single performance test where the i5 takes the lead, but its efficiency profile gives it a clear role in portable systems.