Intel Pentium G4400 vs Intel Xeon E5450 Comparison

Head-to-Head Benchmarks

The recorded benchmark data shows a clear and consistent pattern: the Intel Xeon E5450 wins every single head-to-head comparison against the Intel Pentium G4400. Across five Cinebench tests, the Xeon E5450 maintains a lead between 18.1% and 18.3% over the Pentium. The single-core results are particularly telling, as the Pentium G4400 has a higher base clock (3.30 GHz versus 3.00 GHz) yet still trails the older server chip.

In Cinebench R15 multi-core, the Xeon E5450 scores 221 against the Pentium's 187, a delta of 18.2%. The same 18.2% margin appears in Cinebench R20 multi-core, where the Xeon posts 923 versus 781. For single-core workloads in Cinebench R20, the Xeon scores 130, the Pentium 110, again an 18.2% gap. Cinebench R23 shows the narrowest margin at 18.1% in multi-core (2198 versus 1861) and the widest at 18.3% in single-core (310 versus 262).

The Pentium's higher base clock does not translate into any benchmark victory. The Xeon's architecture, despite its older Core 2 lineage, sustains a decisive advantage in every measured workload. The wins tally is 5 for the Xeon E5450 and 0 for the Pentium G4400. This is not a close contest; the delta percentages are tightly clustered, indicating that the Xeon's advantage is consistent across both single-threaded and multi-threaded Cinebench tests.

The average benchmark scores corroborate the head-to-head results. The Xeon E5450 holds an average benchmark score of 756, while the Pentium G4400 sits at 740. The Xeon's nearest rivals in the database include the Intel Core i5-4250U at 756 (0% delta) and the Intel Core i3-5020U at 757 (-0.2% delta). The Pentium's nearest rivals include the Intel Core i7-860S at 740 (0% delta) and the Intel Core i5-670 at 741 (-0.1% delta). Both processors rank at the 20th percentile among all CPUs, placing them in the same overall performance tier despite the Xeon's clear head-to-head superiority.

The Verdict

The data indicates that the Intel Xeon E5450 is the superior processor for compute-bound applications. It wins all five head-to-head benchmarks by roughly 18% across the board. This lead is uniform: single-core Cinebench R23 shows 18.3%, multi-core Cinebench R23 shows 18.1%, and the other three tests all show 18.2%. There is no workload category in the recorded results where the Pentium G4400 pulls ahead.

Buyers should choose the Xeon E5450 if they need maximum multi-threaded throughput from these two options. Its four cores and four threads, combined with 6 MB of L2 cache per die, deliver consistently higher Cinebench scores. The Xeon also supports ECC memory, a feature absent from the Pentium, and targets the server/workstation segment. Its launch MSRP was $915.

The Pentium G4400 is the choice only if the newer platform matters more than raw compute. It uses the Socket 1151 interface, supports DDR3 and DDR4 memory, includes integrated Intel HD 510 graphics, and runs on a 14 nm process with a 51 W TDP. It also consumes less power and has a higher base clock. However, in every measured benchmark, the Pentium finishes behind the Xeon. The Pentium's only recorded advantage is its Geekbench scores: 1192 multi-core and 784 single-core. The Xeon has no Geekbench entries in the database, so those figures cannot be compared directly.

For users prioritizing the benchmark results, the Xeon E5450 is the unambiguous winner. For users prioritizing platform modernity, integrated graphics, and lower power draw, the Pentium G4400 offers those features but with a measurable performance penalty. The database shows no scenario where the Pentium outperforms the Xeon in a shared test.

Architecture Differences

The two processors come from vastly different architectural eras. The Intel Xeon E5450 uses the Core 2 architecture, codenamed Harpertown, built on a 45 nm process at Intel's foundry. It packs 820 million transistors across a die size of 2x 107 mm². The Pentium G4400 uses the Skylake architecture, also codenamed Skylake, built on a 14 nm process. It integrates 1,400 million transistors on a single 150 mm² die.

The Xeon's cache hierarchy is split by die: each die has 6 MB of L2 cache, with 64 KB of L1 per core, and no L3 cache. The Pentium has a simpler layout: 64 KB of L1 per core, 256 KB of L2 per core, and 4 MB of shared L3 cache. The Xeon's dual-die design reflects its server heritage, while the Pentium's unified L3 cache is typical of modern desktop designs.

Process node differences are stark. The 45 nm Xeon is nearly three generations behind the 14 nm Pentium. Despite this, the Xeon's larger transistor count (820 million versus 1,400 million) and dual-die layout allow it to maintain a performance lead. The Pentium compensates with a higher base clock (3.30 GHz versus 3.00 GHz) and a smaller manufacturing process, but the benchmark data shows this is insufficient to overcome the Xeon's core advantage.

Memory support also differs fundamentally. The Xeon supports DDR2 and DDR3, depending on the motherboard, with dual-channel memory bus. The Pentium supports DDR3 and DDR4, also dual-channel, with a recorded memory bandwidth of 34.1 GB/s. The Xeon has no recorded memory bandwidth figure. ECC memory is supported on the Xeon but not on the Pentium.

PCIe generations differ: the Xeon uses Gen 2, while the Pentium uses Gen 3 with 16 lanes (CPU only). The Pentium includes integrated Intel HD 510 graphics; the Xeon has no integrated graphics. The Xeon targets the server/workstation market segment, the Pentium targets desktop. The Xeon's socket is Intel Socket 771, the Pentium's is Intel Socket 1151.

Specification Differences

The two processors differ in several key specification fields. The Xeon E5450 has 4 cores and 4 threads; the Pentium G4400 has 2 cores and 2 threads. Base clocks differ: the Xeon runs at 3.00 GHz, the Pentium at 3.30 GHz. Neither has a boost clock.

Thermal design power differs substantially: the Xeon is rated at 80 W, the Pentium at 51 W. The process node gap is 45 nm versus 14 nm. Transistor counts are 820 million versus 1,400 million. Die size is 2x 107 mm² versus 150 mm².

Cache configurations differ: the Xeon has 64 KB L1 per core and 6 MB L2 per die, with no L3. The Pentium has 64 KB L1 per core, 256 KB L2 per core, and 4 MB shared L3. Memory support: the Xeon uses DDR2/DDR3 depending on motherboard, the Pentium uses DDR3/DDR4. Memory bandwidth is recorded only for the Pentium at 34.1 GB/s.

ECC memory is available on the Xeon, not on the Pentium. PCIe generation is Gen 2 for the Xeon, Gen 3 with 16 lanes for the Pentium. Integrated graphics: none on the Xeon, Intel HD 510 on the Pentium. Market segment: server/workstation for the Xeon, desktop for the Pentium. Production status: end-of-life for the Xeon, active for the Pentium. Release dates: the Xeon launched in November 2007, the Pentium in August 2015. The Xeon has a recorded launch MSRP of $915; the Pentium has no launch MSRP in the database. Neither processor has an unlocked multiplier.

FAQ

Q: Which processor wins the most benchmarks?

A: The Intel Xeon E5450 wins all five head-to-head Cinebench tests against the Pentium G4400. The wins tally is 5 for the Xeon, 0 for the Pentium.

Q: What is the largest performance gap between the two?

A: The largest recorded delta is 18.3% in Cinebench R23 single-core, where the Xeon scores 310 versus the Pentium's 262.

Q: Does the Pentium's higher base clock help it win any test?

A: No. The Pentium runs at 3.30 GHz versus the Xeon's 3.00 GHz, but it loses every shared benchmark. The narrowest margin is 18.1% in Cinebench R23 multi-core.

Q: Which processor supports ECC memory?

A: The Intel Xeon E5450 supports ECC memory. The Intel Pentium G4400 does not support ECC memory.

Q: Which processor has integrated graphics?

A: The Intel Pentium G4400 includes Intel HD 510 integrated graphics. The Intel Xeon E5450 has no integrated graphics.

Q: How do their average benchmark scores compare?

A: The Xeon E5450 has an average benchmark score of 756, while the Pentium G4400 has an average score of 740. Both rank at the 20th percentile among all CPUs.