Intel Core i7-3537U vs Intel Xeon E5450 Comparison

The Intel Core i7-3537U and the Intel Xeon E5450 occupy different corners of the processor market, yet their benchmark scores place them in a similar performance class. The i7-3537U is a dual-core mobile part from the Ivy Bridge generation, designed for thin laptops with low power draw. The Xeon E5450 is a quad-core server and workstation processor from the earlier Core 2 era, built for sustained throughput in professional environments. The recorded data shows a consistent, though modest, advantage for the Xeon across every tested workload, but the two chips differ so fundamentally in architecture, platform, and purpose that raw score comparisons only tell part of the story.

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Core i7-3537U has an average benchmark score of 766, while the Intel Xeon E5450 has an average of 756. The i7-3537U sits in the 21st percentile of all CPUs, and the Xeon E5450 sits in the 20th percentile.

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

A: The Intel Xeon E5450 wins all multi-core tests. In Cinebench R15 multi-core, it scores 221 versus 201 for the i7-3537U, a 9% difference. In Cinebench R20 multi-core, the Xeon scores 923 versus 839, and in Cinebench R23 multi-core, it scores 2198 versus 1998, both roughly 9% ahead.

Q: Which processor has the higher single-core score?

A: The Intel Xeon E5450 also leads in single-core tests. It scores 130 in Cinebench R20 single-core versus 118 for the i7-3537U, and 310 in Cinebench R23 single-core versus 282, representing differences of about 9% in each case.

Q: Are the two processors from the same architectural generation?

A: No. The Intel Core i7-3537U is built on the Ivy Bridge architecture with a 22 nm process node, released in January 2013. The Intel Xeon E5450 is based on the Core 2 architecture with the Harpertown codename, uses a 45 nm process, and was released in November 2007.

Q: Do both processors support ECC memory?

A: No. The Intel Xeon E5450 supports ECC memory, while the Intel Core i7-3537U does not. The Xeon also supports both DDR2 and DDR3 memory depending on the motherboard, whereas the i7-3537U supports DDR3 only.

Q: What are the nearest rivals for each processor in the database?

A: The closest competitor to the i7-3537U is the AMD A8-6600K with an average score of 764, just 0.3% behind. For the Xeon E5450, the Intel Core i5-4250U matches its average score of 756 exactly, with a 0% difference.

Architecture Differences

The two processors come from distinct Intel microarchitectures separated by several generations of design work. The Core i7-3537U uses the Ivy Bridge architecture, built on a 22 nm process node with a die size of 118 mm². The Xeon E5450 uses the Core 2 architecture under the Harpertown codename, fabricated on a 45 nm process with a dual-die layout totaling 2x 107 mm² and 820 million transistors. The process node difference alone explains a large part of the efficiency gap between them: the i7-3537U draws 17 watts, while the Xeon E5450 draws 80 watts.

Core counts also differ. The i7-3537U has 2 physical cores and 4 threads, relying on Hyper-Threading to reach that thread count. The Xeon E5450 has 4 physical cores and 4 threads, with no Hyper-Threading. This means the Xeon has double the physical core count, but the i7 has the ability to process two threads per core. Cache hierarchies reflect the generation gap. The i7-3537U has 64 KB of L1 cache per core, 256 KB of L2 cache per core, and 4 MB of shared L3 cache. The Xeon E5450 has 64 KB of L1 cache per core and 6 MB of L2 cache per die, with no L3 cache at all.

The integrated graphics situation is also a clear separator. The i7-3537U includes Intel HD 4000 graphics, making it a complete package for a laptop where a discrete GPU is not required. The Xeon E5450 has no integrated graphics, which is typical for a server or workstation part that expects a dedicated graphics card. The memory controllers differ as well. The i7-3537U supports DDR3 over a dual-channel bus, while the Xeon E5450 supports both DDR2 and DDR3 depending on the motherboard, also over a dual-channel bus. The Xeon additionally supports ECC memory, which the i7 does not.

Clock speeds show a different design philosophy. The i7-3537U has a base clock of 2.00 GHz and a boost clock of 3.20 GHz, allowing it to ramp up under load. The Xeon E5450 has a fixed base clock of 3.00 GHz with no boost capability. The i7 relies on dynamic frequency scaling to balance performance against its 17 watt thermal envelope, while the Xeon runs at a constant 3.00 GHz and uses its higher 80 watt budget to sustain that rate. The market segments reinforce this split: the i7-3537U is a mobile processor, while the Xeon E5450 is a server and workstation part that has reached end-of-life status.

Head-to-Head Benchmarks

The head-to-head data covers five benchmark tests, and the Xeon E5450 wins all five. The margins are consistent, sitting around 9% in every workload. In Cinebench R15 multi-core, the Xeon scores 221 against 201 for the i7-3537U, a 9% advantage. In Cinebench R20 multi-core, the Xeon scores 923 against 839, a 9.1% lead. The single-core tests follow the same pattern: 130 versus 118 in Cinebench R20 single-core, a 9.2% difference, and 310 versus 282 in Cinebench R23 single-core, a 9% difference.

The most striking aspect of these results is the gap in single-core performance. The Xeon E5450 is a 45 nm part from 2007, yet it beats the newer 22 nm mobile chip in single-threaded work by about 9%. This is likely due to its higher base clock of 3.00 GHz. The i7-3537U can boost up to 3.20 GHz, but its sustained base clock is only 2.00 GHz, and mobile thermal limits may prevent it from holding high boost frequencies for long periods. The Xeon has no boost mechanism, but it does not need one; its fixed 3.00 GHz clock is already higher than the i7's base and close to its boost.

Multi-core results are closer to what the specifications would suggest. The Xeon has four physical cores against the i7's two, so it should have an advantage in parallel work. The data shows that advantage is around 9% across both Cinebench R15 and R20 multi-core tests. The i7's Hyper-Threading helps it close some of the gap, but with half the physical cores, it cannot fully match the Xeon in threaded rendering tasks. In Cinebench R23 multi-core, the Xeon scores 2198 versus 1998, again a 9.1% difference.

The single-core tests are notable because they show the Xeon winning by roughly the same margin as the multi-core tests. This suggests that clock speed, not core count, is the dominant factor in these benchmarks. The Xeon's 3.00 GHz base clock gives it a consistent advantage over the i7's 2.00 GHz base, even when the i7's boost clock is taken into account. The i7-3537U does close the gap in some tests relative to its lower power budget, but it never overtakes the Xeon.

The database shows that the Xeon E5450 wins 5 out of 5 head-to-head benchmarks, with no wins recorded for the i7-3537U. The average scores for the two chips are very close overall, 766 for the i7 and 756 for the Xeon, but the head-to-head tests all favor the Xeon. This is an unusual pattern: the i7 has a slightly higher average score across all database entries, yet loses every direct comparison in the head-to-head set. The difference likely comes from the benchmark mix, as the head-to-head tests are all Cinebench variants.

Specification Differences

The two processors differ across nearly every specification category. The Core i7-3537U has 2 cores and 4 threads, while the Xeon E5450 has 4 cores and 4 threads. Base clocks are 2.00 GHz for the i7 and 3.00 GHz for the Xeon. The i7 has a boost clock of 3.20 GHz, while the Xeon has no boost clock. Thermal design power is 17 watts for the i7 and 80 watts for the Xeon. The i7 uses the Intel BGA 1023 socket, while the Xeon uses Intel Socket 771.

The process node is 22 nm for the i7 and 45 nm for the Xeon. The i7 has a die size of 118 mm², while the Xeon has a dual-die design totaling 2x 107 mm². The Xeon is the only one of the two with a listed transistor count, at 820 million. Cache configurations differ as well: the i7 has 64 KB of L1 per core, 256 KB of L2 per core, and 4 MB of shared L3, while the Xeon has 64 KB of L1 per core and 6 MB of L2 per die, with no L3.

Memory support diverges on ECC and type. The i7 supports DDR3 only, while the Xeon supports DDR2 and DDR3 depending on the motherboard. Both use dual-channel memory buses. ECC memory is supported by the Xeon but not by the i7. The i7 includes Intel HD 4000 integrated graphics, while the Xeon has none. The Xeon supports PCIe Gen 2, while the i7 has no PCIe generation listed. The i7 was released in January 2013, and the Xeon in November 2007. The Xeon has a launch MSRP of $915, while the i7 has no recorded launch price. Neither processor has an unlocked multiplier. The i7 is classified as a mobile part, and the Xeon as a server and workstation part. The Xeon is marked as end-of-life, while the i7 has no production status listed.

Where Each One Wins

The Xeon E5450 wins every benchmark in the head-to-head comparison, so its strengths are straightforward. It leads in multi-core rendering by about 9% in Cinebench R15, R20, and R23. It also leads in single-core tests by the same margin. The Xeon's higher fixed clock speed of 3.00 GHz, combined with four physical cores, gives it a consistent edge in all measured workloads. For any task that relies on CPU rendering, the data shows the Xeon is the faster part.

The i7-3537U does not win any head-to-head benchmark, but its advantages lie outside raw performance. It has a much lower thermal design power of 17 watts versus 80 watts for the Xeon, making it suitable for thin and light mobile systems. It includes integrated graphics, so a system using the i7 does not require a separate GPU. Its 22 nm process node and newer architecture provide efficiency benefits. The i7 also has a higher average benchmark score in the database at 766, though this includes benchmarks beyond the head-to-head set.

Use-case separation is clear. The Xeon E5450 is for server and workstation environments where sustained multi-threaded performance matters, ECC memory support is required, and power consumption is less of a concern. The i7-3537U is for mobile computing where low power draw and integrated graphics are priorities. A laptop with the i7 can run on battery power and handle light to moderate workloads. A workstation with the Xeon can process rendering jobs and server workloads, but it needs a dedicated graphics card and a platform that supports Socket 771.

The percentile rankings reinforce the close overall performance. The i7 sits in the 21st percentile and the Xeon in the 20th percentile of all CPUs in the database. Their nearest rivals are similarly matched: the i7's closest competitor is the AMD A8-6600K with an average score of 764, just 0.3% lower, and the Xeon's closest rival is the Intel Core i5-4250U with an identical average score of 756. Both processors are mid-pack performers by modern standards, but the Xeon holds a narrow edge in the specific tests recorded.

The Verdict

The data supports a simple conclusion for raw performance: the Intel Xeon E5450 is the faster processor. It wins all five head-to-head benchmarks, with margins between 9% and 9.2% across multi-core and single-core Cinebench tests. Its four physical cores and 3.00 GHz base clock give it a decisive advantage over the dual-core i7-3537U with its 2.00 GHz base clock. The Xeon also offers ECC memory support, which matters for server and workstation reliability.

The Intel Core i7-3537U is the better choice for a different set of requirements. Its 17 watt thermal design power, integrated Intel HD 4000 graphics, and modern 22 nm Ivy Bridge architecture make it appropriate for mobile systems where battery life and compact design take priority over peak performance. It loses every head-to-head test, but it does so by a consistent single-digit margin, which is notable given its much lower power envelope. The i7 also has a slightly higher average benchmark score of 766 versus 756 for the Xeon.

Users who need maximum rendering throughput in the recorded benchmarks should select the Xeon E5450. Users who need an efficient mobile processor with built-in graphics should select the Core i7-3537U. The two parts are not direct competitors in the market, and the choice should be driven by platform and workload requirements. The Xeon is end-of-life, so availability may be a factor, though the database does not record current market status beyond that designation. Neither processor is unlocked, and both use different sockets, so the motherboard determines which one can be installed. The Xeon carries a launch MSRP of $915, while no launch price is recorded for the i7.