Intel Core 5 120UL vs Intel Xeon 6756E Comparison

Where Each One Wins

The benchmark data splits these two processors into clearly distinct roles. The Intel Xeon 6756E dominates in 13 of the 17 head-to-head comparisons, with its largest advantages appearing in workloads that reward massive parallel throughput. The Intel Core 5 120UL takes 4 wins, all in math-oriented single-threaded or lightly threaded tasks where its higher boost clock and newer core design matter more than core count.

The Xeon 6756E wins every Cinebench test by a narrow but consistent margin. In Cinebench R15 multicore, it scores 980 versus 904, a delta of 8.4%. The single-core results show a similar pattern: 138 versus 127 in R15 single-core, an 8.7% edge. These margins repeat across R20 and R23, with the Xeon leading by 8.4% to 8.5% in each case. This consistency suggests the Xeon's advantage comes from sustained throughput rather than any single architectural feature.

The Xeon also wins in data compression, encryption, extended instructions, prime number finding, multithreaded PassMark, physics, and random string sorting. Its most extreme win is in find prime numbers, where it scores 133 against the Core 5's 47, a 183% delta. Physics shows an 81.3% lead at 1463 versus 807. Extended instructions come in at 26.8% ahead (6596 versus 5203). Data compression is 13.2% better (123443 versus 109090), and random string sorting is 16.4% ahead (15847 versus 13610). Encryption shows a 9.4% edge (8409 versus 7685), and multithreaded PassMark is 8.4% higher (11445 versus 10558).

The Core 5 120UL wins in floating point math, integer math, and single-threaded PassMark. Its floating point score is 26311 against 22451, a 14.7% advantage. Integer math shows 38060 versus 30806, a 19.1% lead. Single-threaded PassMark is 2080 versus 1646, a 20.9% edge. These are not minor wins; the Core 5 is substantially faster in these specific workloads. However, the Xeon's overall average benchmark score of 14163 versus 13594 for the Core 5 indicates the Xeon holds a 4.2% aggregate advantage across all recorded tests.

The percentile rankings place both processors at the 68th percentile among all CPUs in the database. This means they land in the same performance tier overall, despite their very different core counts and power envelopes. The nearest rivals for the Xeon include the Intel Core i5-10400F (average score 14185, delta of -0.2%), AMD EPYC 7552 (14115, +0.3%), Intel Core 7 160UL (14232, -0.5%), and AMD Ryzen 3 7320C (14277, -0.8%). The Core 5's nearest rivals are the Intel Core i3-12100F (13494, +0.7%), Intel Core 3 N355 (13492, +0.8%), Intel Core i5-9500 (13452, +1.1%), and Intel Core 3 304 (13745, -1.1%). The Xeon sits within 1% of four different processors spanning desktop and server lines, while the Core 5 sits within 1.1% of its four rivals.

The Verdict

The data points to a straightforward conclusion for most buyers. The Xeon 6756E is the choice for workloads that scale across many cores, especially server-side tasks like data compression, encryption, and physics calculations. Its wins in all Cinebench versions and the multithreaded PassMark test confirm it handles sustained parallel loads better. The prime number result is particularly telling: a 183% advantage shows the Xeon's architecture excels at integer-heavy, highly parallel operations.

The Core 5 120UL is the pick for desktop use cases where single-threaded speed and math throughput matter more than core count. Its 20.9% lead in single-threaded PassMark and 19.1% lead in integer math suggest it will feel snappier in everyday applications that do not fully utilize many cores. The floating point advantage of 14.7% also makes it relevant for certain scientific or media workloads that rely on floating point calculations.

For a server or workstation environment, the Xeon's 128 cores and 128 threads provide a clear scaling advantage. The data shows it wins 13 of 17 tests, and its losses are in areas where a 10-core processor with a 4.60 GHz boost clock can leverage higher per-core frequency. The Core 5's 15W TDP versus the Xeon's 225W TDP is a factor for deployment scenarios, though the benchmark scores do not directly capture power efficiency.

For a desktop or low-power system, the Core 5's integrated Iris Xe Graphics 80EU adds functionality the Xeon lacks entirely, since the Xeon has no integrated graphics. The Core 5 also supports both DDR4 and DDR5 memory, whereas the Xeon is limited to DDR5. These platform differences reinforce the use-case split: the Xeon targets dedicated server hardware, while the Core 5 targets desktop boards with broader memory compatibility.

Head-to-Head Benchmarks

The largest single margin in the entire comparison belongs to the Xeon in the find prime numbers test. The Xeon scores 133, the Core 5 scores 47, and the delta is 183%. This is not a close contest; the Xeon is nearly three times faster. The physics test shows the second-largest gap at 81.3%, with scores of 1463 and 807. Both results reflect the Xeon's ability to distribute work across its 128 threads far more effectively than the Core 5's 12 threads.

The extended instructions test gives the Xeon a 26.8% win at 6596 versus 5203. Random string sorting shows a 16.4% edge (15847 versus 13610), and data compression comes in at 13.2% (123443 versus 109090). These are all throughput-oriented workloads where the Xeon's 96 MB of shared L3 cache and 4 MB per module L2 cache help keep many cores fed. The Xeon also wins data encryption by 9.4% (8409 versus 7685), which aligns with its server positioning.

The Cinebench results are notable for their uniformity. Across R15, R20, and R23, both multicore and single-core tests show the Xeon winning by 8.4% to 8.7%. The margins are nearly identical regardless of test version or core count sensitivity. This suggests the Xeon's per-core performance is slightly higher than the Core 5's in the Cinebench rendering workload, even though the Core 5 has a much higher boost clock of 4.60 GHz versus 2.60 GHz. The Xeon's base clock of 1.80 GHz is also higher than the Core 5's 1.30 GHz, which may contribute to its consistent edge in these tests.

The Core 5's wins are concentrated in PassMark math tests. Single-threaded PassMark shows the Core 5 ahead by 20.9% (2080 versus 1646). Integer math shows a 19.1% lead (38060 versus 30806), and floating point math shows a 14.7% lead (26311 versus 22451). These tests reward high clock speeds and efficient per-core execution, areas where the Core 5's Raptor Lake architecture with a 4.60 GHz boost excels despite having only 10 cores.

The multithreaded PassMark test falls to the Xeon at 11445 versus 10558, an 8.4% margin. This is consistent with the Cinebench multicore results. The Xeon's overall average benchmark score of 14163 versus 13594 gives it a 4.2% total advantage, which matches its 13-to-4 win count in individual tests.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Xeon 6756E has 128 cores and 128 threads, while the Intel Core 5 120UL has 10 cores and 12 threads. The Xeon has no hyper-threading (128 threads equals 128 cores), whereas the Core 5 supports hyper-threading (12 threads from 10 cores).

Q: How does the Xeon 6756E perform in Cinebench R23 multicore versus the Core 5 120UL?

A: The Xeon scores 9728 in Cinebench R23 multicore, while the Core 5 scores 8974. The Xeon wins by 8.4%. The same 8.4% margin appears in Cinebench R15 and R20 multicore tests.

Q: Which processor wins in single-threaded performance?

A: The Intel Core 5 120UL wins in PassMark single-threaded tests with a score of 2080 versus 1646 for the Xeon, a 20.9% advantage. However, the Xeon wins all Cinebench single-core tests by 8.5% to 8.7% (for example, 1373 versus 1266 in Cinebench R23 single-core).

Q: What memory types does each processor support?

A: The Xeon 6756E supports DDR5 memory only, with an eight-channel memory bus and 409.6 GB/s bandwidth. The Core 5 120UL supports both DDR4 and DDR5, with a dual-channel memory bus and no listed bandwidth figure. The Xeon also supports ECC memory, while the Core 5 does not.

Q: Does either processor include integrated graphics?

A: The Intel Core 5 120UL includes Iris Xe Graphics 80EU. The Intel Xeon 6756E has no integrated graphics, listed as N/A.

Q: How do the two processors compare in data encryption performance?

A: The Xeon 6756E scores 8409 in PassMark data encryption, while the Core 5 120UL scores 7685. The Xeon wins by 9.4%. This test is part of the Xeon's broader pattern of wins in server-oriented workloads.

Architecture Differences

The two processors come from fundamentally different Intel architectures. The Xeon 6756E uses the Sierra Forest architecture on a 5 nm process node, with a die size of 578 mm². It is part of the Xeon 6 generation (Sierra Forest-SP) and targets the server and workstation market segment. The Core 5 120UL uses the Raptor Lake architecture on a 10 nm process node, belongs to the Core 5 generation (Raptor Lake-PS), and targets the desktop segment.

The core configurations differ dramatically. The Xeon has 128 cores and 128 threads, with a base clock of 1.80 GHz and a boost clock of 2.60 GHz. The Core 5 has 10 cores and 12 threads, with a base clock of 1.30 GHz and a boost clock of 4.60 GHz. The Core 5's boost clock is nearly double the Xeon's, which explains its wins in single-threaded and math-heavy tests. The Xeon's core count is more than twelve times higher, which explains its dominance in parallel workloads.

Cache hierarchies reflect the different design goals. The Xeon provides 96 KB of L1 cache per core, 4 MB of L2 cache per module, and 96 MB of shared L3 cache. The Core 5 provides 80 KB of L1 cache per core, 1.25 MB of L2 cache per core, and 12 MB of shared L3 cache. The Xeon's larger L3 cache (96 MB versus 12 MB) supports its many-core design, while the Core 5's per-core L2 allocation is higher relative to its core count.

Memory support also diverges sharply. The Xeon uses DDR5 memory with an eight-channel bus and 409.6 GB/s bandwidth, plus ECC support. The Core 5 uses DDR4 or DDR5 with a dual-channel bus, no listed bandwidth, and no ECC support. The Xeon's eight-channel memory subsystem is essential for feeding 128 cores, while the Core 5's dual-channel setup suffices for a 10-core desktop part.

PCIe connectivity shows the server-versus-desktop split. The Xeon provides Gen 5 with 88 lanes (CPU only), while the Core 5 provides Gen 4 with 8 lanes (CPU only). The Xeon's 88 lanes support high-bandwidth peripherals like GPUs and NVMe drives in server configurations, whereas the Core 5's 8 lanes are typical for desktop expansion.

Power and physical specifications differ substantially. The Xeon has a 225W TDP and uses Intel Socket 4710, while the Core 5 has a 15W TDP and uses Intel Socket 1700. The Xeon's release date is 2024-06-02 with a launch MSRP of $8428, while the Core 5's release date is 2024-04-07 with no listed launch MSRP. Neither processor has an unlocked multiplier, so overclocking is not supported on either part.

The Xeon's part number is SRPFX, while the Core 5's part number is listed as unknown. Both processors are currently marked as Active in production status. The Xeon's integrated graphics is N/A, while the Core 5 includes Iris Xe Graphics 80EU, making the Core 5 a self-contained desktop solution while the Xeon requires a discrete GPU for display output.