Intel Pentium G4600 vs Intel Xeon W3580 Comparison

Head-to-Head Benchmarks

The recorded benchmark data shows a remarkably consistent picture: the Intel Xeon W3580 wins every single head-to-head comparison against the Intel Pentium G4600, but by margins so narrow that the two processors are effectively interchangeable in raw compute output. Across all five Cinebench tests, the largest delta is just 1.1%, and the smallest is 0.6%.

In Cinebench R15 multicore, the Xeon W3580 scores 311 against the Pentium's 309, a 0.6% advantage. The R20 multicore test widens the gap slightly to 0.7%, with scores of 1298 and 1289 respectively. The single-core tests tell a similar story: in R20 single-core, the Xeon leads 183 to 181 (1.1%), while in R23 single-core, it leads 436 to 433 (0.7%). The R23 multicore result shows 3092 for the Xeon versus 3070 for the Pentium, again a 0.7% difference.

What these numbers mean in practical terms is that neither processor has a meaningful performance edge. A 0.6% to 1.1% delta is well within run-to-run variance for most benchmarking suites. The data indicates that for any given workload, users would be hard-pressed to notice a difference between these two chips without a stopwatch and a high-resolution frame counter. The Xeon W3580 technically claims all five wins, but the victory margins are statistically negligible.

The average benchmark scores reinforce this conclusion. The Xeon W3580 posts an average score of 1064, while the Pentium G4600 sits at 1056. That is a 0.8% difference in the aggregate. Both processors occupy the 29th percentile among all CPUs in the database, meaning they land in the same performance tier relative to the broader market. The nearest rivals for each chip confirm this positioning: the Xeon's closest competitor, the Intel Core i3-9100HL, scores 1065 (a 0.1% delta), while the Pentium's closest rival, the Intel Core i7-2760QM, scores 1057 (a 0.1% delta). Both chips are surrounded by similarly performing parts, and their head-to-head delta is smaller than the gaps between either chip and its own nearest rivals.

Architecture Differences

Despite their near-identical benchmark output, the two processors are architecturally generations apart. The Intel Xeon W3580 is built on the Nehalem architecture (codename Bloomfield) using a 45 nm process node. It packs 731 million transistors onto a 263 mm² die. The Pentium G4600, by contrast, uses the Kaby Lake architecture on a 14 nm process node. The database does not list transistor count or die size for the Pentium, but the process shrink alone represents a massive reduction in physical scale.

The core and thread configurations differ substantially. The Xeon W3580 provides 4 cores and 8 threads, while the Pentium G4600 offers only 2 cores and 4 threads. This is a 2x advantage in core count and thread count for the Xeon. Yet the benchmark results show that the Pentium's newer architecture and higher base clock compensate almost entirely for that deficit. The Xeon runs at a base clock of 3.33 GHz with a boost clock of 3.60 GHz, while the Pentium operates at a fixed 3.60 GHz with no boost clock listed. The Pentium's higher sustained clock speed, combined with the architectural efficiency gains from Kaby Lake, allows it to match the Xeon's extra cores.

Cache hierarchies also diverge. Both chips share the same L1 and L2 cache sizes per core: 64 KB and 256 KB respectively. The difference lies in L3 cache. The Xeon W3580 has 8 MB of shared L3 cache, while the Pentium G4600 has only 3 MB. That is a 5 MB advantage for the Xeon, which should theoretically help with larger working sets. However, the benchmark data suggests that this cache advantage does not translate into measurable performance gains in the Cinebench workloads tested.

Memory support is another differentiator. The Xeon W3580 supports DDR3 memory over a triple-channel memory bus. The Pentium G4600 supports DDR4 memory over a dual-channel bus, with a listed memory bandwidth of 38.4 GB/s. The Xeon's memory bandwidth is not listed in the database, so a direct comparison is not possible, but the shift from DDR3 to DDR4 represents a generational improvement in memory technology. The Xeon also supports ECC memory, while the Pentium does not, which is a meaningful distinction for server and workstation reliability use cases.

The platform differences are stark. The Xeon W3580 uses Intel Socket 1366, while the Pentium G4600 uses Intel Socket 1151. The Xeon is a server and workstation part, while the Pentium is a desktop processor. The Xeon has no integrated graphics, whereas the Pentium includes Intel HD 630 graphics. The PCIe support also differs: the Xeon offers Gen 2, while the Pentium offers Gen 3 with 16 lanes (CPU only). The Xeon's production status is end-of-life, while the Pentium remains active.

The Verdict

The data presents a clear but counterintuitive picture. The Xeon W3580 wins all five head-to-head benchmarks, but the margins are so small that the performance difference is effectively meaningless. Any user choosing between these two processors solely on compute performance would find no decisive factor. The Xeon's 4-core, 8-thread configuration and 8 MB of L3 cache do not overcome the Pentium's newer architecture, higher base clock, and more efficient 14 nm process.

The Pentium G4600 is the more practical choice for most desktop applications. It matches the Xeon's performance within 1% across every benchmark, offers integrated graphics, consumes significantly less power (51 W TDP versus 130 W TDP), supports newer DDR4 memory, and uses a modern socket with Gen 3 PCIe. The Xeon W3580, despite its extra cores and threads, cannot translate those resources into a measurable win.

The Xeon's remaining advantages are niche but real. It supports ECC memory, which the Pentium lacks, and it uses triple-channel DDR3 memory, which can provide higher aggregate bandwidth in memory-intensive server workloads. Its server and workstation market segment also implies different validation and reliability standards. For users who need ECC memory support or are building on a Socket 1366 platform, the Xeon W3580 remains a functional choice. For everyone else, the Pentium G4600 delivers the same performance with a more modern feature set.

Specification Differences

The two processors differ in nearly every specification category, with the exception of manufacturer (both Intel), L1 and L2 cache sizes per core (both 64 KB and 256 KB respectively), and multiplier unlock status (both locked).

• Cores: Xeon W3580 has 4, Pentium G4600 has 2
• Threads: Xeon W3580 has 8, Pentium G4600 has 4
• Base clock: Xeon W3580 runs at 3.33 GHz, Pentium G4600 at 3.60 GHz
• Boost clock: Xeon W3580 boosts to 3.60 GHz, Pentium G4600 has no boost clock
• TDP: Xeon W3580 draws 130 W, Pentium G4600 draws 51 W
• Socket: Xeon W3580 uses Socket 1366, Pentium G4600 uses Socket 1151
• Architecture: Xeon W3580 uses Nehalem (Bloomfield), Pentium G4600 uses Kaby Lake
• Process node: Xeon W3580 uses 45 nm, Pentium G4600 uses 14 nm
• Transistors: Xeon W3580 has 731 million, Pentium G4600 has no listed count
• Die size: Xeon W3580 measures 263 mm², Pentium G4600 has no listed size
• L3 cache: Xeon W3580 has 8 MB shared, Pentium G4600 has 3 MB shared
• Memory support: Xeon W3580 uses DDR3, Pentium G4600 uses DDR4
• Memory bus: Xeon W3580 uses triple-channel, Pentium G4600 uses dual-channel
• Memory bandwidth: Xeon W3580 has no listed value, Pentium G4600 has 38.4 GB/s
• ECC memory: Xeon W3580 supports it, Pentium G4600 does not
• PCIe: Xeon W3580 uses Gen 2, Pentium G4600 uses Gen 3 with 16 lanes (CPU only)
• Integrated graphics: Xeon W3580 has none, Pentium G4600 has Intel HD 630
• Market segment: Xeon W3580 targets server and workstation, Pentium G4600 targets desktop
• Production status: Xeon W3580 is end-of-life, Pentium G4600 is active
• Release date: Xeon W3580 launched in 2009, Pentium G4600 in 2017
• Part number: Xeon W3580 is SLBET, Pentium G4600 is SR35F

FAQ

Q: Which processor has more cores?

A: The Intel Xeon W3580 has 4 cores and 8 threads, while the Intel Pentium G4600 has 2 cores and 4 threads.

Q: Does the Pentium G4600 have integrated graphics?

A: Yes, the Pentium G4600 includes Intel HD 630 graphics. The Xeon W3580 has no integrated graphics.

Q: Which processor supports ECC memory?

A: The Xeon W3580 supports ECC memory. The Pentium G4600 does not support ECC memory.

Q: What is the performance difference in Cinebench R23 multicore?

A: The Xeon W3580 scores 3092, and the Pentium G4600 scores 3070, giving the Xeon a 0.7% advantage.

Q: Which processor uses DDR4 memory?

A: The Pentium G4600 uses DDR4 memory, while the Xeon W3580 uses DDR3 memory.

Q: How do their average benchmark scores compare?

A: The Xeon W3580 has an average benchmark score of 1064, and the Pentium G4600 has an average score of 1056. Both sit at the 29th percentile among all CPUs.

Where Each One Wins

The Xeon W3580 wins all five head-to-head benchmarks, but the margins are tiny. Its wins come from the Cinebench multicore tests, where its 4-core, 8-thread configuration provides a slight edge over the Pentium's 2-core, 4-thread setup. The largest win is in Cinebench R20 single-core, where the Xeon leads by 1.1%. The Xeon also wins in the three other tests by margins between 0.6% and 0.7%. Beyond raw scores, the Xeon's advantages include ECC memory support, triple-channel memory, and a larger 8 MB L3 cache. These features make it the appropriate choice for memory-sensitive server or workstation workloads where data integrity matters more than raw speed.

The Pentium G4600 wins zero benchmarks, yet it is the more compelling overall package. Its wins are architectural and practical rather than score-based. The 14 nm process node makes it far more power-efficient, with a 51 W TDP compared to the Xeon's 130 W. Its 3.60 GHz base clock exceeds the Xeon's 3.33 GHz base clock, and it supports faster DDR4 memory with listed bandwidth of 38.4 GB/s. The integrated Intel HD 630 graphics eliminate the need for a discrete GPU in basic desktop builds. The modern Socket 1151 platform with Gen 3 PCIe offers broader compatibility with current components. The Pentium is the sensible pick for standard desktop use, media systems, and everyday computing, where its performance parity with the Xeon comes with lower power draw and newer platform features. The data shows no scenario where the Xeon's benchmark wins translate into a tangible user experience advantage, so the Pentium's feature set makes it the stronger recommendation for most workloads.