Core i5-6442EQ vs Xeon X5647

PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

Core i5-6442EQ

2015

Why buy it

✅+0.9% higher PassMark.
✅Draws 25W instead of 130W, a 105W reduction.

Trade-offs

❌Smaller total L3 cache (6 MB vs 12 MB).
❌Less compelling for workstation-style loads than Xeon X5647, which brings 4 cores / 8 threads.
❌Launch MSRP is still $250 MSRP, while Xeon X5647 mostly shows up through inconsistent older-market listings.

Xeon X5647

2011

Why buy it

✅+100% larger total L3 cache (12 MB vs 6 MB).
✅Better for workstations and heavier parallel workloads: 4 cores / 8 threads.

Trade-offs

❌Lower PassMark (4,441 vs 4,483).
❌420% higher power demand at 130W vs 25W.

Core i5-6442EQ

2015

Xeon X5647

2011

Why buy it

✅+0.9% higher PassMark.
✅Draws 25W instead of 130W, a 105W reduction.

Why buy it

✅+100% larger total L3 cache (12 MB vs 6 MB).
✅Better for workstations and heavier parallel workloads: 4 cores / 8 threads.

Trade-offs

❌Smaller total L3 cache (6 MB vs 12 MB).
❌Less compelling for workstation-style loads than Xeon X5647, which brings 4 cores / 8 threads.
❌Launch MSRP is still $250 MSRP, while Xeon X5647 mostly shows up through inconsistent older-market listings.

Trade-offs

❌Lower PassMark (4,441 vs 4,483).
❌420% higher power demand at 130W vs 25W.

Quick Answers

So, is Core i5-6442EQ better than Xeon X5647?

Not in a simple one-size-fits-all way. Xeon X5647 makes more sense for workstation-style multi-core throughput, while Core i5-6442EQ is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Core i5-6442EQ is the better fit. You are getting 0.9% better PassMark, backed by 4 cores and 4 threads.

Which one is the smarter buy today, not just the cheaper CPU?

Core i5-6442EQ is the smarter buy today. Core i5-6442EQ is at an unclear MSRP at $250 MSRP versus unclear MSRP, and it gives you 0.9% better PassMark. The trade-off is that Xeon X5647 is still the better pure gaming CPU with a 2.4% average FPS lead across 3 shared CPU game tests in our data. It is also 100.0% better value on MSRP (17.9 vs 0.0 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

Which one is more future-proof for 2026 and beyond?

Core i5-6442EQ is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2015 vs 2011) and more multi-core headroom with 4 cores / 4 threads instead of 4/8. That extra compute headroom should age better as games, background tasks, and creator workloads get heavier.

Games Benchmarks

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Core i5-6442EQ Benchmark Check

Xeon X5647 Benchmark Check

Path of Exile 2

Preset	Core i5-6442EQ	Xeon X5647
1080p
low	112 FPS	111 FPS
medium	112 FPS	111 FPS
high	103 FPS	103 FPS
ultra	79 FPS	84 FPS
1440p
low	112 FPS	111 FPS
medium	111 FPS	110 FPS
high	86 FPS	85 FPS
ultra	67 FPS	69 FPS
4K
low	66 FPS	61 FPS
medium	56 FPS	55 FPS
high	43 FPS	42 FPS
ultra	34 FPS	33 FPS

Open Core i5-6442EQ Open Xeon X5647

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-6442EQ	Xeon X5647
1080p
low	112 FPS	111 FPS
medium	112 FPS	111 FPS
high	112 FPS	111 FPS
ultra	103 FPS	106 FPS
1440p
low	112 FPS	111 FPS
medium	112 FPS	111 FPS
high	112 FPS	111 FPS
ultra	91 FPS	95 FPS
4K
low	112 FPS	111 FPS
medium	102 FPS	100 FPS
high	79 FPS	78 FPS
ultra	58 FPS	55 FPS

Open Core i5-6442EQ Open Xeon X5647

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-6442EQ	Xeon X5647
1080p
low	112 FPS	111 FPS
medium	112 FPS	111 FPS
high	112 FPS	111 FPS
ultra	112 FPS	111 FPS
1440p
low	112 FPS	111 FPS
medium	112 FPS	111 FPS
high	112 FPS	111 FPS
ultra	112 FPS	111 FPS
4K
low	112 FPS	111 FPS
medium	112 FPS	111 FPS
high	112 FPS	111 FPS
ultra	112 FPS	111 FPS

Open Core i5-6442EQ Open Xeon X5647

League of Legends

League of Legends

Valorant

Preset	Core i5-6442EQ	Xeon X5647
1080p
low	112 FPS	111 FPS
medium	112 FPS	111 FPS
high	112 FPS	111 FPS
ultra	112 FPS	111 FPS
1440p
low	112 FPS	111 FPS
medium	112 FPS	111 FPS
high	112 FPS	111 FPS
ultra	112 FPS	111 FPS
4K
low	112 FPS	111 FPS
medium	112 FPS	111 FPS
high	112 FPS	111 FPS
ultra	112 FPS	111 FPS

Open Core i5-6442EQ Open Xeon X5647

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-6442EQ and Xeon X5647

Core i5-6442EQ

The Core i5-6442EQ is manufactured by Intel. It was released in 12 October 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 4 cores and 4 threads. Max frequency: 1.9 GHz. L3 cache: 6 MB. L2 cache: 1 MB. Built on 14 nm process technology. Thermal design power (TDP): 25 Watt. Passmark benchmark score: 4,483 points. Launch price was $250.

Xeon X5647

The Xeon X5647 is manufactured by Intel. It was released in 14 February 2011 (14 years ago). It is based on the Westmere-EP (2010−2011) architecture. It features 4 cores and 8 threads. Base frequency is 2.93 GHz, with boost up to 3.2 GHz. L3 cache: 12 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1366. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 4,441 points. Launch price was $175.

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Processing Power

The Core i5-6442EQ packs 4 cores / 4 threads, matching the Xeon X5647's 4 cores. Boost clocks reach 1.9 GHz on the Core i5-6442EQ versus 3.2 GHz on the Xeon X5647 — a 51% clock advantage for the Xeon X5647. The Core i5-6442EQ uses the Skylake (2015−2016) architecture (14 nm), while the Xeon X5647 uses Westmere-EP (2010−2011) (32 nm). In PassMark, the Core i5-6442EQ scores 4,483 against the Xeon X5647's 4,441 — a 0.9% lead for the Core i5-6442EQ. L3 cache: 6 MB on the Core i5-6442EQ vs 12 MB (total) on the Xeon X5647.

Feature	Core i5-6442EQ	Xeon X5647
Cores / Threads	4 / 4	4 / 8
Boost Clock	1.9 GHz	3.2 GHz+68%
Base Clock	—	2.93 GHz
L3 Cache	6 MB	12 MB (total)+100%
L2 Cache	1 MB+300%	256 kB (per core)
Process	14 nm-56%	32 nm
Architecture	Skylake (2015−2016)	Westmere-EP (2010−2011)
PassMark	4,483	4,441

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Advanced Features

Virtualization: not specified (Core i5-6442EQ) / VT-x, VT-d (Xeon X5647). Primary use case: Xeon X5647 targets Workstation. Direct competitor: Xeon X5647 rivals Core i7-980X.