Core i3-6320 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.

Core i3-6320 vs Xeon X5647 FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Core i3-6320 vs Xeon X5647: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Core i3-6320

2015

Why buy it

✅Draws 51W instead of 130W, a 79W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel HD Graphics 530, while Xeon X5647 needs a discrete GPU.
✅Includes a boxed cooler (Yes), unlike Xeon X5647.

Trade-offs

❌Lower PassMark (4,421 vs 4,441).
❌Smaller total L3 cache (4 MB vs 12 MB).
❌Less compelling for workstation-style loads than Xeon X5647, which brings 4 cores / 8 threads.
❌Launch MSRP is still $160 MSRP, while Xeon X5647 mostly shows up through inconsistent older-market listings.

Xeon X5647

2011

Why buy it

✅+0.5% higher PassMark.
✅+200% larger total L3 cache (12 MB vs 4 MB).
✅Better for workstations and heavier parallel workloads: 4 cores / 8 threads.

Trade-offs

❌154.9% higher power demand at 130W vs 51W.
❌No integrated graphics, while Core i3-6320 can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike Core i3-6320.

Quick Answers

So, is Core i3-6320 better than Xeon X5647?

Not really, because they are built for different jobs. Xeon X5647 makes more sense for workstation-style multi-core throughput, while Core i3-6320 is the more practical desktop choice for gaming, platform cost, and everyday use.

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

For streaming, content creation, and heavier multitasking, Xeon X5647 is the stronger fit. You are getting 0.5% better PassMark, backed by 4 cores and 8 threads. It also has the larger cache pool with 200% larger total L3 cache (12 MB vs 4 MB).

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

Core i3-6320 is the better buy right now. Core i3-6320 comes in at an unclear MSRP at $160 MSRP versus unclear MSRP, and it still gives you a 2.5% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon X5647 is still stronger for heavier multi-core work with 0.5% better PassMark. It is also 100.0% better value on MSRP (27.6 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Core i3-6320 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2015 vs 2011). That makes it the safer long-term bet.

Core i3-6320 vs Xeon X5647 Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Core i3-6320

The Core i3-6320 is manufactured by Intel. It was released in 1 September 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 2 cores and 4 threads. Base frequency is 3.9 GHz, with boost up to 3.9 GHz. L3 cache: 4 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 51 Watt. Memory support: DDR4. Passmark benchmark score: 4,421 points. Launch price was $157.

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.

⚡

Processing Power

The Core i3-6320 packs 2 cores / 4 threads, while the Xeon X5647 offers 4 cores / 8 threads — the Xeon X5647 has 2 more cores. Boost clocks reach 3.9 GHz on the Core i3-6320 versus 3.2 GHz on the Xeon X5647 — a 19.7% clock advantage for the Core i3-6320 (base: 3.9 GHz vs 2.93 GHz). The Core i3-6320 uses the Skylake (2015−2016) architecture (14 nm), while the Xeon X5647 uses Westmere-EP (2010−2011) (32 nm). In PassMark, the Core i3-6320 scores 4,421 against the Xeon X5647's 4,441 — a 0.5% lead for the Xeon X5647. L3 cache: 4 MB (total) on the Core i3-6320 vs 12 MB (total) on the Xeon X5647.

Feature	Core i3-6320	Xeon X5647
Cores / Threads	2 / 4	4 / 8+100%
Boost Clock	3.9 GHz+22%	3.2 GHz
Base Clock	3.9 GHz+33%	2.93 GHz
L3 Cache	4 MB (total)	12 MB (total)+200%
L2 Cache	256K (per core)	256 kB (per core)
Process	14 nm-56%	32 nm
Architecture	Skylake (2015−2016)	Westmere-EP (2010−2011)
PassMark	4,421	4,441
Cinebench R23 Multi	2,853	—
Geekbench 6 Single	1,311	—
Geekbench 6 Multi	2,730	—

🧠

Memory & Platform

The Core i3-6320 uses the LGA1151 socket (PCIe 3.0), while the Xeon X5647 uses LGA1366 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2133 on the Core i3-6320 versus DDR3-1066 on the Xeon X5647 — the Core i3-6320 supports 100.1% faster memory, which can translate to measurable gains in memory-sensitive workloads. Memory channels: 2 (Core i3-6320) vs 3 (Xeon X5647). Chipset compatibility: H110,H170,Z170,Q170,Q150,B150,B250,H270,Z270,Q270,Q250 (Core i3-6320) and Intel X58,Intel 5520 (Xeon X5647).

Feature	Core i3-6320	Xeon X5647
Socket	LGA1151	LGA1366
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	DDR4-2133+100%	DDR3-1066
Max RAM Capacity	64 GB	—
RAM Channels	2	3+50%
ECC Support	Yes	Yes
PCIe Lanes	16	—

🔧

Advanced Features

Virtualization support: Yes (Core i3-6320) vs VT-x, VT-d (Xeon X5647). The Core i3-6320 includes integrated graphics (Intel HD Graphics 530), while the Xeon X5647 requires a dedicated GPU. Primary use case: Xeon X5647 targets Workstation. Direct competitor: Xeon X5647 rivals Core i7-980X.