Core i5-8350U vs Xeon E3-1265L v3

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 i5-8350U vs Xeon E3-1265L v3 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 i5-8350U vs Xeon E3-1265L v3: Pros, Cons & Final Verdict

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

Core i5-8350U

2017

Why buy it

✅Draws 15W instead of 45W, a 30W reduction.

Trade-offs

❌Lower PassMark (6,102 vs 6,187).
❌Smaller total L3 cache (6 MB vs 8 MB).
❌Less compelling for workstation-style loads than Xeon E3-1265L v3, which brings 4 cores / 8 threads and 16 PCIe lanes.
❌No integrated graphics, while Xeon E3-1265L v3 can still boot and troubleshoot without a discrete GPU.

Xeon E3-1265L v3

2013

Why buy it

✅+33.3% larger total L3 cache (8 MB vs 6 MB).
✅Better for workstations and heavier parallel workloads: 4 cores / 8 threads, plus 16 PCIe lanes vs 0.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD Graphics P4600, while Core i5-8350U needs a discrete GPU.

Trade-offs

❌Launch MSRP is still $294 MSRP, while Core i5-8350U mostly shows up through inconsistent older-market listings.
❌200% higher power demand at 45W vs 15W.

Quick Answers

So, is Xeon E3-1265L v3 better than Core i5-8350U?

Not really, because they are built for different jobs. Xeon E3-1265L v3 makes more sense for workstation-style multi-core throughput, while Core i5-8350U is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Xeon E3-1265L v3 is the better pick. According to our tests, it delivers 0.8% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Xeon E3-1265L v3 is the stronger fit. You are getting 1.4% better PassMark, backed by 4 cores and 8 threads. It also has the larger cache pool with 33.3% larger total L3 cache (8 MB vs 6 MB).

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

Xeon E3-1265L v3 is the better buy right now. Xeon E3-1265L v3 comes in at an unclear MSRP at $294 MSRP versus unclear MSRP, and it still gives you a 0.8% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (21.0 vs 0.0 PassMark/$), 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 i5-8350U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2017 vs 2013). That makes it the safer long-term bet.

Core i5-8350U vs Xeon E3-1265L v3 Technical Specifications

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

Core i5-8350U

The Core i5-8350U is manufactured by Intel. It was released in 21 August 2017 (8 years ago). It is based on the Kaby Lake Refresh (2017−2019) architecture. It features 4 cores and 8 threads. Base frequency is 1.7 GHz, with boost up to 3.6 GHz. L3 cache: 6 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: BGA1356. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 6,102 points. Launch price was $297.

Xeon E3-1265L v3

The Xeon E3-1265L v3 is manufactured by Intel. It was released in 2 June 2013 (12 years ago). It is based on the Haswell-WS (2013−2014) architecture. It features 4 cores and 8 threads. Base frequency is 2.5 GHz, with boost up to 3.7 GHz. L3 cache: 8192 kB (total). L2 cache: 256 kB (per core). Built on 22 nm process technology. Socket: LGA1150. Thermal design power (TDP): 45 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 6,187 points. Launch price was $710.

⚡

Processing Power

Both the Core i5-8350U and Xeon E3-1265L v3 share an identical 4-core/8-thread configuration. Boost clocks reach 3.6 GHz on the Core i5-8350U versus 3.7 GHz on the Xeon E3-1265L v3 — a 2.7% clock advantage for the Xeon E3-1265L v3 (base: 1.7 GHz vs 2.5 GHz). The Core i5-8350U uses the Kaby Lake Refresh (2017−2019) architecture (14 nm), while the Xeon E3-1265L v3 uses Haswell-WS (2013−2014) (22 nm). In PassMark, the Core i5-8350U scores 6,102 against the Xeon E3-1265L v3's 6,187 — a 1.4% lead for the Xeon E3-1265L v3. L3 cache: 6 MB (total) on the Core i5-8350U vs 8192 kB (total) on the Xeon E3-1265L v3.

Feature	Core i5-8350U	Xeon E3-1265L v3
Cores / Threads	4 / 8	4 / 8
Boost Clock	3.6 GHz	3.7 GHz+3%
Base Clock	1.7 GHz	2.5 GHz+47%
L3 Cache	6 MB (total)	8192 kB (total)+33%
L2 Cache	256K (per core)	256 kB (per core)
Process	14 nm-36%	22 nm
Architecture	Kaby Lake Refresh (2017−2019)	Haswell-WS (2013−2014)
PassMark	6,102	6,187+1%
Geekbench 6 Single	—	996
Geekbench 6 Multi	—	3,458

🧠

Memory & Platform

The Core i5-8350U uses the BGA1356 socket (PCIe 3.0), while the Xeon E3-1265L v3 uses LGA1150 (PCIe 5.0) — making them incompatible on the same motherboard.

Feature	Core i5-8350U	Xeon E3-1265L v3
Socket	BGA1356	LGA1150
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	—	DDR3-1600
Max RAM Capacity	—	32 GB
RAM Channels	—	2
ECC Support	—	Yes
PCIe Lanes	—	16

🔧

Advanced Features

Virtualization: not specified (Core i5-8350U) / Yes (Xeon E3-1265L v3). The Xeon E3-1265L v3 includes integrated graphics (HD Graphics P4600), while the Core i5-8350U requires a dedicated GPU. Primary use case: Xeon E3-1265L v3 targets Server.