Core i5-8265U vs Xeon E3-1505L v6

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 i5-8265U vs Xeon E3-1505L v6 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 i5-8265U vs Xeon E3-1505L v6: Pros, Cons & Final Verdict

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

Core i5-8265U

2018

Why buy it

✅Draws 15W instead of 25W, a 10W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel UHD Graphics 620, while Xeon E3-1505L v6 needs a discrete GPU.

Trade-offs

❌Lower PassMark (5,812 vs 5,882).
❌Smaller total L3 cache (6 MB vs 8 MB).

Xeon E3-1505L v6

2017

Why buy it

✅+1.2% higher PassMark.
✅+33.3% larger total L3 cache (8 MB vs 6 MB).

Trade-offs

❌66.7% higher power demand at 25W vs 15W.
❌No integrated graphics, while Core i5-8265U can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i5-8265U better than Xeon E3-1505L v6?

Not really, because they are built for different jobs. Xeon E3-1505L v6 makes more sense for workstation-style multi-core throughput, while Core i5-8265U 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 E3-1505L v6 is the stronger fit. You are getting 1.2% 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?

Core i5-8265U still makes the most sense overall. Core i5-8265U comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 2.0% average FPS lead across 50 shared CPU game tests in our data.

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

Core i5-8265U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2018 vs 2017). That makes it the safer long-term bet.

Core i5-8265U vs Xeon E3-1505L v6 Technical Specifications

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

Core i5-8265U

The Core i5-8265U is manufactured by Intel. It was released in 1 October 2018 (7 years ago). It is based on the Whiskey Lake-U (2018−2019) architecture. It features 4 cores and 8 threads. Base frequency is 1.6 GHz, with boost up to 3.9 GHz. L3 cache: 6 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 5,812 points. Launch price was $297.

Xeon E3-1505L v6

The Xeon E3-1505L v6 is manufactured by Intel. It was released in 3 January 2017 (8 years ago). It is based on the Kaby Lake (2016−2019) architecture. It features 4 cores and 8 threads. Max frequency: 2.2 GHz. L3 cache: 8 MB. L2 cache: 1 MB. Built on 14 nm process technology. Thermal design power (TDP): 25 Watt. Memory support: DDR3L-1600. Passmark benchmark score: 5,882 points. Launch price was $433.

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Processing Power

Both the Core i5-8265U and Xeon E3-1505L v6 share an identical 4-core/8-thread configuration. Boost clocks reach 3.9 GHz on the Core i5-8265U versus 2.2 GHz on the Xeon E3-1505L v6 — a 55.7% clock advantage for the Core i5-8265U. The Core i5-8265U uses the Whiskey Lake-U (2018−2019) architecture (14 nm), while the Xeon E3-1505L v6 uses Kaby Lake (2016−2019) (14 nm). In PassMark, the Core i5-8265U scores 5,812 against the Xeon E3-1505L v6's 5,882 — a 1.2% lead for the Xeon E3-1505L v6. L3 cache: 6 MB (total) on the Core i5-8265U vs 8 MB on the Xeon E3-1505L v6.

Feature	Core i5-8265U	Xeon E3-1505L v6
Cores / Threads	4 / 8	4 / 8
Boost Clock	3.9 GHz+77%	2.2 GHz
Base Clock	1.6 GHz	—
L3 Cache	6 MB (total)	8 MB+33%
L2 Cache	256 kB (per core)	1 MB+300%
Process	14 nm	14 nm
Architecture	Whiskey Lake-U (2018−2019)	Kaby Lake (2016−2019)
PassMark	5,812	5,882+1%
Cinebench R23 Multi	3,000	—
Geekbench 6 Single	1,200	—
Geekbench 6 Multi	3,500	—

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Advanced Features

Virtualization: VT-x, VT-d, EPT (Core i5-8265U) / not specified (Xeon E3-1505L v6). The Core i5-8265U includes integrated graphics (Intel UHD Graphics 620), while the Xeon E3-1505L v6 requires a dedicated GPU. Primary use case: Core i5-8265U targets Mainstream Laptop.