Core i5-8257U vs Xeon E3-1505M 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 i5-8257U vs Xeon E3-1505M 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 i5-8257U vs Xeon E3-1505M 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 i5-8257U

2019

Why buy it

✅Draws 1W instead of 45W, a 44W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel Iris Plus Graphics 645, while Xeon E3-1505M v6 needs a discrete GPU.

Trade-offs

❌Lower PassMark (7,427 vs 7,441).
❌Smaller total L3 cache (6 MB vs 8 MB).

Xeon E3-1505M v6

2017

Why buy it

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

Trade-offs

❌Launch MSRP is still $434 MSRP, while Core i5-8257U mostly shows up through inconsistent older-market listings.
❌4400% higher power demand at 45W vs 1W.
❌No integrated graphics, while Core i5-8257U can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Xeon E3-1505M v6 better than Core i5-8257U?

Not really, because they are built for different jobs. Xeon E3-1505M v6 makes more sense for workstation-style multi-core throughput, while Core i5-8257U 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 E3-1505M v6 is the better pick. According to our tests, it delivers 2.8% 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 E3-1505M v6 is the stronger fit. You are getting 0.2% 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?

Xeon E3-1505M v6 is the better buy right now. Xeon E3-1505M v6 comes in at an unclear MSRP at $434 MSRP versus unclear MSRP, and it still gives you a 2.8% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (17.1 vs 0.0 PassMark/$), 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 i5-8257U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2019 vs 2017). That makes it the safer long-term bet.

Core i5-8257U vs Xeon E3-1505M v6 Technical Specifications

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

Core i5-8257U

The Core i5-8257U is manufactured by Intel. It was released in 10 July 2019 (6 years ago). It is based on the Coffee Lake-U (2018−2019) architecture. It features 4 cores and 8 threads. Base frequency is 1.4 GHz, with boost up to 3.9 GHz. L3 cache: 6 MB. L2 cache: 1 MB. Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 7,427 points. Launch price was $149.

Xeon E3-1505M v6

The Xeon E3-1505M 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. Base frequency is 3 GHz, with boost up to 4 GHz. L3 cache: 8 MB. L2 cache: 1 MB. Built on 14 nm process technology. Socket: BGA1440. Thermal design power (TDP): 45 Watt. Memory support: DDR4. Passmark benchmark score: 7,441 points. Launch price was $623.

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Processing Power

Both the Core i5-8257U and Xeon E3-1505M v6 share an identical 4-core/8-thread configuration. Boost clocks reach 3.9 GHz on the Core i5-8257U versus 4 GHz on the Xeon E3-1505M v6 — a 2.5% clock advantage for the Xeon E3-1505M v6 (base: 1.4 GHz vs 3 GHz). The Core i5-8257U uses the Coffee Lake-U (2018−2019) architecture (14 nm), while the Xeon E3-1505M v6 uses Kaby Lake (2016−2019) (14 nm). In PassMark, the Core i5-8257U scores 7,427 against the Xeon E3-1505M v6's 7,441 — a 0.2% lead for the Xeon E3-1505M v6. L3 cache: 6 MB on the Core i5-8257U vs 8 MB on the Xeon E3-1505M v6.

Feature	Core i5-8257U	Xeon E3-1505M v6
Cores / Threads	4 / 8	4 / 8
Boost Clock	3.9 GHz	4 GHz+3%
Base Clock	1.4 GHz	3 GHz+114%
L3 Cache	6 MB	8 MB+33%
L2 Cache	1 MB	1 MB
Process	14 nm	14 nm
Architecture	Coffee Lake-U (2018−2019)	Kaby Lake (2016−2019)
PassMark	7,427	7,441
Cinebench R23 Multi	4,017	—
Geekbench 6 Single	1,100	—
Geekbench 6 Multi	4,000	—

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Memory & Platform

The Core i5-8257U uses the FCBGA1528 socket (PCIe 3.0), while the Xeon E3-1505M v6 uses BGA1440 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i5-8257U	Xeon E3-1505M v6
Socket	FCBGA1528	BGA1440
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2400	—
Max RAM Capacity	32 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: VT-x, VT-d (Core i5-8257U) / not specified (Xeon E3-1505M v6). The Core i5-8257U includes integrated graphics (Intel Iris Plus Graphics 645), while the Xeon E3-1505M v6 requires a dedicated GPU. Primary use case: Core i5-8257U targets Ultrabook.