Core i7-1255U vs Xeon E5-2675 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 i7-1255U vs Xeon E5-2675 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 i7-1255U vs Xeon E5-2675 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 i7-1255U

2022

Why buy it

✅Better for gaming: +9.5% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 15W instead of 110W, a 95W reduction.
✅Newer platform on FCBGA1744 with DDR5 support instead of LGA2011-3 and DDR4.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Iris Xe Graphics 96EU, while Xeon E5-2675 V3 needs a discrete GPU.

Trade-offs

❌Lower PassMark (13,128 vs 13,180).
❌Smaller total L3 cache (12 MB vs 40 MB).
❌Less compelling for workstation-style loads than Xeon E5-2675 V3, which brings 16 cores / 32 threads.

Xeon E5-2675 V3

2014

Why buy it

✅+0.4% higher PassMark.
✅+233.3% larger total L3 cache (40 MB vs 12 MB).
✅Better for workstations and heavier parallel workloads: 16 cores / 32 threads.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-1255U across 50 shared CPU benchmark tests.
❌Launch MSRP is still $1,800 MSRP, while Core i7-1255U mostly shows up through inconsistent older-market listings.
❌633.3% higher power demand at 110W vs 15W.
❌Older platform position on LGA2011-3 with DDR4, while Core i7-1255U moves to FCBGA1744 and DDR5.
❌No integrated graphics, while Core i7-1255U can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i7-1255U better than Xeon E5-2675 V3?

Not really, because they are built for different jobs. Xeon E5-2675 V3 makes more sense for workstation-style multi-core throughput, while Core i7-1255U 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 E5-2675 V3 is the stronger fit. You are getting 0.4% better PassMark, backed by 16 cores and 32 threads. It also has the larger cache pool with 233.3% larger total L3 cache (40 MB vs 12 MB).

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

Core i7-1255U is still the faster CPU overall, but Xeon E5-2675 V3 is easier to justify if budget matters more than peak performance. Core i7-1255U comes in at an unclear MSRP at unclear MSRP versus $1,800 MSRP, and it still gives you a 9.5% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon E5-2675 V3 is still stronger for heavier multi-core work with 0.4% better PassMark. Xeon E5-2675 V3 is also 100.0% better value on MSRP (7.3 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Core i7-1255U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2014) and a healthier platform with FCBGA1744 and DDR5 instead of LGA2011-3. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i7-1255U vs Xeon E5-2675 V3 Technical Specifications

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

Core i7-1255U

The Core i7-1255U is manufactured by Intel. It was released in 23 February 2022 (3 years ago). It is based on the Alder Lake-U (2022) architecture. It features 10 cores and 12 threads. Base frequency is 1.7 GHz, with boost up to 4.7 GHz. L3 cache: 12 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: FCBGA1744. Thermal design power (TDP): 15 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 13,128 points. Launch price was $149.

Xeon E5-2675 V3

The Xeon E5-2675 V3 is manufactured by Intel. It was released in 2015-01-01. It is based on the Haswell-EP (2014−2015) architecture. It features 16 cores and 32 threads. Base frequency is 1.8 GHz, with boost up to 2.3 GHz. L3 cache: 40 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: LGA2011-3. Thermal design power (TDP): 110 Watt. Memory support: DDR4-2133. Passmark benchmark score: 13,180 points. Launch price was $800.

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Processing Power

The Core i7-1255U packs 10 cores / 12 threads, while the Xeon E5-2675 V3 offers 16 cores / 32 threads — the Xeon E5-2675 V3 has 6 more cores. Boost clocks reach 4.7 GHz on the Core i7-1255U versus 2.3 GHz on the Xeon E5-2675 V3 — a 68.6% clock advantage for the Core i7-1255U (base: 1.7 GHz vs 1.8 GHz). The Core i7-1255U uses the Alder Lake-U (2022) architecture (Intel 7 nm), while the Xeon E5-2675 V3 uses Haswell-EP (2014−2015) (22 nm). In PassMark, the Core i7-1255U scores 13,128 against the Xeon E5-2675 V3's 13,180 — a 0.4% lead for the Xeon E5-2675 V3. L3 cache: 12 MB (total) on the Core i7-1255U vs 40 MB (total) on the Xeon E5-2675 V3.

Feature	Core i7-1255U	Xeon E5-2675 V3
Cores / Threads	10 / 12	16 / 32+60%
Boost Clock	4.7 GHz+104%	2.3 GHz
Base Clock	1.7 GHz	1.8 GHz+6%
L3 Cache	12 MB (total)	40 MB (total)+233%
L2 Cache	1.25 MB (per core)	256K (per core)+20380%
Process	Intel 7 nm-68%	22 nm
Architecture	Alder Lake-U (2022)	Haswell-EP (2014−2015)
PassMark	13,128	13,180
Geekbench 6 Single	1,809	—

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Memory & Platform

The Core i7-1255U uses the FCBGA1744 socket (PCIe 5.0), while the Xeon E5-2675 V3 uses LGA2011-3 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i7-1255U	Xeon E5-2675 V3
Socket	FCBGA1744	LGA2011-3
PCIe Generation	PCIe 5.0+67%	PCIe 3.0
Max RAM Speed	DDR5-4800	—
Max RAM Capacity	64 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	20	—

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Advanced Features

Virtualization: VT-x, VT-d, EPT (Core i7-1255U) / not specified (Xeon E5-2675 V3). The Core i7-1255U includes integrated graphics (Iris Xe Graphics 96EU), while the Xeon E5-2675 V3 requires a dedicated GPU. Primary use case: Core i7-1255U targets Mainstream Laptop. Direct competitor: Core i7-1255U rivals Ryzen 7 6800U.