Xeon E3-1276 v3 vs Xeon E3-1535M v5

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.

Xeon E3-1276 v3 vs Xeon E3-1535M v5 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.

Xeon E3-1276 v3 vs Xeon E3-1535M v5: Pros, Cons & Final Verdict

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

Xeon E3-1276 v3

2014

Why buy it

✅Better for gaming: +3.1% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Launch MSRP is still $213 MSRP, while Xeon E3-1535M v5 mostly shows up through inconsistent older-market listings.
❌86.7% higher power demand at 84W vs 45W.

Xeon E3-1535M v5

2015

Why buy it

✅Draws 45W instead of 84W, a 39W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E3-1276 v3 across 50 shared CPU benchmark tests.
❌Lower PassMark (7,480 vs 7,543).

Quick Answers

So, is Xeon E3-1276 v3 better than Xeon E3-1535M v5?

Yes. Xeon E3-1276 v3 is the better all-around CPU here. It gives you a 3.1% average FPS lead across 50 shared CPU game tests in our data and 0.8% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Xeon E3-1276 v3 is the better pick. According to our tests, it delivers 3.1% 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 E3-1276 v3 is the stronger fit. You are getting 0.8% better PassMark, backed by 4 cores and 8 threads.

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

Xeon E3-1276 v3 is the better buy right now. Xeon E3-1276 v3 comes in at an unclear MSRP at $213 MSRP versus unclear MSRP, and it still gives you a 3.1% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (35.4 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Xeon E3-1535M v5 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2015 vs 2014). That makes it the safer long-term bet.

Xeon E3-1276 v3 vs Xeon E3-1535M v5 Technical Specifications

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

Xeon E3-1276 v3

The Xeon E3-1276 v3 is manufactured by Intel. It was released in 2015-01-01. It features 4 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 4 GHz. L3 cache: 8 MB Intel® Smart Cache. Built on 22 nm process technology. Socket: LGA1150. Thermal design power (TDP): 84 Watt. Memory support: DDR3L-1333, DDR3L-1600. Passmark benchmark score: 7,543 points. Launch price was $800.

Xeon E3-1535M v5

The Xeon E3-1535M v5 is manufactured by Intel. It was released in 27 October 2015 (10 years ago). It is based on the Skylake-H (2015−2016) architecture. It features 4 cores and 8 threads. Base frequency is 2.9 GHz, with boost up to 3.8 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: BGA1440. Thermal design power (TDP): 45 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 7,480 points. Launch price was $623.

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Processing Power

Both the Xeon E3-1276 v3 and Xeon E3-1535M v5 share an identical 4-core/8-thread configuration. Boost clocks reach 4 GHz on the Xeon E3-1276 v3 versus 3.8 GHz on the Xeon E3-1535M v5 — a 5.1% clock advantage for the Xeon E3-1276 v3 (base: 3.6 GHz vs 2.9 GHz). The Xeon E3-1535M v5 is built on the Skylake-H (2015−2016) architecture. In PassMark, the Xeon E3-1276 v3 scores 7,543 against the Xeon E3-1535M v5's 7,480 — a 0.8% lead for the Xeon E3-1276 v3. L3 cache: 8 MB Intel® Smart Cache on the Xeon E3-1276 v3 vs 8 MB (total) on the Xeon E3-1535M v5.

Feature	Xeon E3-1276 v3	Xeon E3-1535M v5
Cores / Threads	4 / 8	4 / 8
Boost Clock	4 GHz+5%	3.8 GHz
Base Clock	3.6 GHz+24%	2.9 GHz
L3 Cache	8 MB Intel® Smart Cache	8 MB (total)
L2 Cache	—	256 kB (per core)
Process	22 nm	14 nm-36%
Architecture	—	Skylake-H (2015−2016)
PassMark	7,543	7,480

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Memory & Platform

The Xeon E3-1276 v3 uses the LGA1150 socket (PCIe 3.0), while the Xeon E3-1535M v5 uses BGA1440 (PCIe 3.0) — making them incompatible on the same motherboard.