Core i7-3635QM vs Xeon E3-1220 v2

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 i7-3635QM vs Xeon E3-1220 v2 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 i7-3635QM vs Xeon E3-1220 v2: Pros, Cons & Final Verdict

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

Core i7-3635QM

2012

Why buy it

✅Better for gaming: +15.7% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 45W instead of 69W, a 24W reduction.

Trade-offs

❌Smaller total L3 cache (6 MB vs 8 MB).

Xeon E3-1220 v2

2012

Why buy it

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

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-3635QM across 50 shared CPU benchmark tests.
❌Lower PassMark (4,680 vs 4,728).
❌53.3% higher power demand at 69W vs 45W.

Quick Answers

So, is Core i7-3635QM better than Xeon E3-1220 v2?

Not really, because they are built for different jobs. Xeon E3-1220 v2 makes more sense for workstation-style multi-core throughput, while Core i7-3635QM is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Core i7-3635QM is the better pick. According to our tests, it delivers 15.7% 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, Core i7-3635QM is the stronger fit. You are getting 1% better PassMark, backed by 4 cores and 8 threads.

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

Core i7-3635QM still makes the most sense overall. Core i7-3635QM comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 15.7% average FPS lead across 50 shared CPU game tests in our data.

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

Core i7-3635QM makes more sense long term for 2026 and beyond. You are getting more multi-core headroom with 4 cores / 8 threads instead of 4/4. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i7-3635QM vs Xeon E3-1220 v2 Technical Specifications

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

Core i7-3635QM

The Core i7-3635QM is manufactured by Intel. It was released in 1 September 2012 (13 years ago). It is based on the Ivy Bridge (2012−2013) architecture. It features 4 cores and 8 threads. Base frequency is 2.4 GHz, with boost up to 3.4 GHz. L3 cache: 6 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: FCBGA1224. Thermal design power (TDP): 45 Watt. Memory support: DDR3. Passmark benchmark score: 4,728 points. Launch price was $69.

Xeon E3-1220 v2

The Xeon E3-1220 v2 is manufactured by Intel. It was released in 14 May 2012 (13 years ago). It is based on the Ivy Bridge (2012−2013) architecture. It features 4 cores and 4 threads. Base frequency is 3.1 GHz, with boost up to 3.5 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 22 nm process technology. Socket: LGA1155. Thermal design power (TDP): 69 Watt. Memory support: DDR3. Passmark benchmark score: 4,680 points. Launch price was $220.

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Processing Power

The Core i7-3635QM packs 4 cores / 8 threads, matching the Xeon E3-1220 v2's 4 cores. Boost clocks reach 3.4 GHz on the Core i7-3635QM versus 3.5 GHz on the Xeon E3-1220 v2 — a 2.9% clock advantage for the Xeon E3-1220 v2 (base: 2.4 GHz vs 3.1 GHz). Both are built on the Ivy Bridge (2012−2013) architecture using a 22 nm process. In PassMark, the Core i7-3635QM scores 4,728 against the Xeon E3-1220 v2's 4,680 — a 1% lead for the Core i7-3635QM. L3 cache: 6 MB (total) on the Core i7-3635QM vs 8 MB (total) on the Xeon E3-1220 v2.

Feature	Core i7-3635QM	Xeon E3-1220 v2
Cores / Threads	4 / 8	4 / 4
Boost Clock	3.4 GHz	3.5 GHz+3%
Base Clock	2.4 GHz	3.1 GHz+29%
L3 Cache	6 MB (total)	8 MB (total)+33%
L2 Cache	256K (per core)	256 kB (per core)
Process	22 nm	22 nm
Architecture	Ivy Bridge (2012−2013)	Ivy Bridge (2012−2013)
PassMark	4,728+1%	4,680

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Memory & Platform

The Core i7-3635QM uses the FCBGA1224 socket (PCIe 3.0), while the Xeon E3-1220 v2 uses LGA1155 (PCIe 3.0) — making them incompatible on the same motherboard.