Core i7-3770K vs Xeon X5675

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 i7-3770K vs Xeon X5675 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 i7-3770K vs Xeon X5675: Pros, Cons & Final Verdict

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

Core i7-3770K

2012

Why buy it

✅Better for gaming: +5.2% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $1,108 less on MSRP ($332 MSRP vs $1,440 MSRP).
✅Delivers 338.9% more PassMark for each dollar spent, at 19.6 vs 4.5 PassMark/$ ($332 MSRP vs $1,440 MSRP).
✅Draws 77W instead of 95W, a 18W reduction.

Trade-offs

❌Smaller total L3 cache (8 MB vs 12 MB).
❌Less compelling for workstation-style loads than Xeon X5675, which brings 6 cores / 12 threads.

Xeon X5675

2011

Why buy it

✅+50% larger total L3 cache (12 MB vs 8 MB).
✅Better for workstations and heavier parallel workloads: 6 cores / 12 threads.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-3770K across 50 shared CPU benchmark tests.
❌Lower PassMark (6,418 vs 6,495).
❌Lower PassMark per dollar, at 4.5 vs 19.6 PassMark/$ ($1,440 MSRP vs $332 MSRP).
❌23.4% higher power demand at 95W vs 77W.

Quick Answers

So, is Core i7-3770K better than Xeon X5675?

Not really, because they are built for different jobs. Xeon X5675 makes more sense for workstation-style multi-core throughput, while Core i7-3770K 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 i7-3770K is the better pick. According to our tests, it delivers 5.2% 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 i7-3770K is the stronger fit. You are getting 1.2% better PassMark, backed by 4 cores and 8 threads.

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

Core i7-3770K is the better buy right now. Core i7-3770K comes in $1,108 cheaper on MSRP at $332 MSRP versus $1,440 MSRP, and it still gives you a 5.2% average FPS lead across 50 shared CPU game tests in our data. It is also 338.9% better value on MSRP (19.6 vs 4.5 PassMark/$), 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 i7-3770K makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2012 vs 2011) and more multi-core headroom with 4 cores / 8 threads instead of 6/12. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i7-3770K vs Xeon X5675 Technical Specifications

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

Core i7-3770K

The Core i7-3770K is manufactured by Intel. It was released in 29 April 2012 (13 years ago). It is based on the Ivy Bridge (2012−2013) architecture. It features 4 cores and 8 threads. Base frequency is 3.5 GHz, with boost up to 3.9 GHz. L3 cache: 8 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: LGA1155. Thermal design power (TDP): 77 Watt. Memory support: DDR3. Passmark benchmark score: 6,495 points. Launch price was $294.

Xeon X5675

The Xeon X5675 is manufactured by Intel. It was released in 14 February 2011 (14 years ago). It is based on the Westmere-EP (2010−2011) architecture. It features 6 cores and 12 threads. Base frequency is 3.06 GHz, with boost up to 3.46 GHz. L3 cache: 12288 kB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1366. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 6,418 points. Launch price was $162.

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Processing Power

The Core i7-3770K packs 4 cores / 8 threads, while the Xeon X5675 offers 6 cores / 12 threads — the Xeon X5675 has 2 more cores. Boost clocks reach 3.9 GHz on the Core i7-3770K versus 3.46 GHz on the Xeon X5675 — a 12% clock advantage for the Core i7-3770K (base: 3.5 GHz vs 3.06 GHz). The Core i7-3770K uses the Ivy Bridge (2012−2013) architecture (22 nm), while the Xeon X5675 uses Westmere-EP (2010−2011) (32 nm). In PassMark, the Core i7-3770K scores 6,495 against the Xeon X5675's 6,418 — a 1.2% lead for the Core i7-3770K. L3 cache: 8 MB (total) on the Core i7-3770K vs 12288 kB (total) on the Xeon X5675.

Feature	Core i7-3770K	Xeon X5675
Cores / Threads	4 / 8	6 / 12+50%
Boost Clock	3.9 GHz+13%	3.46 GHz
Base Clock	3.5 GHz+14%	3.06 GHz
L3 Cache	8 MB (total)	12288 kB (total)+50%
L2 Cache	256K (per core)	256 kB (per core)
Process	22 nm-31%	32 nm
Architecture	Ivy Bridge (2012−2013)	Westmere-EP (2010−2011)
PassMark	6,495+1%	6,418

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Memory & Platform

The Core i7-3770K uses the LGA1155 socket (PCIe 3.0), while the Xeon X5675 uses LGA1366 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Core i7-3770K	Xeon X5675
Socket	LGA1155	LGA1366
PCIe Generation	PCIe 3.0+50%	PCIe 2.0
Max RAM Speed	—	DDR3-1333
RAM Channels	—	3
ECC Support	—	Yes

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Advanced Features

Virtualization: not specified (Core i7-3770K) / VT-x, VT-d, EPT (Xeon X5675). Primary use case: Xeon X5675 targets Workstation. Direct competitor: Xeon X5675 rivals Core i7-980X.

Feature	Core i7-3770K	Xeon X5675
Integrated GPU	—	No
Unlocked	—	No
AVX-512	—	No
Virtualization	—	VT-x, VT-d, EPT
Target Use	—	Workstation

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Value Analysis

At launch, the Core i7-3770K was priced at $332, while the Xeon X5675 came in at $1440. On launch pricing ($332 vs $1440), Core i7-3770K was $1108 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-3770K delivers 19.6 pts/$ vs 4.5 pts/$ for the Xeon X5675 — making the Core i7-3770K the 125.8% better value option.

Feature	Core i7-3770K	Xeon X5675
MSRP	$332-77%	$1440
Performance per Dollar	19.6+336%	4.5
Release Date	2012	2011

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