Core i5-4670K vs Xeon E3-1275

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 i5-4670K vs Xeon E3-1275 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 i5-4670K vs Xeon E3-1275: Pros, Cons & Final Verdict

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

Core i5-4670K

2013

Why buy it

✅+1.6% higher PassMark.
✅Draws 84W instead of 95W, a 11W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD Graphics 4600, while Xeon E3-1275 needs a discrete GPU.
✅Includes a boxed cooler (Yes), unlike Xeon E3-1275.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E3-1275 across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (6 MB vs 8 MB).
❌Less compelling for workstation-style loads than Xeon E3-1275, which brings 4 cores / 8 threads.
❌Launch MSRP is still $328 MSRP, while Xeon E3-1275 mostly shows up through inconsistent older-market listings.

Xeon E3-1275

2011

Why buy it

✅Better for gaming: +5.8% higher average FPS across 50 shared CPU benchmark tests.
✅+33.3% larger total L3 cache (8 MB vs 6 MB).
✅Better for workstations and heavier parallel workloads: 4 cores / 8 threads.

Trade-offs

❌Lower PassMark (5,496 vs 5,584).
❌No integrated graphics, while Core i5-4670K can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike Core i5-4670K.

Quick Answers

So, is Core i5-4670K better than Xeon E3-1275?

Not really, because they are built for different jobs. Xeon E3-1275 makes more sense for workstation-style multi-core throughput, while Core i5-4670K 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, Core i5-4670K is the stronger fit. You are getting 1.6% better PassMark, backed by 4 cores and 4 threads.

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

Core i5-4670K is the better buy right now. Core i5-4670K comes in at an unclear MSRP at $328 MSRP versus unclear MSRP, and it still gives you 1.6% better PassMark. The compromise is that Xeon E3-1275 is still the better pure gaming CPU with a 5.8% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (17.0 vs 0.0 PassMark/$), 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 i5-4670K makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2013 vs 2011) and more multi-core headroom with 4 cores / 4 threads instead of 4/8. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i5-4670K vs Xeon E3-1275 Technical Specifications

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

Core i5-4670K

The Core i5-4670K is manufactured by Intel. It was released in 2 June 2013 (12 years ago). It is based on the Haswell (2013−2015) architecture. It features 4 cores and 4 threads. Base frequency is 3.4 GHz, with boost up to 3.8 GHz. L3 cache: 6144 kB (total). L2 cache: 256 kB (per core). Built on 22 nm process technology. Socket: LGA1150. Thermal design power (TDP): 84 Watt. Memory support: DDR3. Passmark benchmark score: 5,584 points. Launch price was $266.

Xeon E3-1275

The Xeon E3-1275 is manufactured by Intel. It was released in 3 April 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 4 cores and 8 threads. Base frequency is 3.4 GHz, with boost up to 3.8 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 5,496 points. Launch price was $450.

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Processing Power

The Core i5-4670K packs 4 cores / 4 threads, matching the Xeon E3-1275's 4 cores. Boost clocks reach 3.8 GHz on the Core i5-4670K versus 3.8 GHz on the Xeon E3-1275 — identical boost frequencies (base: 3.4 GHz vs 3.4 GHz). The Core i5-4670K uses the Haswell (2013−2015) architecture (22 nm), while the Xeon E3-1275 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Core i5-4670K scores 5,584 against the Xeon E3-1275's 5,496 — a 1.6% lead for the Core i5-4670K. L3 cache: 6144 kB (total) on the Core i5-4670K vs 8 MB (total) on the Xeon E3-1275.

Feature	Core i5-4670K	Xeon E3-1275
Cores / Threads	4 / 4	4 / 8
Boost Clock	3.8 GHz	3.8 GHz
Base Clock	3.4 GHz	3.4 GHz
L3 Cache	6144 kB (total)	8 MB (total)+33%
L2 Cache	256 kB (per core)	256 kB (per core)
Process	22 nm-31%	32 nm
Architecture	Haswell (2013−2015)	Sandy Bridge (2011−2013)
PassMark	5,584+2%	5,496
Geekbench 6 Single	975	—

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Memory & Platform

The Core i5-4670K uses the LGA1150 socket (PCIe 3.0), while the Xeon E3-1275 uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Core i5-4670K	Xeon E3-1275
Socket	LGA1150	LGA1155
PCIe Generation	PCIe 3.0+50%	PCIe 2.0
Max RAM Speed	DDR3-1600	—
Max RAM Capacity	32 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: VT-x, EPT (Core i5-4670K) / not specified (Xeon E3-1275). The Core i5-4670K includes integrated graphics (HD Graphics 4600), while the Xeon E3-1275 requires a dedicated GPU. Primary use case: Core i5-4670K targets Gaming Desktop. Direct competitor: Core i5-4670K rivals FX-9370.