Xeon E3-1275 v3 vs Xeon E7530

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 E3-1275 v3 vs Xeon E7530 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 E3-1275 v3 vs Xeon E7530: Pros, Cons & Final Verdict

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

Xeon E3-1275 v3

2013

Why buy it

✅Draws 84W instead of 105W, a 21W reduction.

Trade-offs

❌Lower PassMark (7,220 vs 7,231).
❌Smaller total L3 cache (8 MB vs 12 MB).

Xeon E7530

2010

Why buy it

✅+0.2% higher PassMark.
✅+50% larger total L3 cache (12 MB vs 8 MB).

Trade-offs

❌Launch MSRP is still $1,391 MSRP, while Xeon E3-1275 v3 mostly shows up through inconsistent older-market listings.
❌25% higher power demand at 105W vs 84W.

Quick Answers

So, is Xeon E3-1275 v3 better than Xeon E7530?

It depends on what you want from the system. For gaming, Xeon E3-1275 v3 is ahead with a 0.8% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Xeon E7530 pulls ahead with 0.2% better PassMark. Xeon E7530 also has the bigger cache pool with 50% larger total L3 cache (12 MB vs 8 MB).

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Xeon E7530 is the stronger fit. You are getting 0.2% better PassMark, backed by 6 cores and 12 threads. It also has the larger cache pool with 50% larger total L3 cache (12 MB vs 8 MB).

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

Xeon E3-1275 v3 is still the faster CPU overall, but Xeon E7530 is easier to justify if budget matters more than peak performance. Xeon E3-1275 v3 comes in at an unclear MSRP at unclear MSRP versus $1,391 MSRP, and it still gives you a 0.8% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon E7530 is still stronger for heavier multi-core work with 0.2% better PassMark. Xeon E7530 is also 100.0% better value on MSRP (5.2 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Xeon E3-1275 v3 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2013 vs 2010). That makes it the safer long-term bet.

Xeon E3-1275 v3 vs Xeon E7530 Technical Specifications

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

Xeon E3-1275 v3

The Xeon E3-1275 v3 is manufactured by Intel. It was released in 2 June 2013 (12 years ago). It is based on the Haswell-WS (2013−2014) architecture. It features 4 cores and 8 threads. Base frequency is 3.5 GHz, with boost up to 3.9 GHz. L3 cache: 8192 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, DDR4. Passmark benchmark score: 7,220 points. Launch price was $531.

Xeon E7530

The Xeon E7530 is manufactured by Intel. It was released in 2015-01-01. It features 6 cores and 12 threads. Base frequency is 1.87 GHz, with boost up to 2.13 GHz. L3 cache: 12 MB L3 Cache. Built on 45 nm process technology. Socket: LGA1567. Thermal design power (TDP): 105 Watt. Passmark benchmark score: 7,231 points. Launch price was $800.

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Processing Power

The Xeon E3-1275 v3 packs 4 cores / 8 threads, while the Xeon E7530 offers 6 cores / 12 threads — the Xeon E7530 has 2 more cores. Boost clocks reach 3.9 GHz on the Xeon E3-1275 v3 versus 2.13 GHz on the Xeon E7530 — a 58.7% clock advantage for the Xeon E3-1275 v3 (base: 3.5 GHz vs 1.87 GHz). The Xeon E3-1275 v3 is built on the Haswell-WS (2013−2014) architecture. In PassMark, the Xeon E3-1275 v3 scores 7,220 against the Xeon E7530's 7,231 — a 0.2% lead for the Xeon E7530. L3 cache: 8192 kB (total) on the Xeon E3-1275 v3 vs 12 MB L3 Cache on the Xeon E7530.

Feature	Xeon E3-1275 v3	Xeon E7530
Cores / Threads	4 / 8	6 / 12+50%
Boost Clock	3.9 GHz+83%	2.13 GHz
Base Clock	3.5 GHz+87%	1.87 GHz
L3 Cache	8192 kB (total)	12 MB L3 Cache+50%
L2 Cache	256 kB (per core)	—
Process	22 nm-51%	45 nm
Architecture	Haswell-WS (2013−2014)	—
PassMark	7,220	7,231

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Memory & Platform

The Xeon E3-1275 v3 uses the LGA1150 socket (PCIe 3.0), while the Xeon E7530 uses LGA1567 (PCIe 2.0) — making them incompatible on the same motherboard.