Opteron 6276 vs Xeon E5-2420 v2

Opteron 6276 vs Xeon E5-2420 v2 Performance Spectrum

Opteron 6276

16 / 16

6,348

0.0%

Ryzen Embedded V1202B

Ryzen Embedded R1606G

Athlon Gold 7220U

Ryzen 3 PRO 2300U

Ryzen Threadripper 2920X

Ryzen 9 5900XT

Ryzen Threadripper 3970X

Ryzen Threadripper PRO 7965WX

Xeon E5-2420 v2

6 / 12

6,349

0.0%

About PassMark

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.

Opteron 6276 vs Xeon E5-2420 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.

Opteron 6276 vs Xeon E5-2420 v2: Pros, Cons & Final Verdict

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

Opteron 6276

2011

Why buy it

Trade-offs

❌Lower PassMark (6,348 vs 6,349).
❌Smaller total L3 cache (8 MB vs 15 MB).
❌Launch MSRP is still $788 MSRP, while Xeon E5-2420 v2 mostly shows up through inconsistent older-market listings.
❌43.8% higher power demand at 115W vs 80W.

Xeon E5-2420 v2

2013

Why buy it

✅+0% higher PassMark.
✅+87.5% larger total L3 cache (15 MB vs 8 MB).
✅Draws 80W instead of 115W, a 35W reduction.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Quick Answers

So, is Xeon E5-2420 v2 better than Opteron 6276?

It depends on what you want from the system. For gaming, Opteron 6276 is ahead with a 2.3% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Xeon E5-2420 v2 pulls ahead with 0% better PassMark. Xeon E5-2420 v2 also has the bigger cache pool with 87.5% larger total L3 cache (15 MB vs 8 MB).

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

For streaming, content creation, and heavier multitasking, Xeon E5-2420 v2 is the stronger fit. You are getting 0% better PassMark, backed by 6 cores and 12 threads. It also has the larger cache pool with 87.5% larger total L3 cache (15 MB vs 8 MB).

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

Xeon E5-2420 v2 is still the faster CPU overall, but Opteron 6276 is easier to justify if budget matters more than peak performance. Xeon E5-2420 v2 comes in at an unclear MSRP at unclear MSRP versus $788 MSRP, and it still gives you 0% better PassMark. The compromise is that Opteron 6276 is still the better pure gaming CPU with a 2.3% average FPS lead across 50 shared CPU game tests in our data. Opteron 6276 is also 100.0% better value on MSRP (8.1 vs 0.0 PassMark/$), 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 E5-2420 v2 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2013 vs 2011), 87.5% larger total L3 cache (15 MB vs 8 MB), and more multi-core headroom with 6 cores / 12 threads instead of 16/16. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Opteron 6276 vs Xeon E5-2420 v2 Technical Specifications

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

Opteron 6276

The Opteron 6276 is manufactured by AMD. It was released in 14 November 2011 (14 years ago). It is based on the Interlagos (2011−2012) architecture. It features 16 cores and 16 threads. Base frequency is 2.3 GHz, with boost up to 3.2 GHz. L3 cache: 8 MB (total). L2 cache: 2 MB (per module). Built on 32 nm process technology. Socket: G34. Thermal design power (TDP): 115 Watt. Memory support: DDR3. Passmark benchmark score: 6,348 points. Launch price was $119.

Xeon E5-2420 v2

The Xeon E5-2420 v2 is manufactured by Intel. It was released in 1 September 2013 (12 years ago). It is based on the Ivy Bridge-EN (2013−2014) architecture. It features 6 cores and 12 threads. Base frequency is 2.2 GHz, with boost up to 2.7 GHz. L3 cache: 15 MB (total). L2 cache: 256 kB (per core). Built on 22 nm process technology. Socket: LGA1356. Thermal design power (TDP): 80 Watt. Memory support: DDR3. Passmark benchmark score: 6,349 points. Launch price was $480.

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Processing Power

The Opteron 6276 packs 16 cores / 16 threads, while the Xeon E5-2420 v2 offers 6 cores / 12 threads — the Opteron 6276 has 10 more cores. Boost clocks reach 3.2 GHz on the Opteron 6276 versus 2.7 GHz on the Xeon E5-2420 v2 — a 16.9% clock advantage for the Opteron 6276 (base: 2.3 GHz vs 2.2 GHz). The Opteron 6276 uses the Interlagos (2011−2012) architecture (32 nm), while the Xeon E5-2420 v2 uses Ivy Bridge-EN (2013−2014) (22 nm). In PassMark, the Opteron 6276 scores 6,348 against the Xeon E5-2420 v2's 6,349 — a 0% lead for the Xeon E5-2420 v2. L3 cache: 8 MB (total) on the Opteron 6276 vs 15 MB (total) on the Xeon E5-2420 v2.

Feature	Opteron 6276	Xeon E5-2420 v2
Cores / Threads	16 / 16+167%	6 / 12
Boost Clock	3.2 GHz+19%	2.7 GHz
Base Clock	2.3 GHz+5%	2.2 GHz
L3 Cache	8 MB (total)	15 MB (total)+88%
L2 Cache	2 MB (per module)+700%	256 kB (per core)
Process	32 nm	22 nm-31%
Architecture	Interlagos (2011−2012)	Ivy Bridge-EN (2013−2014)
PassMark	6,348	6,349

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Memory & Platform

The Opteron 6276 uses the G34 socket (PCIe 2.0), while the Xeon E5-2420 v2 uses LGA1356 (PCIe 3.0) — making them incompatible on the same motherboard.