Opteron 6281 vs Xeon E5-2650

Performance Spectrum - CPU

Opteron 6281

16 / 16

7,279

0.0%

Ryzen Threadripper PRO 7965WX

Xeon E5-2650

8 / 16

7,349

+1.0%

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.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money. The Opteron 6281 is positioned at rank 44 and the Xeon E5-2650 is on rank 406, so the Opteron 6281 offers better cost-efficiency for playing games.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar Opteron 6281

#1

Xeon Platinum 8454H

MSRP: $6540|Avg: N/A

1142%

#6

Xeon Gold 6240R

MSRP: $2444|Avg: N/A

216%

#10

Xeon 6337P

MSRP: $60|Avg: $5

192%

#15

EPYC 9174F

MSRP: $194|Avg: $30

148%

#44

Opteron 6281

MSRP: $988|Avg: $419

100%

#49

Xeon E5-4607 v2

MSRP: $42|Avg: $77

91%

#50

Xeon Gold 6238R

MSRP: $2612|Avg: N/A

80%

#52

Opteron 6282 SE

MSRP: $1019|Avg: $770

88%

#53

Opteron 6276

MSRP: $788|Avg: $397

87%

#55

Opteron 6344

MSRP: $415|Avg: $49

83%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Xeon E5-2650

#1

Xeon Platinum 8454H

MSRP: $6540|Avg: N/A

5655%

#6

Xeon Gold 6240R

MSRP: $2444|Avg: N/A

1068%

#10

Xeon 6337P

MSRP: $60|Avg: $5

949%

#15

EPYC 9174F

MSRP: $194|Avg: $30

733%

#274

EPYC 7313

MSRP: $1083|Avg: $764

98%

#275

Xeon w5-2455X

MSRP: $1039|Avg: $1049

97%

#276

Xeon w3-2425

MSRP: $529|Avg: $529

97%

#278

Xeon Gold 5416S

MSRP: $1445|Avg: N/A

95%

#406

Xeon E5-2650

MSRP: N/A|Avg: N/A

100%

#416

Xeon E3-1276 v3

MSRP: $213|Avg: $244

96%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Use Case Distinction: This is a comparison between a Professional Workstation processor ($0) and a Consumer Desktop CPU. The Xeon E5-2650 is engineered for massive parallel workloads (rendering, scientific simulations), offering significantly higher core counts.

Insight	Opteron 6281	Xeon E5-2650
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	⚠️ Higher cost ($419)	✅ More affordable ($0)
Longevity	🛑 Legacy (Interlagos (2011−2012) / 32 nm)	🛑 Legacy (Sandy Bridge-EP (2012) / 32 nm)

💎 Value Proposition

The Opteron 6281 ($419), however, is optimized for mixed workloads and gaming. For most users, it offers superior single-thread performance and responsiveness at a fraction of the cost ($419 less, Infinity% cheaper), making it the better choice for daily use and gaming.

Insight	Opteron 6281	Xeon E5-2650
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	⚠️ Higher cost ($419)	✅ More affordable ($0)

Performance Check

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Opteron 6281 Benchmark Check

Xeon E5-2650 Benchmark Check

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Technical Specifications

Side-by-side comparison of Opteron 6281 and Xeon E5-2650

Opteron 6281

The Opteron 6281 is manufactured by AMD. It was released in 1 May 2012 (13 years ago). It is based on the Interlagos (2011−2012) architecture. It features 16 cores and 16 threads. Base frequency is 2.5 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): 130 Watt. Memory support: DDR3. Passmark benchmark score: 7,279 points. Launch price was $988.

Xeon E5-2650

The Xeon E5-2650 is manufactured by Intel. It was released in 6 March 2012 (13 years ago). It is based on the Sandy Bridge-EP (2012) architecture. It features 8 cores and 16 threads. Base frequency is 2 GHz, with boost up to 2.8 GHz. L3 cache: 20480 kB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA2011. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 7,349 points. Launch price was $91.

⚡

Processing Power

The Opteron 6281 packs 16 cores / 16 threads, while the Xeon E5-2650 offers 8 cores / 16 threads — the Opteron 6281 has 8 more cores. Boost clocks reach 3.2 GHz on the Opteron 6281 versus 2.8 GHz on the Xeon E5-2650 — a 13.3% clock advantage for the Opteron 6281 (base: 2.5 GHz vs 2 GHz). The Opteron 6281 uses the Interlagos (2011−2012) architecture (32 nm), while the Xeon E5-2650 uses Sandy Bridge-EP (2012) (32 nm). In PassMark, the Opteron 6281 scores 7,279 against the Xeon E5-2650's 7,349 — a 1% lead for the Xeon E5-2650. L3 cache: 8 MB (total) on the Opteron 6281 vs 20480 kB (total) on the Xeon E5-2650.

Feature	Opteron 6281	Xeon E5-2650
Cores / Threads	16 / 16+100%	8 / 16
Boost Clock	3.2 GHz+14%	2.8 GHz
Base Clock	2.5 GHz+25%	2 GHz
L3 Cache	8 MB (total)	20480 kB (total)+150%
L2 Cache	2 MB (per module)+700%	256 kB (per core)
Process	32 nm	32 nm
Architecture	Interlagos (2011−2012)	Sandy Bridge-EP (2012)
PassMark	7,279	7,349

🧠

Memory & Platform

The Opteron 6281 uses the G34 socket (PCIe 2.0), while the Xeon E5-2650 uses LGA2011 (PCIe 5.0) — making them incompatible on the same motherboard.

Feature	Opteron 6281	Xeon E5-2650
Socket	G34	LGA2011
PCIe Generation	PCIe 2.0	PCIe 5.0+150%
Max RAM Speed	—	DDR3-1600
Max RAM Capacity	—	384 GB
RAM Channels	—	4
ECC Support	—	✅
PCIe Lanes	—	40