Core i3-8300 vs Opteron 6276

Core i3-8300 vs Opteron 6276 Performance Spectrum

Core i3-8300

4 / 4

6,370

+0.3%

6,348

0.0%

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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.

Core i3-8300 vs Opteron 6276 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 i3-8300 vs Opteron 6276: Pros, Cons & Final Verdict

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

Core i3-8300

2018

Why buy it

✅+0.3% higher PassMark.
✅Costs $650 less on MSRP ($138 MSRP vs $788 MSRP).
✅Delivers 473.0% more PassMark for each dollar spent, at 46.2 vs 8.1 PassMark/$ ($138 MSRP vs $788 MSRP).
✅Draws 62W instead of 115W, a 53W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Opteron 6276 across 49 shared CPU benchmark tests.
❌Less compelling for workstation-style loads than Opteron 6276, which brings 16 cores / 16 threads.

Opteron 6276

2011

Why buy it

✅Better for gaming: +8.8% higher average FPS across 49 shared CPU benchmark tests.
✅Better for workstations and heavier parallel workloads: 16 cores / 16 threads.

Trade-offs

❌Lower PassMark (6,348 vs 6,370).
❌Lower PassMark per dollar, at 8.1 vs 46.2 PassMark/$ ($788 MSRP vs $138 MSRP).
❌85.5% higher power demand at 115W vs 62W.
❌No integrated graphics, while Core i3-8300 can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike Core i3-8300.

Quick Answers

So, is Core i3-8300 better than Opteron 6276?

Not really, because they are built for different jobs. Opteron 6276 makes more sense for workstation-style multi-core throughput, while Core i3-8300 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 i3-8300 is the stronger fit. You are getting 0.3% better PassMark, backed by 4 cores and 4 threads.

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

Core i3-8300 is the better buy right now. Core i3-8300 comes in $650 cheaper on MSRP at $138 MSRP versus $788 MSRP, and it still gives you 0.3% better PassMark. The compromise is that Opteron 6276 is still the better pure gaming CPU with a 8.8% average FPS lead across 49 shared CPU game tests in our data. It is also 473.0% better value on MSRP (46.2 vs 8.1 PassMark/$), 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 i3-8300 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2018 vs 2011) and more multi-core headroom with 4 cores / 4 threads instead of 16/16. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i3-8300 vs Opteron 6276 Technical Specifications

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

Core i3-8300

The Core i3-8300 is manufactured by Intel. It was released in 14 February 2018 (7 years ago). It is based on the Coffee Lake (2017−2019) architecture. It features 4 cores and 4 threads. Base frequency is 3.7 GHz, with boost up to 3.7 GHz. L3 cache: 8 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 62 Watt. Memory support: DDR4-2400. Passmark benchmark score: 6,370 points. Launch price was $138.

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.

⚡

Processing Power

The Core i3-8300 packs 4 cores / 4 threads, while the Opteron 6276 offers 16 cores / 16 threads — the Opteron 6276 has 12 more cores. Boost clocks reach 3.7 GHz on the Core i3-8300 versus 3.2 GHz on the Opteron 6276 — a 14.5% clock advantage for the Core i3-8300 (base: 3.7 GHz vs 2.3 GHz). The Core i3-8300 uses the Coffee Lake (2017−2019) architecture (14 nm), while the Opteron 6276 uses Interlagos (2011−2012) (32 nm). In PassMark, the Core i3-8300 scores 6,370 against the Opteron 6276's 6,348 — a 0.3% lead for the Core i3-8300. Both processors carry 8 MB (total) of L3 cache.

Feature	Core i3-8300	Opteron 6276
Cores / Threads	4 / 4	16 / 16+300%
Boost Clock	3.7 GHz+16%	3.2 GHz
Base Clock	3.7 GHz+61%	2.3 GHz
L3 Cache	8 MB (total)	8 MB (total)
L2 Cache	256K (per core)+12700%	2 MB (per module)
Process	14 nm-56%	32 nm
Architecture	Coffee Lake (2017−2019)	Interlagos (2011−2012)
PassMark	6,370	6,348
Geekbench 6 Single	1,327	—

🧠

Memory & Platform

The Core i3-8300 uses the LGA1151 socket (PCIe 3.0), while the Opteron 6276 uses G34 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Core i3-8300	Opteron 6276
Socket	LGA1151	G34
PCIe Generation	PCIe 3.0+50%	PCIe 2.0
Max RAM Speed	DDR4-2400	—
Max RAM Capacity	64 GB	—
RAM Channels	2	—
ECC Support	Yes	—
PCIe Lanes	16	—

🔧

Advanced Features

Virtualization: VT-x, VT-d, EPT (Core i3-8300) / not specified (Opteron 6276). The Core i3-8300 includes integrated graphics (UHD Graphics 630), while the Opteron 6276 requires a dedicated GPU. Primary use case: Core i3-8300 targets Mainstream Desktop. Direct competitor: Core i3-8300 rivals Ryzen 3 2300X.

Feature	Core i3-8300	Opteron 6276
Integrated GPU	Yes	—
IGPU Model	UHD Graphics 630	—
Unlocked	No	—
AVX-512	No	—
Virtualization	VT-x, VT-d, EPT	—
Target Use	Mainstream Desktop	—

💰

Value Analysis

At launch, the Core i3-8300 was priced at $138, while the Opteron 6276 came in at $788. On launch pricing ($138 vs $788), Core i3-8300 was $650 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i3-8300 delivers 46.2 pts/$ vs 8.1 pts/$ for the Opteron 6276 — making the Core i3-8300 the 140.6% better value option.

Feature	Core i3-8300	Opteron 6276
MSRP	$138-82%	$788
Performance per Dollar	46.2+470%	8.1
Release Date	2018	2011

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