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.

Celeron 6305 vs Core 2 Duo T5870 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.

Celeron 6305 vs Core 2 Duo T5870: Pros, Cons & Final Verdict

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

Celeron 6305

2020

Why buy it

✅+266.5% higher Geekbench single-core performance for gaming and desktop responsiveness.
✅+100% larger total L3 cache (4 MB vs 2 MB).
✅100+% more PCIe lanes (4 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics for 11th Gen, while Core 2 Duo T5870 needs a discrete GPU.

Trade-offs

❌Launch MSRP is still $107 MSRP, while Core 2 Duo T5870 mostly shows up through inconsistent older-market listings.
❌25% higher power demand at 2.5W vs 2W.

Core 2 Duo T5870

2008

Why buy it

✅Draws 2W instead of 3W, a 1W reduction.

Trade-offs

❌Lower Geekbench single-core performance for gaming (203 vs 744).
❌Lower Geekbench multi-core (314 vs 1,236).
❌Smaller total L3 cache (2 MB vs 4 MB).
❌No integrated graphics, while Celeron 6305 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Celeron 6305 better than Core 2 Duo T5870?

Yes. Celeron 6305 is the better all-around CPU here. It gives you a 1.6% average FPS lead across 50 shared CPU game tests in our data, 293.6% better Geekbench multi-core, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Celeron 6305 is the better pick. According to our tests, it delivers 1.6% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Celeron 6305 is the stronger fit. You are getting 293.6% better Geekbench multi-core, backed by 2 cores and 2 threads. It also has the larger cache pool with 100% larger total L3 cache (4 MB vs 2 MB).

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

Celeron 6305 is the better buy right now. Celeron 6305 comes in at an unclear MSRP at $107 MSRP versus unclear MSRP, and it still gives you a 1.6% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (19.4 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Celeron 6305 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2008), 100% larger total L3 cache (4 MB vs 2 MB), and more multi-core headroom with 2 cores / 2 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Celeron 6305 vs Core 2 Duo T5870 Technical Specifications

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

Celeron 6305

The Celeron 6305 is manufactured by Intel. It was released in 2007-01-01. It is based on the Tiger Lake-U (2020−2021) architecture. It features 2 cores and 2 threads. Max frequency: 1.8 GHz. L3 cache: 4 MB. L2 cache: 2.5 MB. Built on 10 nm SuperFin process technology. Socket: FCBGA1449. Thermal design power (TDP): 2.5 MB + 4 MB. Memory support: DDR4. Passmark benchmark score: 2,077 points. Launch price was $69.

Core 2 Duo T5870

The Core 2 Duo T5870 is manufactured by Intel. It was released in 2008-01-01. It is based on the Merom (2006−2008) architecture. It features 2 cores and 2 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 2 MB L2 Cache. L2 cache: 2 MB. Built on 65 nm process technology. Thermal design power (TDP): 35 Watt. Passmark benchmark score: 2,089 points. Launch price was $249.

⚡

Processing Power

Both the Celeron 6305 and Core 2 Duo T5870 share an identical 2-core/2-thread configuration. Boost clocks reach 1.8 GHz on the Celeron 6305 versus 2 GHz on the Core 2 Duo T5870 — a 10.5% clock advantage for the Core 2 Duo T5870. The Celeron 6305 uses the Tiger Lake-U (2020−2021) architecture (10 nm SuperFin), while the Core 2 Duo T5870 uses Merom (2006−2008) (65 nm). In PassMark, the Celeron 6305 scores 2,077 against the Core 2 Duo T5870's 2,089 — a 0.6% lead for the Core 2 Duo T5870. Geekbench 6 single-core — the metric most relevant to gaming — records 744 vs 203, a 114.3% lead for the Celeron 6305 that directly translates to higher frame rates. Multi-core Geekbench: 1,236 vs 314 (119% advantage for the Celeron 6305). L3 cache: 4 MB on the Celeron 6305 vs 2 MB L2 Cache on the Core 2 Duo T5870.

Feature	Celeron 6305	Core 2 Duo T5870
Cores / Threads	2 / 2	2 / 2
Boost Clock	1.8 GHz	2 GHz+11%
Base Clock	—	2 GHz
L3 Cache	4 MB+100%	2 MB L2 Cache
L2 Cache	2.5 MB+25%	2 MB
Process	10 nm SuperFin-85%	65 nm
Architecture	Tiger Lake-U (2020−2021)	Merom (2006−2008)
PassMark	2,077	2,089
Geekbench 6 Single	744+267%	203
Geekbench 6 Multi	1,236+294%	314

🧠

Memory & Platform

Maximum memory speed reaches DDR4-3200 on the Celeron 6305 versus DDR2-800 on the Core 2 Duo T5870 — the Celeron 6305 supports 300% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron 6305 supports up to 64 GB of RAM compared to 4 GB — 1500% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 4 (Celeron 6305) vs 0 (Core 2 Duo T5870) — the Celeron 6305 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Tiger Lake-U (Celeron 6305) and GM965,GM45,PM45 (Core 2 Duo T5870).

Feature	Celeron 6305	Core 2 Duo T5870
Socket	FCBGA1449	—
PCIe Generation	PCIe 4.0+264%	PCIe 1.1
Max RAM Speed	DDR4-3200+300%	DDR2-800
Max RAM Capacity	64 GB+1500%	4 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	4	0

🔧

Advanced Features

Neither processor supports overclocking. Virtualization support: VT-x, VT-d (Celeron 6305) vs VT-x (Core 2 Duo T5870). The Celeron 6305 includes integrated graphics (UHD Graphics for 11th Gen), while the Core 2 Duo T5870 requires a dedicated GPU. Primary use case: Celeron 6305 targets Budget, Core 2 Duo T5870 targets Legacy Mobile. Direct competitor: Celeron 6305 rivals Pentium Gold 7505.