Celeron G5900 vs Core 2 Duo T7800

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 G5900 vs Core 2 Duo T7800 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 G5900 vs Core 2 Duo T7800: Pros, Cons & Final Verdict

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

Celeron G5900

2020

Why buy it

✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics 610, while Core 2 Duo T7800 needs a discrete GPU.

Trade-offs

❌Launch MSRP is still $50 MSRP, while Core 2 Duo T7800 mostly shows up through inconsistent older-market listings.
❌1350% higher power demand at 58W vs 4W.

Core 2 Duo T7800

2007

Why buy it

✅Draws 4W instead of 58W, a 54W reduction.

Trade-offs

❌Lower PassMark (2,663 vs 2,682).
❌No integrated graphics, while Celeron G5900 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Celeron G5900 better than Core 2 Duo T7800?

Yes. Celeron G5900 is the better all-around CPU here. It gives you a 1.2% average FPS lead across 50 shared CPU game tests in our data, 0.7% better PassMark, 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 G5900 is the better pick. According to our tests, it delivers 1.2% 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 G5900 is the stronger fit. You are getting 0.7% better PassMark, backed by 2 cores and 2 threads.

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

Celeron G5900 is the better buy right now. Celeron G5900 comes in at an unclear MSRP at $50 MSRP versus unclear MSRP, and it still gives you a 1.2% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (53.6 vs 0.0 PassMark/$), 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 G5900 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2007) 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 G5900 vs Core 2 Duo T7800 Technical Specifications

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

Celeron G5900

The Celeron G5900 is manufactured by Intel. It was released in 2007-01-01. It is based on the Comet Lake (2020−2025) architecture. It features 2 cores and 2 threads. Base frequency is 3.4 GHz, with boost up to 3.4 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 58 Watt. Memory support: DDR4-2666. Passmark benchmark score: 2,682 points. Launch price was $69.

Core 2 Duo T7800

The Core 2 Duo T7800 is manufactured by Intel. It was released in 18 August 2007 (18 years ago). It is based on the Merom (2006−2008) architecture. It features 2 cores and 2 threads. Base frequency is 2.6 GHz, with boost up to 2.6 GHz. L3 cache: 0 kB. L2 cache: 4 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 35 Watt. Passmark benchmark score: 2,663 points. Launch price was $515.

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Processing Power

Both the Celeron G5900 and Core 2 Duo T7800 share an identical 2-core/2-thread configuration. Boost clocks reach 3.4 GHz on the Celeron G5900 versus 2.6 GHz on the Core 2 Duo T7800 — a 26.7% clock advantage for the Celeron G5900 (base: 3.4 GHz vs 2.6 GHz). The Celeron G5900 uses the Comet Lake (2020−2025) architecture (14 nm), while the Core 2 Duo T7800 uses Merom (2006−2008) (65 nm). In PassMark, the Celeron G5900 scores 2,682 against the Core 2 Duo T7800's 2,663 — a 0.7% lead for the Celeron G5900. L3 cache: 2 MB (total) on the Celeron G5900 vs 0 kB on the Core 2 Duo T7800.

Feature	Celeron G5900	Core 2 Duo T7800
Cores / Threads	2 / 2	2 / 2
Boost Clock	3.4 GHz+31%	2.6 GHz
Base Clock	3.4 GHz+31%	2.6 GHz
L3 Cache	2 MB (total)	0 kB
L2 Cache	256K (per core)+6300%	4 MB
Process	14 nm-78%	65 nm
Architecture	Comet Lake (2020−2025)	Merom (2006−2008)
PassMark	2,682	2,663
Geekbench 6 Single	850	—
Geekbench 6 Multi	1,600	—

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Memory & Platform

The Celeron G5900 uses the LGA1200 socket (PCIe 3.0), while the Core 2 Duo T7800 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Celeron G5900 versus DDR2-667 on the Core 2 Duo T7800 — the Celeron G5900 supports 299.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both feature 2-channel memory with ECC support. Chipset compatibility: H410,B460,H470,Z490,H510,B560,H570,Z590 (Celeron G5900) and GM965,PM965 (Core 2 Duo T7800).

Feature	Celeron G5900	Core 2 Duo T7800
Socket	LGA1200	PGA478
PCIe Generation	PCIe 3.0+173%	PCIe 1.1
Max RAM Speed	DDR4-2666+300%	DDR2-667
Max RAM Capacity	128 GB	—
RAM Channels	2	2
ECC Support	Yes	No
PCIe Lanes	16	—

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Advanced Features

Neither processor supports overclocking. Both support VT-x virtualization. The Celeron G5900 includes integrated graphics (UHD Graphics 610), while the Core 2 Duo T7800 requires a dedicated GPU. Primary use case: Celeron G5900 targets Budget, Core 2 Duo T7800 targets Budget. Direct competitor: Celeron G5900 rivals Pentium Gold G6400; Core 2 Duo T7800 rivals Athlon Silver 3050U.