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 B800 vs Celeron M 575 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 B800 vs Celeron M 575: Pros, Cons & Final Verdict

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

Celeron B800

2011

Why buy it

✅Costs $6 less on MSRP ($80 MSRP vs $86 MSRP).
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD Graphics (Sandy Bridge), while Celeron M 575 needs a discrete GPU.

Trade-offs

❌Lower PassMark (1,910 vs 1,917).
❌3400% higher power demand at 35W vs 1W.

Celeron M 575

2008

Why buy it

✅Draws 1W instead of 35W, a 34W reduction.

Trade-offs

❌
7.5% HIGHER MSRP
$86 MSRPvs$80 MSRP
❌No integrated graphics, while Celeron B800 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Celeron M 575 better than Celeron B800?

Yes. Celeron M 575 is the better all-around CPU here. It gives you a 0.8% average FPS lead across 50 shared CPU game tests in our data and 0.4% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Celeron M 575 is the better pick. According to our tests, it delivers 0.8% 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 M 575 is the stronger fit. You are getting 0.4% better PassMark, backed by 1 cores and 1 threads.

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

Celeron M 575 is still the much better call for a fresh build. Celeron M 575 comes in 7.5% more expensive on MSRP at $86 MSRP versus $80 MSRP, and it still gives you a 0.8% average FPS lead across 50 shared CPU game tests in our data. Celeron B800 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2011 platform. Even with 7.1% better value on paper (23.9 vs 22.3 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on PGA988.

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

Celeron B800 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2011 vs 2008). That makes it the safer long-term bet.

Celeron B800 vs Celeron M 575 Technical Specifications

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

Celeron B800

The Celeron B800 is manufactured by Intel. It was released in 19 June 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 1.5 GHz, with boost up to 1.5 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: PGA988. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,910 points. Launch price was $80.

Celeron M 575

The Celeron M 575 is manufactured by Intel. It was released in 1 June 2008 (17 years ago). It is based on the Merom (2006−2008) architecture. It features 1 cores and 1 threads. Max frequency: 2 GHz. L2 cache: 1 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 1 MB. Passmark benchmark score: 1,917 points. Launch price was $86.

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Processing Power

The Celeron B800 packs 2 cores / 2 threads, while the Celeron M 575 offers 1 cores / 1 threads — the Celeron B800 has 1 more core. Boost clocks reach 1.5 GHz on the Celeron B800 versus 2 GHz on the Celeron M 575 — a 28.6% clock advantage for the Celeron M 575. The Celeron B800 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Celeron M 575 uses Merom (2006−2008) (65 nm). In PassMark, the Celeron B800 scores 1,910 against the Celeron M 575's 1,917 — a 0.4% lead for the Celeron M 575.

Feature	Celeron B800	Celeron M 575
Cores / Threads	2 / 2+100%	1 / 1
Boost Clock	1.5 GHz	2 GHz+33%
Base Clock	1.5 GHz	—
L3 Cache	2 MB (total)	—
L2 Cache	256K (per core)+25500%	1 MB
Process	32 nm-51%	65 nm
Architecture	Sandy Bridge (2011−2013)	Merom (2006−2008)
PassMark	1,910	1,917

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Memory & Platform

The Celeron B800 uses the PGA988 socket (PCIe 2.0), while the Celeron M 575 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the Celeron B800 versus 800 on the Celeron M 575 — the Celeron B800 supports 66.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron B800 supports up to 16 GB of RAM compared to 4 GB — 300% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Celeron B800) vs 0 (Celeron M 575) — the Celeron B800 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: HM65,HM67,QM67,QM77 (Celeron B800) and GL40,GM45 (Celeron M 575).

Feature	Celeron B800	Celeron M 575
Socket	PGA988	PGA478
PCIe Generation	PCIe 2.0+82%	PCIe 1.1
Max RAM Speed	DDR3-1333+67%	800
Max RAM Capacity	16 GB+300%	4 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	0

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Advanced Features

Neither processor supports overclocking. Virtualization support: VT-x (Celeron B800) vs false (Celeron M 575). The Celeron B800 includes integrated graphics (HD Graphics (Sandy Bridge)), while the Celeron M 575 requires a dedicated GPU. Primary use case: Celeron B800 targets Budget. Direct competitor: Celeron B800 rivals Pentium 967; Celeron M 575 rivals Mobile Sempron SI-40.

Feature	Celeron B800	Celeron M 575
Integrated GPU	Yes	No
IGPU Model	HD Graphics (Sandy Bridge)	None
Unlocked	No	No
AVX-512	No	No
Virtualization	VT-x	false
Target Use	Budget	—

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Value Analysis

At launch, the Celeron B800 was priced at $80, while the Celeron M 575 came in at $86. On launch pricing ($80 vs $86), Celeron B800 was $6 cheaper. In terms of value on MSRP (PassMark points per dollar), the Celeron B800 delivers 23.9 pts/$ vs 22.3 pts/$ for the Celeron M 575 — making the Celeron B800 the 6.9% better value option.

Feature	Celeron B800	Celeron M 575
MSRP	$80-7%	$86
Performance per Dollar	23.9+7%	22.3
Release Date	2011	2008

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