Pentium G640 vs Pentium G840

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.

Pentium G640 vs Pentium G840 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.

Pentium G640 vs Pentium G840: Pros, Cons & Final Verdict

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

Pentium G640

2012

Why buy it

✅+0.1% higher PassMark.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Pentium G840

2011

Why buy it

Trade-offs

❌Lower PassMark (1,367 vs 1,369).

Quick Answers

So, is Pentium G640 better than Pentium G840?

Yes. Pentium G640 is the better all-around CPU here. It gives you 0.1% better PassMark and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

For gaming, this matchup is basically a tie in the data we have.

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

For streaming, content creation, and heavier multitasking, Pentium G640 is the stronger fit. You are getting 0.1% better PassMark, backed by 2 cores and 2 threads.

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

Pentium G640 is the better buy right now. Pentium G640 comes in in basically the same MSRP band at $64 MSRP versus $64 MSRP, and it still gives you 0.1% higher PassMark. It is also 0.1% better value on MSRP (21.4 vs 21.4 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Pentium G640 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2012 vs 2011) 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.

Pentium G640 vs Pentium G840 Technical Specifications

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

Pentium G640

The Pentium G640 is manufactured by Intel. It was released in 3 June 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,369 points. Launch price was $179.

Pentium G840

The Pentium G840 is manufactured by Intel. It was released in 22 May 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,367 points. Launch price was $60.

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Processing Power

Both the Pentium G640 and Pentium G840 share an identical 2-core/2-thread configuration. Boost clocks reach 2.8 GHz on the Pentium G640 versus 2.8 GHz on the Pentium G840 — identical boost frequencies (base: 2.8 GHz vs 2.8 GHz). Both are built on the Sandy Bridge (2011−2013) architecture using a 32 nm process. In PassMark, the Pentium G640 scores 1,369 against the Pentium G840's 1,367 — a 0.1% lead for the Pentium G640. Both processors carry 3 MB (total) of L3 cache.

Feature	Pentium G640	Pentium G840
Cores / Threads	2 / 2	2 / 2
Boost Clock	2.8 GHz	2.8 GHz
Base Clock	2.8 GHz	2.8 GHz
L3 Cache	3 MB (total)	3 MB (total)
L2 Cache	256 kB (per core)	256 kB (per core)
Process	32 nm	32 nm
Architecture	Sandy Bridge (2011−2013)	Sandy Bridge (2011−2013)
PassMark	1,369	1,367

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Memory & Platform

Both processors use the LGA1155 socket with PCIe 2.0.

Feature	Pentium G640	Pentium G840
Socket	LGA1155	LGA1155
PCIe Generation	PCIe 2.0	PCIe 2.0

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Value Analysis

At launch, the Pentium G640 was priced at $64, while the Pentium G840 came in at $64. On launch pricing ($64 vs $64), Pentium G840 was $0 cheaper. In terms of value on MSRP (PassMark points per dollar), the Pentium G640 delivers 21.4 pts/$ vs 21.4 pts/$ for the Pentium G840 — making the Pentium G640 the 0.1% better value option.

Feature	Pentium G640	Pentium G840
MSRP	$64	$64
Performance per Dollar	21.4	21.4
Release Date	2012	2011

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