Core 2 Extreme X6800 vs Pentium G640T

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 2 Extreme X6800 vs Pentium G640T 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 2 Extreme X6800 vs Pentium G640T: Pros, Cons & Final Verdict

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

Core 2 Extreme X6800

2006

Why buy it

Trade-offs

❌Lower PassMark (1,118 vs 1,139).
❌114.3% higher power demand at 75W vs 35W.

Pentium G640T

2012

Why buy it

✅Draws 35W instead of 75W, a 40W reduction.

Trade-offs

❌Launch MSRP is still $64 MSRP, while Core 2 Extreme X6800 mostly shows up through inconsistent older-market listings.

Quick Answers

So, is Pentium G640T better than Core 2 Extreme X6800?

Yes. Pentium G640T is the better all-around CPU here. It gives you a 1.8% average FPS lead across 50 shared CPU game tests in our data, 1.9% 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, Pentium G640T is the better pick. According to our tests, it delivers 1.8% 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, Pentium G640T is the stronger fit. You are getting 1.9% better PassMark, backed by 2 cores and 2 threads.

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

Pentium G640T is the better buy right now. Pentium G640T comes in at an unclear MSRP at $64 MSRP versus unclear MSRP, and it still gives you a 1.8% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (17.8 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Pentium G640T makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2012 vs 2006) 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.

Core 2 Extreme X6800 vs Pentium G640T Technical Specifications

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

Core 2 Extreme X6800

The Core 2 Extreme X6800 is manufactured by Intel. It was released in 27 July 2006 (19 years ago). It is based on the Conroe XE (2006) architecture. It features 2 cores and 2 threads. Base frequency is 2.933 GHz, with boost up to 0.93 GHz. L3 cache: 0 kB. L2 cache: 4 MB (total). Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 75 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,118 points. Launch price was $999.

Pentium G640T

The Pentium G640T is manufactured by Intel. It was released in 2007-01-01. It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.4 GHz, with boost up to 2.4 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,139 points. Launch price was $69.

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Processing Power

Both the Core 2 Extreme X6800 and Pentium G640T share an identical 2-core/2-thread configuration. Boost clocks reach 0.93 GHz on the Core 2 Extreme X6800 versus 2.4 GHz on the Pentium G640T — a 88.3% clock advantage for the Pentium G640T (base: 2.933 GHz vs 2.4 GHz). The Core 2 Extreme X6800 uses the Conroe XE (2006) architecture (65 nm), while the Pentium G640T uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Core 2 Extreme X6800 scores 1,118 against the Pentium G640T's 1,139 — a 1.9% lead for the Pentium G640T. L3 cache: 0 kB on the Core 2 Extreme X6800 vs 3 MB (total) on the Pentium G640T.

Feature	Core 2 Extreme X6800	Pentium G640T
Cores / Threads	2 / 2	2 / 2
Boost Clock	0.93 GHz	2.4 GHz+158%
Base Clock	2.933 GHz+22%	2.4 GHz
L3 Cache	0 kB	3 MB (total)
L2 Cache	4 MB (total)+1500%	256 kB (per core)
Process	65 nm	32 nm-51%
Architecture	Conroe XE (2006)	Sandy Bridge (2011−2013)
PassMark	1,118	1,139+2%

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Memory & Platform

The Core 2 Extreme X6800 uses the LGA775 socket (PCIe 1.1), while the Pentium G640T uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.