Core 2 Duo T9900 vs Pentium 997

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 Duo T9900 vs Pentium 997 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 Duo T9900 vs Pentium 997: 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 Duo T9900

2009

Why buy it

✅+200% larger total L3 cache (6 MB vs 2 MB).

Trade-offs

❌Lower PassMark (1,204 vs 1,215).
❌105.9% higher power demand at 35W vs 17W.

Pentium 997

2012

Why buy it

✅Draws 17W instead of 35W, a 18W reduction.

Trade-offs

❌Smaller total L3 cache (2 MB vs 6 MB).
❌Launch MSRP is still $134 MSRP, while Core 2 Duo T9900 mostly shows up through inconsistent older-market listings.

Quick Answers

So, is Pentium 997 better than Core 2 Duo T9900?

Yes. Pentium 997 is the better all-around CPU here. It gives you 0.9% 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 997 has the edge because it leads the single-thread side of this matchup with 2185.7% higher max boost clock.

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

For streaming, content creation, and heavier multitasking, Pentium 997 is the stronger fit. You are getting 0.9% better PassMark, backed by 2 cores and 2 threads.

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

Pentium 997 is the better buy right now. Pentium 997 comes in at an unclear MSRP at $134 MSRP versus unclear MSRP, and it still gives you 0.9% higher PassMark. It is also 100.0% better value on MSRP (9.1 vs 0.0 PassMark/$), 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 997 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2012 vs 2009) 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 Duo T9900 vs Pentium 997 Technical Specifications

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

Core 2 Duo T9900

The Core 2 Duo T9900 is manufactured by Intel. It was released in 2 June 2009 (16 years ago). It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Base frequency is 3.06 GHz, with boost up to 0.07 GHz. L3 cache: 6 MB L2 Cache. L2 cache: 6 MB (total). Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 35 Watt. Memory support: DDR2, DDR3. Passmark benchmark score: 1,204 points. Launch price was $530.

Pentium 997

The Pentium 997 is manufactured by Intel. It was released in 1 September 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 1.6 GHz, with boost up to 1.6 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: BGA1023. Thermal design power (TDP): 17 Watt. Memory support: DDR3. Passmark benchmark score: 1,215 points. Launch price was $134.

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Processing Power

Both the Core 2 Duo T9900 and Pentium 997 share an identical 2-core/2-thread configuration. Boost clocks reach 0.07 GHz on the Core 2 Duo T9900 versus 1.6 GHz on the Pentium 997 — a 183.2% clock advantage for the Pentium 997 (base: 3.06 GHz vs 1.6 GHz). The Core 2 Duo T9900 uses the Penryn (2008−2011) architecture (45 nm), while the Pentium 997 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Core 2 Duo T9900 scores 1,204 against the Pentium 997's 1,215 — a 0.9% lead for the Pentium 997. L3 cache: 6 MB L2 Cache on the Core 2 Duo T9900 vs 2 MB (total) on the Pentium 997.

Feature	Core 2 Duo T9900	Pentium 997
Cores / Threads	2 / 2	2 / 2
Boost Clock	0.07 GHz	1.6 GHz+2186%
Base Clock	3.06 GHz+91%	1.6 GHz
L3 Cache	6 MB L2 Cache+200%	2 MB (total)
L2 Cache	6 MB (total)	256K (per core)+4167%
Process	45 nm	32 nm-29%
Architecture	Penryn (2008−2011)	Sandy Bridge (2011−2013)
PassMark	1,204	1,215

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Memory & Platform

The Core 2 Duo T9900 uses the PGA478 socket (PCIe 1.1), while the Pentium 997 uses BGA1023 (PCIe 2.0) — making them incompatible on the same motherboard.