Pentium 997 vs Phenom II X2 B55

Pentium 997 vs Phenom II X2 B55 Performance Spectrum

Pentium 997

2 / 2

1,215

0.0%

1,222

+0.6%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

About PassMark

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 997 vs Phenom II X2 B55 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 997 vs Phenom II X2 B55: Pros, Cons & Final Verdict

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

Pentium 997

2012

Why buy it

✅Draws 17W instead of 80W, a 63W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Phenom II X2 B55 across 50 shared CPU benchmark tests.
❌Lower PassMark (1,215 vs 1,222).
❌Smaller total L3 cache (2 MB vs 6 MB).
❌Launch MSRP is still $134 MSRP, while Phenom II X2 B55 mostly shows up through inconsistent older-market listings.

Phenom II X2 B55

2009

Why buy it

✅Better for gaming: +3.1% higher average FPS across 50 shared CPU benchmark tests.
✅+200% larger total L3 cache (6 MB vs 2 MB).

Trade-offs

❌370.6% higher power demand at 80W vs 17W.

Quick Answers

So, is Phenom II X2 B55 better than Pentium 997?

Yes. Phenom II X2 B55 is the better all-around CPU here. It gives you a 3.1% average FPS lead across 50 shared CPU game tests in our data and 0.6% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Phenom II X2 B55 is the better pick. According to our tests, it delivers 3.1% 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, Phenom II X2 B55 is the stronger fit. You are getting 0.6% better PassMark, backed by 2 cores and 2 threads. It also has the larger cache pool with 200% larger total L3 cache (6 MB vs 2 MB).

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

Phenom II X2 B55 is the easy recommendation for a fresh desktop build. Phenom II X2 B55 comes in at an unclear MSRP at unclear MSRP versus $134 MSRP, and it still gives you a 3.1% average FPS lead across 50 shared CPU game tests in our data. Pentium 997 only looks good on raw value math because it is a cheap legacy laptop chip, not because it is a real desktop gaming recommendation. It simply does not keep up in modern games, especially when the gap is already 3.1% in the shared gaming data.

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). That makes it the safer long-term bet.

Pentium 997 vs Phenom II X2 B55 Technical Specifications

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

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.

Phenom II X2 B55

The Phenom II X2 B55 is manufactured by AMD. It was released in 1 October 2009 (16 years ago). It is based on the Callisto (2009−2010) architecture. It features 2 cores and 2 threads. Base frequency is 3 GHz, with boost up to 3 GHz. L3 cache: 6 MB (total). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 80 Watt. Memory support: DDR3. Passmark benchmark score: 1,222 points. Launch price was $48.

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Processing Power

Both the Pentium 997 and Phenom II X2 B55 share an identical 2-core/2-thread configuration. Boost clocks reach 1.6 GHz on the Pentium 997 versus 3 GHz on the Phenom II X2 B55 — a 60.9% clock advantage for the Phenom II X2 B55 (base: 1.6 GHz vs 3 GHz). The Pentium 997 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Phenom II X2 B55 uses Callisto (2009−2010) (45 nm). In PassMark, the Pentium 997 scores 1,215 against the Phenom II X2 B55's 1,222 — a 0.6% lead for the Phenom II X2 B55. L3 cache: 2 MB (total) on the Pentium 997 vs 6 MB (total) on the Phenom II X2 B55.

Feature	Pentium 997	Phenom II X2 B55
Cores / Threads	2 / 2	2 / 2
Boost Clock	1.6 GHz	3 GHz+87%
Base Clock	1.6 GHz	3 GHz+87%
L3 Cache	2 MB (total)	6 MB (total)+200%
L2 Cache	256K (per core)	512 kB (per core)+100%
Process	32 nm-29%	45 nm
Architecture	Sandy Bridge (2011−2013)	Callisto (2009−2010)
PassMark	1,215	1,222

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Memory & Platform

The Pentium 997 uses the BGA1023 socket (PCIe 2.0), while the Phenom II X2 B55 uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard.