Core i3-2100T vs Phenom II X3 705e

Core i3-2100T vs Phenom II X3 705e Performance Spectrum

Core i3-2100T

2 / 4

1,531

+0.8%

1,519

0.0%

Ryzen Threadripper PRO 5945WX

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.

Core i3-2100T vs Phenom II X3 705e 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 i3-2100T vs Phenom II X3 705e: Pros, Cons & Final Verdict

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

Core i3-2100T

2011

Why buy it

✅+0.8% higher PassMark.
✅Draws 35W instead of 65W, a 30W reduction.

Trade-offs

❌Smaller total L3 cache (3 MB vs 6 MB).
❌Launch MSRP is still $127 MSRP, while Phenom II X3 705e mostly shows up through inconsistent older-market listings.

Phenom II X3 705e

2009

Why buy it

✅+100% larger total L3 cache (6 MB vs 3 MB).

Trade-offs

❌Lower PassMark (1,519 vs 1,531).
❌85.7% higher power demand at 65W vs 35W.

Quick Answers

So, is Core i3-2100T better than Phenom II X3 705e?

Yes. Core i3-2100T 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, 0.8% 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, Core i3-2100T is the stronger fit. You are getting 0.8% better PassMark, backed by 2 cores and 4 threads.

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

Core i3-2100T is the better buy right now. Core i3-2100T comes in at an unclear MSRP at $127 MSRP versus unclear MSRP, and it still gives you a 0.8% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (12.1 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Core i3-2100T makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2011 vs 2009) and more multi-core headroom with 2 cores / 4 threads instead of 3/3. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i3-2100T vs Phenom II X3 705e Technical Specifications

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

Core i3-2100T

The Core i3-2100T is manufactured by Intel. It was released in 20 February 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 4 threads. Base frequency is 2.5 GHz, with boost up to 2.5 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: 1,531 points. Launch price was $180.

Phenom II X3 705e

The Phenom II X3 705e is manufactured by AMD. It was released in 2 June 2009 (16 years ago). It is based on the Heka (2009−2010) architecture. It features 3 cores and 3 threads. Base frequency is 2.5 GHz, with boost up to 2.5 GHz. L3 cache: 6 MB (total). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,519 points. Launch price was $152.

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Processing Power

The Core i3-2100T packs 2 cores / 4 threads, while the Phenom II X3 705e offers 3 cores / 3 threads — the Phenom II X3 705e has 1 more core. Boost clocks reach 2.5 GHz on the Core i3-2100T versus 2.5 GHz on the Phenom II X3 705e — identical boost frequencies (base: 2.5 GHz vs 2.5 GHz). The Core i3-2100T uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Phenom II X3 705e uses Heka (2009−2010) (45 nm). In PassMark, the Core i3-2100T scores 1,531 against the Phenom II X3 705e's 1,519 — a 0.8% lead for the Core i3-2100T. L3 cache: 3 MB (total) on the Core i3-2100T vs 6 MB (total) on the Phenom II X3 705e.

Feature	Core i3-2100T	Phenom II X3 705e
Cores / Threads	2 / 4	3 / 3+50%
Boost Clock	2.5 GHz	2.5 GHz
Base Clock	2.5 GHz	2.5 GHz
L3 Cache	3 MB (total)	6 MB (total)+100%
L2 Cache	256 kB (per core)	512 kB (per core)+100%
Process	32 nm-29%	45 nm
Architecture	Sandy Bridge (2011−2013)	Heka (2009−2010)
PassMark	1,531	1,519

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Memory & Platform

The Core i3-2100T uses the LGA1155 socket (PCIe 2.0), while the Phenom II X3 705e uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard.