Athlon II X4 605e vs Core i3-2120

Athlon II X4 605e vs Core i3-2120 Performance Spectrum

Athlon II X4 605e

4 / 4

1,964

0.0%

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Core i3-2120

2 / 4

1,979

+0.8%

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.

Athlon II X4 605e vs Core i3-2120 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.

Athlon II X4 605e vs Core i3-2120: Pros, Cons & Final Verdict

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

Athlon II X4 605e

2009

Why buy it

✅+6.2% higher Cinebench R23 multi-core.
✅Draws 45W instead of 65W, a 20W reduction.

Trade-offs

❌Lower Geekbench single-core performance for gaming (300 vs 534).
❌
3.6% HIGHER MSRP
$143 MSRPvs$138 MSRP
❌No integrated graphics, while Core i3-2120 can still boot and troubleshoot without a discrete GPU.

Core i3-2120

2011

Why buy it

✅+78% higher Geekbench single-core performance for gaming and desktop responsiveness.
✅Costs $5 less on MSRP ($138 MSRP vs $143 MSRP).
✅Integrated graphics onboard with Intel HD Graphics 2000, while Athlon II X4 605e needs a discrete GPU.

Trade-offs

❌Lower Cinebench R23 multi-core (1,073 vs 1,140).
❌44.4% higher power demand at 65W vs 45W.

Quick Answers

So, is Core i3-2120 better than Athlon II X4 605e?

It depends on what you want from the system. For gaming, Core i3-2120 is ahead with a 2.4% average FPS lead across 47 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Athlon II X4 605e pulls ahead with 6.2% better Cinebench R23 multi-core.

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

For streaming, content creation, and heavier multitasking, Athlon II X4 605e is the stronger fit. You are getting 6.2% better Cinebench R23 multi-core, backed by 4 cores and 4 threads.

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

Core i3-2120 is the better buy right now. Core i3-2120 comes in $5 cheaper on MSRP at $138 MSRP versus $143 MSRP, and it still gives you a 2.4% average FPS lead across 47 shared CPU game tests in our data. The compromise is that Athlon II X4 605e is still stronger for heavier multi-core work with 6.2% better Cinebench R23 multi-core. It is also 4.4% better value on MSRP (14.3 vs 13.7 PassMark/$), 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 i3-2120 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2011 vs 2009). That makes it the safer long-term bet.

Athlon II X4 605e vs Core i3-2120 Technical Specifications

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

Athlon II X4 605e

The Athlon II X4 605e is manufactured by AMD. It was released in 20 October 2009 (16 years ago). It is based on the Propus (2009−2011) architecture. It features 4 cores and 4 threads. Base frequency is 2.3 GHz, with boost up to 2.3 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 45 Watt. Memory support: DDR3. Passmark benchmark score: 1,964 points. Launch price was $102.

Core i3-2120

The Core i3-2120 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 3.3 GHz, with boost up to 3.3 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: 1,979 points. Launch price was $95.

⚡

Processing Power

The Athlon II X4 605e packs 4 cores / 4 threads, while the Core i3-2120 offers 2 cores / 4 threads — the Athlon II X4 605e has 2 more cores. Boost clocks reach 2.3 GHz on the Athlon II X4 605e versus 3.3 GHz on the Core i3-2120 — a 35.7% clock advantage for the Core i3-2120 (base: 2.3 GHz vs 3.3 GHz). The Athlon II X4 605e uses the Propus (2009−2011) architecture (45 nm), while the Core i3-2120 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Athlon II X4 605e scores 1,964 against the Core i3-2120's 1,979 — a 0.8% lead for the Core i3-2120. Cinebench R23 multi-core: 1,140 vs 1,073 (6.1% advantage for the Athlon II X4 605e). Geekbench 6 single-core — the metric most relevant to gaming — records 300 vs 534, a 56.1% lead for the Core i3-2120 that directly translates to higher frame rates. Multi-core Geekbench: 1,069 vs 1,140 (6.4% advantage for the Core i3-2120). L3 cache: 0 kB on the Athlon II X4 605e vs 3 MB (total) on the Core i3-2120.

Feature	Athlon II X4 605e	Core i3-2120
Cores / Threads	4 / 4+100%	2 / 4
Boost Clock	2.3 GHz	3.3 GHz+43%
Base Clock	2.3 GHz	3.3 GHz+43%
L3 Cache	0 kB	3 MB (total)
L2 Cache	512 kB (per core)+100%	256 kB (per core)
Process	45 nm	32 nm-29%
Architecture	Propus (2009−2011)	Sandy Bridge (2011−2013)
PassMark	1,964	1,979
Cinebench R23 Multi	1,140+6%	1,073
Geekbench 6 Single	300	534+78%
Geekbench 6 Multi	1,069	1,140+7%

🧠

Memory & Platform

The Athlon II X4 605e uses the AM3 socket (PCIe 2.0), while the Core i3-2120 uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard. Both support up to DDR3-1333 memory speed. Both support up to 32 GB of RAM. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: 760G,785G,790GX,880G,890GX (Athlon II X4 605e) and H61,H67,P67,Z68,Q65,Q67,B75,H77,Q75,Q77,Z75,Z77 (Core i3-2120).

Feature	Athlon II X4 605e	Core i3-2120
Socket	AM3	LGA1155
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	DDR3-1333	DDR3-1333
Max RAM Capacity	32 GB	32 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	16

🔧

Advanced Features

Virtualization support: AMD-V (Athlon II X4 605e) vs Yes (Core i3-2120). The Core i3-2120 includes integrated graphics (Intel HD Graphics 2000), while the Athlon II X4 605e requires a dedicated GPU. Primary use case: Athlon II X4 605e targets Desktop.

Feature	Athlon II X4 605e	Core i3-2120
Integrated GPU	No	Yes
IGPU Model	—	Intel HD Graphics 2000
Unlocked	No	—
AVX-512	No	No
Virtualization	AMD-V	Yes
Target Use	Desktop	—

💰

Value Analysis

At launch, the Athlon II X4 605e was priced at $143, while the Core i3-2120 came in at $138. On launch pricing ($143 vs $138), Core i3-2120 was $5 cheaper. In terms of value on MSRP (PassMark points per dollar), the Athlon II X4 605e delivers 13.7 pts/$ vs 14.3 pts/$ for the Core i3-2120 — making the Core i3-2120 the 4.3% better value option.

Feature	Athlon II X4 605e	Core i3-2120
MSRP	$143	$138-3%
Performance per Dollar	13.7	14.3+4%
Release Date	2009	2011

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