A9-9420 vs Core i3-2100T

AMD

A9-9420

2 Cores2 Thrd15 WWMax: 3.6 GHz2016
Similar parts
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VS
Intel

Core i3-2100T

2 Cores4 Thrd35 WWMax: 2.5 GHz2011
Similar parts
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A9-9420 vs Core i3-2100T Performance Spectrum

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.

A9-9420 vs Core i3-2100T 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.

A9-9420 vs Core i3-2100T: Pros, Cons & Final Verdict

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

A9-9420

2016

Why buy it

  • Draws 15W instead of 35W, a 20W reduction.
  • 100+% more PCIe lanes (8 vs 0) for storage and expansion-heavy builds.
  • Integrated graphics onboard with Radeon R5, while Core i3-2100T needs a discrete GPU.

Trade-offs

  • Lower PassMark per dollar, at 10.3 vs 12.1 PassMark/$ ($150 MSRP vs $127 MSRP).

Core i3-2100T

2011

Why buy it

  • Costs $23 less on MSRP ($127 MSRP vs $150 MSRP).
  • Delivers 17.6% more PassMark for each dollar spent, at 12.1 vs 10.3 PassMark/$ ($127 MSRP vs $150 MSRP).

Trade-offs

  • Lower PassMark (1,531 vs 1,538).
  • 133.3% higher power demand at 35W vs 15W.
  • No integrated graphics, while A9-9420 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is A9-9420 better than Core i3-2100T?
Yes. A9-9420 is the better all-around CPU here. It gives you a 1.9% average FPS lead across 50 shared CPU game tests in our data, 0.5% 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, A9-9420 is the better pick. According to our tests, it delivers 1.9% 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, A9-9420 is the stronger fit. You are getting 0.5% better PassMark, backed by 2 cores and 2 threads.
Which one is the smarter buy today, not just the cheaper CPU?
A9-9420 is still the much better call for a fresh build. A9-9420 comes in 18.1% more expensive on MSRP at $150 MSRP versus $127 MSRP, and it still gives you a 1.9% average FPS lead across 50 shared CPU game tests in our data. Core i3-2100T only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2011 platform. Even with 17.6% better value on paper (12.1 vs 10.3 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA1155.
Which one is more future-proof for 2026 and beyond?
A9-9420 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2016 vs 2011) and more multi-core headroom with 2 cores / 2 threads instead of 2/4. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

A9-9420 vs Core i3-2100T Technical Specifications

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

AMD

A9-9420

The A9-9420 is manufactured by AMD. It was released in 31 May 2016 (9 years ago). It is based on the Stoney Ridge (2016−2019) architecture. It features 2 cores and 2 threads. Base frequency is 3 GHz, with boost up to 3.6 GHz. L3 cache: 0 kB. L2 cache: 1 MB (total). Built on 28 nm process technology. Socket: FT4. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 1,538 points. Launch price was $69.

Intel

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.

Processing Power

The A9-9420 packs 2 cores / 2 threads, matching the Core i3-2100T's 2 cores. Boost clocks reach 3.6 GHz on the A9-9420 versus 2.5 GHz on the Core i3-2100T — a 36.1% clock advantage for the A9-9420 (base: 3 GHz vs 2.5 GHz). The A9-9420 uses the Stoney Ridge (2016−2019) architecture (28 nm), while the Core i3-2100T uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the A9-9420 scores 1,538 against the Core i3-2100T's 1,531 — a 0.5% lead for the A9-9420. L3 cache: 0 kB on the A9-9420 vs 3 MB (total) on the Core i3-2100T.

FeatureA9-9420Core i3-2100T
Cores / Threads
2 / 2
2 / 4
Boost Clock
3.6 GHz+44%
2.5 GHz
Base Clock
3 GHz+20%
2.5 GHz
L3 Cache
0 kB
3 MB (total)
L2 Cache
1 MB (total)+300%
256 kB (per core)
Process
28 nm-13%
32 nm
Architecture
Stoney Ridge (2016−2019)
Sandy Bridge (2011−2013)
PassMark
1,538
1,531
Geekbench 6 Single
497
Geekbench 6 Multi
950
🧠

Memory & Platform

The A9-9420 uses the FT4 socket (PCIe 3.0), while the Core i3-2100T uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.

FeatureA9-9420Core i3-2100T
Socket
FT4
LGA1155
PCIe Generation
PCIe 3.0+50%
PCIe 2.0
Max RAM Speed
DDR4-2133
Max RAM Capacity
8 GB
RAM Channels
1
ECC Support
No
PCIe Lanes
8
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Advanced Features

Virtualization: AMD-V (A9-9420) / not specified (Core i3-2100T). The A9-9420 includes integrated graphics (Radeon R5), while the Core i3-2100T requires a dedicated GPU. Primary use case: A9-9420 targets Budget Laptop. Direct competitor: A9-9420 rivals Pentium N4200.

FeatureA9-9420Core i3-2100T
Integrated GPU
Yes
IGPU Model
Radeon R5
Unlocked
No
AVX-512
No
Virtualization
AMD-V
Target Use
Budget Laptop
💰

Value Analysis

At launch, the A9-9420 was priced at $150, while the Core i3-2100T came in at $127. On launch pricing ($150 vs $127), Core i3-2100T was $23 cheaper. In terms of value on MSRP (PassMark points per dollar), the A9-9420 delivers 10.3 pts/$ vs 12.1 pts/$ for the Core i3-2100T — making the Core i3-2100T the 16.2% better value option.

FeatureA9-9420Core i3-2100T
MSRP
$150
$127-15%
Performance per Dollar
10.3
12.1+17%
Release Date
2016
2011

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