Core i3-2100T vs Phenom X4 9750B

Core i3-2100T vs Phenom X4 9750B Performance Spectrum

Core i3-2100T

2 / 4

1,531

+0.7%

1,520

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 X4 9750B 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 X4 9750B: 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

✅+50% larger total L3 cache (3 MB vs 2 MB).
✅Costs $88 less on MSRP ($127 MSRP vs $215 MSRP).
✅Delivers 70.5% more PassMark for each dollar spent, at 12.1 vs 7.1 PassMark/$ ($127 MSRP vs $215 MSRP).
✅Draws 35W instead of 95W, a 60W reduction.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Phenom X4 9750B

2008

Why buy it

✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (1,520 vs 1,531).
❌Smaller total L3 cache (2 MB vs 3 MB).
❌Lower PassMark per dollar, at 7.1 vs 12.1 PassMark/$ ($215 MSRP vs $127 MSRP).
❌171.4% higher power demand at 95W vs 35W.

Quick Answers

So, is Core i3-2100T better than Phenom X4 9750B?

Yes. Core i3-2100T is the better all-around CPU here. It gives you a 0.5% average FPS lead across 50 shared CPU game tests in our data, 0.7% 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, Core i3-2100T is the better pick. According to our tests, it delivers 0.5% 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, Core i3-2100T is the stronger fit. You are getting 0.7% better PassMark, backed by 2 cores and 4 threads. It also has the larger cache pool with 50% larger total L3 cache (3 MB vs 2 MB).

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 $88 cheaper on MSRP at $127 MSRP versus $215 MSRP, and it still gives you a 0.5% average FPS lead across 50 shared CPU game tests in our data. It is also 70.5% better value on MSRP (12.1 vs 7.1 PassMark/$), 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 2008), 50% larger total L3 cache (3 MB vs 2 MB), and more multi-core headroom with 2 cores / 4 threads instead of 4/4. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i3-2100T vs Phenom X4 9750B 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 X4 9750B

The Phenom X4 9750B is manufactured by AMD. It was released in 2009-01-01. It is based on the Agena (2007−2008) architecture. It features 4 cores and 4 threads. Max frequency: 2.4 GHz. L3 cache: 2 MB (total). L2 cache: 512 kB (per core). Built on 65 nm process technology. Socket: AM2+. Thermal design power (TDP): 95 Watt. Passmark benchmark score: 1,520 points. Launch price was $149.

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Processing Power

The Core i3-2100T packs 2 cores / 4 threads, while the Phenom X4 9750B offers 4 cores / 4 threads — the Phenom X4 9750B has 2 more cores. Boost clocks reach 2.5 GHz on the Core i3-2100T versus 2.4 GHz on the Phenom X4 9750B — a 4.1% clock advantage for the Core i3-2100T. The Core i3-2100T uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Phenom X4 9750B uses Agena (2007−2008) (65 nm). In PassMark, the Core i3-2100T scores 1,531 against the Phenom X4 9750B's 1,520 — a 0.7% lead for the Core i3-2100T. L3 cache: 3 MB (total) on the Core i3-2100T vs 2 MB (total) on the Phenom X4 9750B.

Feature	Core i3-2100T	Phenom X4 9750B
Cores / Threads	2 / 4	4 / 4+100%
Boost Clock	2.5 GHz+4%	2.4 GHz
Base Clock	2.5 GHz	—
L3 Cache	3 MB (total)+50%	2 MB (total)
L2 Cache	256 kB (per core)	512 kB (per core)+100%
Process	32 nm-51%	65 nm
Architecture	Sandy Bridge (2011−2013)	Agena (2007−2008)
PassMark	1,531	1,520
Geekbench 6 Single	—	300
Geekbench 6 Multi	—	1,000

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Memory & Platform

The Core i3-2100T uses the LGA1155 socket (PCIe 2.0), while the Phenom X4 9750B uses AM2+ (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Core i3-2100T	Phenom X4 9750B
Socket	LGA1155	AM2+
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	—	DDR2-1066
Max RAM Capacity	—	8 GB
RAM Channels	—	2
ECC Support	—	No
PCIe Lanes	—	16

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Advanced Features

Virtualization: not specified (Core i3-2100T) / AMD-V (Phenom X4 9750B). Primary use case: Phenom X4 9750B targets Legacy Desktop.

Feature	Core i3-2100T	Phenom X4 9750B
Integrated GPU	—	No
IGPU Model	—	None
Unlocked	—	No
AVX-512	—	No
Virtualization	—	AMD-V
Target Use	—	Legacy Desktop

💰

Value Analysis

At launch, the Core i3-2100T was priced at $127, while the Phenom X4 9750B came in at $215. On launch pricing ($127 vs $215), Core i3-2100T was $88 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i3-2100T delivers 12.1 pts/$ vs 7.1 pts/$ for the Phenom X4 9750B — making the Core i3-2100T the 52.1% better value option.

Feature	Core i3-2100T	Phenom X4 9750B
MSRP	$127-41%	$215
Performance per Dollar	12.1+70%	7.1
Release Date	2011	2008

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