Core 2 Duo T8100 vs Core m5-6Y54

Intel

Core 2 Duo T8100

2 Cores2 Thrd3 WWMax: 2.1 GHz2008
Similar parts
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VS
Intel

Core m5-6Y54

2 Cores4 Thrd4.5 WWMax: 2.7 GHz2015
Similar parts
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Core 2 Duo T8100 vs Core m5-6Y54 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.

Core 2 Duo T8100 vs Core m5-6Y54 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 2 Duo T8100 vs Core m5-6Y54: Pros, Cons & Final Verdict

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

Core 2 Duo T8100

2008

Why buy it

  • Costs $72 less on MSRP ($209 MSRP vs $281 MSRP).
  • Delivers 36.0% more PassMark for each dollar spent, at 11.1 vs 8.2 PassMark/$ ($209 MSRP vs $281 MSRP).
  • Draws 3W instead of 5W, a 2W reduction.

Trade-offs

  • Lower Geekbench single-core performance for gaming (380 vs 875).
  • Lower Geekbench multi-core (700 vs 1,648).
  • Smaller total L3 cache (3 MB vs 4 MB).
  • No integrated graphics, while Core m5-6Y54 can still boot and troubleshoot without a discrete GPU.

Core m5-6Y54

2015

Why buy it

  • +130.3% higher Geekbench single-core performance for gaming and desktop responsiveness.
  • +33.3% larger total L3 cache (4 MB vs 3 MB).
  • 100+% more PCIe lanes (10 vs 0) for storage and expansion-heavy builds.
  • Integrated graphics onboard with HD Graphics 515, while Core 2 Duo T8100 needs a discrete GPU.

Trade-offs

  • Lower PassMark per dollar, at 8.2 vs 11.1 PassMark/$ ($281 MSRP vs $209 MSRP).
  • 50% higher power demand at 4.5W vs 3W.

Quick Answers

So, is Core m5-6Y54 better than Core 2 Duo T8100?
Yes. Core m5-6Y54 is the better all-around CPU here. It gives you a 0.3% average FPS lead across 50 shared CPU game tests in our data, 135.4% better Geekbench multi-core, 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 m5-6Y54 is the better pick. According to our tests, it delivers 0.3% 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 m5-6Y54 is the stronger fit. You are getting 135.4% better Geekbench multi-core, backed by 2 cores and 4 threads. It also has the larger cache pool with 33.3% larger total L3 cache (4 MB vs 3 MB).
Which one is the smarter buy today, not just the cheaper CPU?
Core m5-6Y54 is still the much better call for a fresh build. Core m5-6Y54 comes in 34.4% more expensive on MSRP at $281 MSRP versus $209 MSRP, and it still gives you a 0.3% average FPS lead across 50 shared CPU game tests in our data. Core 2 Duo T8100 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2008 platform. Even with 36.0% better value on paper (11.1 vs 8.2 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on PGA478.
Which one is more future-proof for 2026 and beyond?
Core m5-6Y54 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2015 vs 2008), 33.3% larger total L3 cache (4 MB vs 3 MB), and more multi-core headroom with 2 cores / 4 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core 2 Duo T8100 vs Core m5-6Y54 Technical Specifications

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

Intel

Core 2 Duo T8100

The Core 2 Duo T8100 is manufactured by Intel. It was released in 10 January 2008 (17 years ago). It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Base frequency is 2.1 GHz, with boost up to 2.1 GHz. L3 cache: 3 MB L2 Cache. L2 cache: 3 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 35 Watt. Passmark benchmark score: 2,320 points. Launch price was $209.

Intel

Core m5-6Y54

The Core m5-6Y54 is manufactured by Intel. It was released in 1 September 2015 (10 years ago). It is based on the Skylake-Y (2015) architecture. It features 2 cores and 4 threads. Base frequency is 1.1 GHz, with boost up to 2.7 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: FCBGA1515. Thermal design power (TDP): 4.5 Watt. Memory support: DDR3. Passmark benchmark score: 2,294 points. Launch price was $281.

Processing Power

The Core 2 Duo T8100 packs 2 cores / 2 threads, matching the Core m5-6Y54's 2 cores. Boost clocks reach 2.1 GHz on the Core 2 Duo T8100 versus 2.7 GHz on the Core m5-6Y54 — a 25% clock advantage for the Core m5-6Y54 (base: 2.1 GHz vs 1.1 GHz). The Core 2 Duo T8100 uses the Penryn (2008−2011) architecture (45 nm), while the Core m5-6Y54 uses Skylake-Y (2015) (14 nm). In PassMark, the Core 2 Duo T8100 scores 2,320 against the Core m5-6Y54's 2,294 — a 1.1% lead for the Core 2 Duo T8100. Geekbench 6 single-core — the metric most relevant to gaming — records 380 vs 875, a 78.9% lead for the Core m5-6Y54 that directly translates to higher frame rates. Multi-core Geekbench: 700 vs 1,648 (80.7% advantage for the Core m5-6Y54). L3 cache: 3 MB L2 Cache on the Core 2 Duo T8100 vs 4 MB (total) on the Core m5-6Y54.

FeatureCore 2 Duo T8100Core m5-6Y54
Cores / Threads
2 / 2
2 / 4
Boost Clock
2.1 GHz
2.7 GHz+29%
Base Clock
2.1 GHz+91%
1.1 GHz
L3 Cache
3 MB L2 Cache
4 MB (total)+33%
L2 Cache
3 MB+1100%
256 kB (per core)
Process
45 nm
14 nm-69%
Architecture
Penryn (2008−2011)
Skylake-Y (2015)
PassMark
2,320+1%
2,294
Geekbench 6 Single
380
875+130%
Geekbench 6 Multi
700
1,648+135%
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Memory & Platform

The Core 2 Duo T8100 uses the PGA478 socket (PCIe 1.1), while the Core m5-6Y54 uses FCBGA1515 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-667 on the Core 2 Duo T8100 versus LPDDR3-1866 on the Core m5-6Y54 — the Core m5-6Y54 supports 179.8% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core m5-6Y54 supports up to 16 GB of RAM compared to 4 GB 300% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Core 2 Duo T8100) vs 10 (Core m5-6Y54) — the Core m5-6Y54 offers 10 more lanes for additional GPUs or NVMe drives. Chipset compatibility: GM965,PM965 (Core 2 Duo T8100) and Skylake-Y (Core m5-6Y54).

FeatureCore 2 Duo T8100Core m5-6Y54
Socket
PGA478
FCBGA1515
PCIe Generation
PCIe 1.1
PCIe 3.0+173%
Max RAM Speed
DDR2-667
LPDDR3-1866+180%
Max RAM Capacity
4 GB
16 GB+300%
RAM Channels
2
2
ECC Support
No
No
PCIe Lanes
0
10
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Advanced Features

Neither processor supports overclocking. Virtualization support: VT-x (Core 2 Duo T8100) vs VT-x, VT-d (Core m5-6Y54). The Core m5-6Y54 includes integrated graphics (HD Graphics 515), while the Core 2 Duo T8100 requires a dedicated GPU. Primary use case: Core 2 Duo T8100 targets Legacy Laptop, Core m5-6Y54 targets Enthusiast. Direct competitor: Core 2 Duo T8100 rivals Core 2 Duo T7250; Core m5-6Y54 rivals Pentium Gold 4415Y.

FeatureCore 2 Duo T8100Core m5-6Y54
Integrated GPU
No
Yes
IGPU Model
HD Graphics 515
Unlocked
No
No
AVX-512
No
No
Virtualization
VT-x
VT-x, VT-d
Target Use
Legacy Laptop
Enthusiast
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Value Analysis

At launch, the Core 2 Duo T8100 was priced at $209, while the Core m5-6Y54 came in at $281. On launch pricing ($209 vs $281), Core 2 Duo T8100 was $72 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core 2 Duo T8100 delivers 11.1 pts/$ vs 8.2 pts/$ for the Core m5-6Y54 — making the Core 2 Duo T8100 the 30.5% better value option.

FeatureCore 2 Duo T8100Core m5-6Y54
MSRP
$209-26%
$281
Performance per Dollar
11.1+35%
8.2
Release Date
2008
2015

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