Atom N455
VS
E-240

Atom N455 vs E-240

Intel

Atom N455

1 Cores2 Thrd512 WWMax: 1.67 GHz2010
VS
AMD

E-240

1 Cores1 Thrd512 WWMax: 1.5 GHz2011

Performance Spectrum - CPU

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.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money. The Atom N455 is positioned at rank 633 and the E-240 is on rank 1169, so the Atom N455 offers better cost-efficiency for playing games.

MSRP is the manufacturer's suggested retail price.
Avg price is the current average price collected from markets across the web.

Performance Per Dollar Atom N455

#187
Core Ultra 9 288V
MSRP: $600|Avg: $600
98%
#188
Core i7-10870H
MSRP: $417|Avg: N/A
98%
#621
Atom x5-Z8300
MSRP: $20|Avg: N/A
850%
#622
Atom Z3735G
MSRP: $17|Avg: N/A
838%
#623
Core i5-480M
MSRP: $81|Avg: $77
769%
#624
Core i5-460M
MSRP: $80|Avg: $129
766%
#625
Core i5-2540M
MSRP: $266|Avg: $10
759%
#627
Core i5-450M
MSRP: $32|Avg: $31
733%
#628
Core i3-380M
MSRP: $49|Avg: $25
703%
#629
Core i5-430M
MSRP: N/A|Avg: $33
701%
#630
Core 2 Duo T6600
MSRP: N/A|Avg: $4
683%
#633
Atom N455
MSRP: N/A|Avg: N/A
100%
#638
Celeron Dual-Core T1400
MSRP: $80|Avg: $10
99%
Based on actual market prices and performance synthetic scores.

Performance Per Dollar E-240

#1157
Atom x5-Z8300
MSRP: $20|Avg: N/A
4340%
#1158
Atom Z3735G
MSRP: $17|Avg: N/A
4277%
#1159
Core i5-480M
MSRP: $81|Avg: $77
3926%
#1160
Core i5-460M
MSRP: $80|Avg: $129
3908%
#1161
Core i5-2540M
MSRP: $266|Avg: $10
3872%
#1163
Core i5-450M
MSRP: $32|Avg: $31
3740%
#1164
Core i3-380M
MSRP: $49|Avg: $25
3586%
#1165
Core i5-430M
MSRP: N/A|Avg: $33
3580%
#1166
Core 2 Duo T6600
MSRP: N/A|Avg: $4
3484%
#1169
E-240
MSRP: N/A|Avg: N/A
100%
#1170
Celeron 1047UE
MSRP: $100|Avg: $100
100%
#1171
Core M-5Y70
MSRP: $281|Avg: $281
100%
#1172
Celeron U3400
MSRP: $86|Avg: $5
99%
#1173
Celeron T1600
MSRP: $107|Avg: $15
99%
#1174
Pro A12-8800B
MSRP: $400|Avg: $40
99%
#1176
Core i7-2637M
MSRP: $289|Avg: N/A
97%
#1177
Athlon PRO 3045B
MSRP: $426|Avg: $180
96%
#1178
Core 2 Duo SL9600
MSRP: $316|Avg: N/A
96%
#1179
Core 2 Duo T5600
MSRP: $241|Avg: N/A
96%
#1180
Pentium N3510
MSRP: $161|Avg: $161
96%
#1181
Core i7-7Y75
MSRP: $393|Avg: $285
95%
#1183
Core i7-4500U
MSRP: $398|Avg: N/A
93%
Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Leadership: The Atom N455 delivers superior performance across the board. It outperforms the E-240 in both compute-intensive tasks (2% faster) and gaming workloads.
InsightAtom N455E-240
Gaming
Superior gaming performance
Lower gaming performance
Workstation
Better multi-core power
Weaker in multi-core tasks
Price
Equivalent pricing
Equivalent pricing
Longevity
🛑 Legacy (Pinetrail (2009−2011) / 45 nm)
🛑 Legacy (Zacate (2011−2013) / 40 nm)

💎 Value Proposition

InsightAtom N455E-240
Cost Efficiency
Lower cost efficiency
Lower cost efficiency
Upfront Cost
Equivalent pricing
Equivalent pricing

Performance Check

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Technical Specifications

Side-by-side comparison of Atom N455 and E-240

Intel

Atom N455

The Atom N455 is manufactured by Intel. It was released in 1 June 2010 (15 years ago). It is based on the Pinetrail (2009−2011) architecture. It features 1 cores and 2 threads. Base frequency is 1.66 GHz, with boost up to 1.67 GHz. L3 cache: 0 kB. L2 cache: 512K (per core). Built on 45 nm process technology. Socket: FCBGA559. Thermal design power (TDP): 6.5 Watt. Memory support: DDR3. Passmark benchmark score: 345 points. Launch price was $64.

AMD

E-240

The E-240 is manufactured by AMD. It was released in 4 January 2011 (14 years ago). It is based on the Zacate (2011−2013) architecture. It features 1 cores and 1 threads. Max frequency: 1.5 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 40 nm process technology. Socket: FT1. Thermal design power (TDP): 512 kB. Memory support: DDR3 Single-channel. Passmark benchmark score: 338 points. Launch price was $69.

Processing Power

The Atom N455 packs 1 cores / 2 threads, matching the E-240's 1 cores. Boost clocks reach 1.67 GHz on the Atom N455 versus 1.5 GHz on the E-240 — a 10.7% clock advantage for the Atom N455. The Atom N455 uses the Pinetrail (2009−2011) architecture (45 nm), while the E-240 uses Zacate (2011−2013) (40 nm). In PassMark, the Atom N455 scores 345 against the E-240's 338 — a 2% lead for the Atom N455. Both processors carry 0 kB of L3 cache.

FeatureAtom N455E-240
Cores / Threads
1 / 2
1 / 1
Boost Clock
1.67 GHz+11%
1.5 GHz
Base Clock
1.66 GHz
L3 Cache
0 kB
0 kB
L2 Cache
512K (per core)
512 kB
Process
45 nm
40 nm-11%
Architecture
Pinetrail (2009−2011)
Zacate (2011−2013)
PassMark
345+2%
338
🧠

Memory & Platform

The Atom N455 uses the FCBGA559 socket (PCIe 2.0), while the E-240 uses FT1 (PCIe 2.0) — making them incompatible on the same motherboard.

FeatureAtom N455E-240
Socket
FCBGA559
FT1
PCIe Generation
PCIe 2.0
PCIe 2.0
Max RAM Speed
DDR3-667
Max RAM Capacity
2 GB
RAM Channels
1
ECC Support
PCIe Lanes
0
🔧

Advanced Features

The Atom N455 includes integrated graphics (Intel GMA 3150), while the E-240 requires a dedicated GPU.

FeatureAtom N455E-240
Integrated GPU
Yes
IGPU Model
Intel GMA 3150