Phenom II X2 B53 vs Atom x5-Z8550

CPU

GPU

Phenom II X2 B53

2 Cores2 Thrd80 WWMax: 2.8 GHz2009

Atom x5-Z8550

4 Cores4 Thrd−WMax: 2.4 GHz2016

Performance Spectrum - CPU

Phenom II X2 B53

2 / 2

1,137

0.0%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Atom x5-Z8550

4 / 4

1,143

+0.5%

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 Phenom II X2 B53 is positioned at rank 1038 and the Atom x5-Z8550 is on rank 723, so the Atom x5-Z8550 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 Phenom II X2 B53

Ryzen 9 7950X

MSRP: $194|Avg: $20

41123%

Core i9-10900T

MSRP: $120|Avg: $5

38858%

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

28214%

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

8500%

Ryzen 9 9950X

MSRP: $649|Avg: $129

6733%

Ryzen 5 8400F

MSRP: $303|Avg: $55

5890%

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

3373%

Ryzen 5 2600X

MSRP: $229|Avg: $55

3329%

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

3031%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

3031%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

2997%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

2916%

#13

Core i3-9100E

MSRP: $202|Avg: $30

2876%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

2864%

#15

Core i3-8300T

MSRP: $138|Avg: $25

2838%

#1038

Phenom II X2 B53

MSRP: $150|Avg: $15

100%

#1039

Core 2 Quad Q9300

MSRP: $266|Avg: $27

100%

#1040

Athlon II X4 638

MSRP: $300|Avg: $280

99%

#1041

Core 2 Duo E7200

MSRP: $133|Avg: $133

99%

#1043

Phenom X3 8750

MSRP: $195|Avg: $20

98%

#1044

Pentium G4400TE

MSRP: $300|Avg: $250

96%

#1045

Celeron 2.60

MSRP: $53|Avg: $10

96%

#1046

Core i7-990X

MSRP: $999|Avg: $225

94%

#1047

Phenom X4 9750B

MSRP: $215|Avg: $34

93%

#1048

Core 2 Duo E8200

MSRP: $163|Avg: $20

93%

#1049

Core 2 Quad Q9450

MSRP: $316|Avg: $15

92%

#1050

Core 2 Duo E8600

MSRP: $200|Avg: $95

91%

#1051

Core 2 Duo E6320

MSRP: $163|Avg: $5

90%

#1052

Core i7-980X

MSRP: $999|Avg: $150

90%

#1053

Athlon 64 X2 3600+

MSRP: $150|Avg: $10

90%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Atom x5-Z8550

#711

Atom x5-Z8300

MSRP: $20|Avg: N/A

1027%

#712

Atom Z3735G

MSRP: $17|Avg: N/A

1012%

#713

Core i5-480M

MSRP: $81|Avg: $77

929%

#714

Core i5-460M

MSRP: $80|Avg: $129

924%

#715

Core i5-2540M

MSRP: $266|Avg: $10

916%

#717

Core i5-450M

MSRP: $32|Avg: $31

885%

#718

Core i3-380M

MSRP: $49|Avg: $25

848%

#719

Core i5-430M

MSRP: N/A|Avg: $33

847%

#720

Core 2 Duo T6600

MSRP: N/A|Avg: $4

824%

#723

Atom x5-Z8550

MSRP: N/A|Avg: N/A

100%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Generational Difference: This comparison involves processors from different technological eras. The Atom x5-Z8550 (2016) utilizes 14 nm technology and DDR3, providing a fundamental performance advantage.

Insight	Phenom II X2 B53	Atom x5-Z8550
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	⚠️ Higher cost ($15)	✅ More affordable ($0)
Longevity	🛑 Legacy (Callisto (2009−2010) / 45 nm)	🛑 Legacy (Cherry Trail (2015−2016) / 14 nm)

💎 Value Proposition

The Phenom II X2 B53 (2009) relies on 45 nm technology and DDR3, placing it in a different performance category relative to modern standards.

Insight	Phenom II X2 B53	Atom x5-Z8550
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	⚠️ Higher cost ($15)	✅ More affordable ($0)

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.

Phenom II X2 B53 Benchmark Check

Atom x5-Z8550 Benchmark Check

Technical Specifications

Side-by-side comparison of Phenom II X2 B53 and Atom x5-Z8550

Phenom II X2 B53

The Phenom II X2 B53 is manufactured by AMD. It was released in 2009-01-01. It is based on the Callisto (2009−2010) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 6 MB (total). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 80 Watt. Memory support: DDR3. Passmark benchmark score: 1,137 points. Launch price was $149.

Atom x5-Z8550

The Atom x5-Z8550 is manufactured by Intel. It was released in 8 February 2016 (9 years ago). It is based on the Cherry Trail (2015−2016) architecture. It features 4 cores and 4 threads. Base frequency is 1.44 GHz, with boost up to 2.4 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 14 nm process technology. Socket: UTFCBGA1380. Memory support: DDR3. Passmark benchmark score: 1,143 points. Launch price was $69.

⚡

Processing Power

The Phenom II X2 B53 packs 2 cores / 2 threads, while the Atom x5-Z8550 offers 4 cores / 4 threads — the Atom x5-Z8550 has 2 more cores. Boost clocks reach 2.8 GHz on the Phenom II X2 B53 versus 2.4 GHz on the Atom x5-Z8550 — a 15.4% clock advantage for the Phenom II X2 B53 (base: 2.8 GHz vs 1.44 GHz). The Phenom II X2 B53 uses the Callisto (2009−2010) architecture (45 nm), while the Atom x5-Z8550 uses Cherry Trail (2015−2016) (14 nm). In PassMark, the Phenom II X2 B53 scores 1,137 against the Atom x5-Z8550's 1,143 — a 0.5% lead for the Atom x5-Z8550. L3 cache: 6 MB (total) on the Phenom II X2 B53 vs 0 kB on the Atom x5-Z8550.

Feature	Phenom II X2 B53	Atom x5-Z8550
Cores / Threads	2 / 2	4 / 4+100%
Boost Clock	2.8 GHz+17%	2.4 GHz
Base Clock	2.8 GHz+94%	1.44 GHz
L3 Cache	6 MB (total)	0 kB
L2 Cache	512 kB (per core)	2 MB+300%
Process	45 nm	14 nm-69%
Architecture	Callisto (2009−2010)	Cherry Trail (2015−2016)
PassMark	1,137	1,143
Geekbench 6 Single	300	—
Geekbench 6 Multi	550	—

🧠

Memory & Platform

The Phenom II X2 B53 uses the AM3 socket (PCIe 2.0), while the Atom x5-Z8550 uses UTFCBGA1380 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR3-1333 memory speed. The Phenom II X2 B53 supports up to 16 GB of RAM compared to 8 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Phenom II X2 B53) vs 2 (Atom x5-Z8550) — the Atom x5-Z8550 offers 2 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AM3,AM2+ (Phenom II X2 B53) and Intel FC-UTBGA592 (Atom x5-Z8550).

Feature	Phenom II X2 B53	Atom x5-Z8550
Socket	AM3	UTFCBGA1380
PCIe Generation	PCIe 2.0	PCIe 3.0+50%
Max RAM Speed	DDR3-1333	LPDDR3-1600
Max RAM Capacity	16 GB+100%	8 GB
RAM Channels	2	2
ECC Support	✅	❌
PCIe Lanes	0	2

🔧

Advanced Features

Virtualization: Yes (Phenom II X2 B53) / not specified (Atom x5-Z8550). The Atom x5-Z8550 includes integrated graphics (Intel HD Graphics (Cherry Trail)), while the Phenom II X2 B53 requires a dedicated GPU.