Product comparison · 2 laptops

Acer Aspire 431-2639 Intel® Celeron® 1007U Laptop vs Acer Aspire 431-4621 Intel® Pentium® 987 Laptop

Key differences

Processor family
- Aspire 431-2639 Intel® Celeron® 1007U Laptop:Intel® Celeron®
- Aspire 431-4621 Intel® Pentium® 987 Laptop:Intel® Pentium®
Processor model
- Aspire 431-2639 Intel® Celeron® 1007U Laptop:1007U
- Aspire 431-4621 Intel® Pentium® 987 Laptop:987
Processor cache type
- Aspire 431-2639 Intel® Celeron® 1007U Laptop:Smart Cache
- Aspire 431-4621 Intel® Pentium® 987 Laptop:L2
Processor lithography
- Aspire 431-2639 Intel® Celeron® 1007U Laptop:22 nm
- Aspire 431-4621 Intel® Pentium® 987 Laptop:32 nm
Processor codename
- Aspire 431-2639 Intel® Celeron® 1007U Laptop:Ivy Bridge
- Aspire 431-4621 Intel® Pentium® 987 Laptop:Sandy Bridge
Stepping
- Aspire 431-2639 Intel® Celeron® 1007U Laptop:P0
- Aspire 431-4621 Intel® Pentium® 987 Laptop:Q0
Tjunction
- Aspire 431-2639 Intel® Celeron® 1007U Laptop:105 °C
- Aspire 431-4621 Intel® Pentium® 987 Laptop:100 °C
Graphics & IMC lithography
- Aspire 431-2639 Intel® Celeron® 1007U Laptop:22 nm
- Aspire 431-4621 Intel® Pentium® 987 Laptop:32 nm

Differences highlightedShow differences only

Comparison of 431-2639, 431-4621
149 specifications	A Acer Aspire 431-2639 Intel® Celeron® 1007U Laptop Model 431-2639 View product	B Acer Aspire 431-4621 Intel® Pentium® 987 Laptop Model 431-4621 View product
Processor8 differ
Processor familyDiffers	Intel® Celeron®	Intel® Pentium®
Processor modelDiffers	1007U	987
System bus rateKnown for one	5 GT/s	Unknown — not stated by the source
Processor cache typeDiffers	Smart Cache	L2
Processor lithographyDiffers	22 nm	32 nm
Processor seriesDiffers	Intel Celeron 1000 series for Mobile	Intel Pentium 900 Series for Mobile
Processor codenameDiffers	Ivy Bridge	Sandy Bridge
SteppingDiffers	P0	Q0
TjunctionDiffers	105 °C	100 °C
Processor special features8 differ
Graphics & IMC lithographyDiffers	22 nm	32 nm
Intel VT-x with Extended Page Tables (EPT)Differs	Yes	No
Intel Virtualization Technology (VT-x)Differs	Yes	No
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Processor ARK IDDiffers	72061	67194
Processor codeDiffers	SR109	SR0V4
Processor package sizeDiffers	31 x 24 mm	31.0 x 24.0 (BGA1023)
Supported instruction setsDiffers	SSE4.1, SSE4.2	SSE4.x
Conflict-Free processorDiffers	Yes	No
Poweridentical
DC-in jackKnown for one	Yes	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.