Product comparison · 2 cpus

HP Z620 Xeon E5-2670 8 Core 2.60GHz 20MB cache 1600MHz 2nd CPU vs HP Z820 Xeon E5-2603 4 Core 1.80GHz 10MB cache 1066MHz 2nd CPU

47specifications compared
16differ
31identical
2known for one product only

Key differences

The HP Z620 Xeon E5-2670 8 Core 2.60GHz 20MB cache 1600MHz 2nd CPU has 0.8 GHz more processor base frequency than the HP Z820 Xeon E5-2603 4 Core 1.80GHz 10MB cache 1066MHz 2nd CPU (2.6 GHz vs 1.8 GHz). The HP Z620 Xeon E5-2670 8 Core 2.60GHz 20MB cache 1600MHz 2nd CPU has 4 more processor cores than the HP Z820 Xeon E5-2603 4 Core 1.80GHz 10MB cache 1066MHz 2nd CPU (8 vs 4). The HP Z620 Xeon E5-2670 8 Core 2.60GHz 20MB cache 1600MHz 2nd CPU has 12 more processor threads than the HP Z820 Xeon E5-2603 4 Core 1.80GHz 10MB cache 1066MHz 2nd CPU (16 vs 4). Only the HP Z620 Xeon E5-2670 8 Core 2.60GHz 20MB cache 1600MHz 2nd CPU has Intel® Hyper Threading Technology (Intel® HT Technology). Only the HP Z620 Xeon E5-2670 8 Core 2.60GHz 20MB cache 1600MHz 2nd CPU has Intel® Turbo Boost Technology.

Processor model
- Z620 Xeon E5-2670 8 Core 2.60GHz 20MB cache 1600MHz 2nd CPU:E5-2670
- Z820 Xeon E5-2603 4 Core 1.80GHz 10MB cache 1066MHz 2nd CPU:E5-2603
Processor base frequency
- Z620 Xeon E5-2670 8 Core 2.60GHz 20MB cache 1600MHz 2nd CPU:2.6 GHz
- Z820 Xeon E5-2603 4 Core 1.80GHz 10MB cache 1066MHz 2nd CPU:1.8 GHz
Processor cores
- Z620 Xeon E5-2670 8 Core 2.60GHz 20MB cache 1600MHz 2nd CPU:8
- Z820 Xeon E5-2603 4 Core 1.80GHz 10MB cache 1066MHz 2nd CPU:4
Processor threads
- Z620 Xeon E5-2670 8 Core 2.60GHz 20MB cache 1600MHz 2nd CPU:16
- Z820 Xeon E5-2603 4 Core 1.80GHz 10MB cache 1066MHz 2nd CPU:4
System bus rate
- Z620 Xeon E5-2670 8 Core 2.60GHz 20MB cache 1600MHz 2nd CPU:8 GT/s
- Z820 Xeon E5-2603 4 Core 1.80GHz 10MB cache 1066MHz 2nd CPU:6.4 GT/s
Processor cache
- Z620 Xeon E5-2670 8 Core 2.60GHz 20MB cache 1600MHz 2nd CPU:20 MB
- Z820 Xeon E5-2603 4 Core 1.80GHz 10MB cache 1066MHz 2nd CPU:10 MB
Processor cache type
- Z620 Xeon E5-2670 8 Core 2.60GHz 20MB cache 1600MHz 2nd CPU:L3
- Z820 Xeon E5-2603 4 Core 1.80GHz 10MB cache 1066MHz 2nd CPU:L2
Processor front side bus
- Z620 Xeon E5-2670 8 Core 2.60GHz 20MB cache 1600MHz 2nd CPU:1600 MHz
- Z820 Xeon E5-2603 4 Core 1.80GHz 10MB cache 1066MHz 2nd CPU:1066 MHz

Side by side

Differences highlightedShow differences only

Comparison of Z620 Xeon E5-2670 8 Core 2.60GHz 20MB cache 1600MHz 2nd CPU, Z820 Xeon E5-2603 4 Core 1.80GHz 10MB cache 1066MHz 2nd CPU
49 specifications	A HP Z620 Xeon E5-2670 8 Core 2.60GHz 20MB cache 1600MHz 2nd CPU View product	B HP Z820 Xeon E5-2603 4 Core 1.80GHz 10MB cache 1066MHz 2nd CPU View product
Processor11 differ
Processor modelDiffers	E5-2670	E5-2603
Processor base frequencyDiffers	2.6 GHz	1.8 GHz
Processor coresDiffers	8	4
Processor threadsDiffers	16	4
System bus rateDiffers	8 GT/s	6.4 GT/s
Processor boost frequencyKnown for one	3.3 GHz	Unknown — not stated by the source
Processor cacheDiffers	20 MB	10 MB
Processor cache typeDiffers	L3	L2
Processor front side busDiffers	1600 MHz	1066 MHz
Thermal Design Power (TDP)Differs	115 W	80 W
CPU multiplier (bus/core ratio)Differs	33	18
Memory bandwidth supported by processor (max)Differs	51.2 GB/s	34.1 GB/s
Memory1 differ
Memory clock speeds supported by processorDiffers	800,1066,1333,1600 MHz	800,1066 MHz
Featuresidentical
Maximum number of PCI Express lanesKnown for one	Unknown — not stated by the source	40
Processor special features2 differ
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
Intel® Turbo Boost TechnologyDiffers	Yes	No
Operational conditions1 differ
TcaseDiffers	81.8 °C	70 °C
Other features1 differ
CompatibilityDiffers	HP Z620	HP Z820

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.

More cpu comparisons

All cpu comparisons