Product comparison · 2 cpus

HP Z620 Xeon E5-2640 6 Core 2.50GHz 15MB cache 1333MHz 2nd CPU vs HP Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU

48specifications compared
13differ
35identical
0known for one product only

Key differences

The HP Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU has 0.8 GHz more processor base frequency than the HP Z620 Xeon E5-2640 6 Core 2.50GHz 15MB cache 1333MHz 2nd CPU (3.3 GHz vs 2.5 GHz). The HP Z620 Xeon E5-2640 6 Core 2.50GHz 15MB cache 1333MHz 2nd CPU has 2 more processor cores than the HP Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU (6 vs 4). The HP Z620 Xeon E5-2640 6 Core 2.50GHz 15MB cache 1333MHz 2nd CPU has 4 more processor threads than the HP Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU (12 vs 8). Processor model: E5-2640 on the HP Z620 Xeon E5-2640 6 Core 2.50GHz 15MB cache 1333MHz 2nd CPU, E5-2643 on the HP Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU. Memory clock speeds supported by processor: 800,1066,1333 MHz on the HP Z620 Xeon E5-2640 6 Core 2.50GHz 15MB cache 1333MHz 2nd CPU, 800,1066,1333,1600 MHz on the HP Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU.

Processor model
- Z620 Xeon E5-2640 6 Core 2.50GHz 15MB cache 1333MHz 2nd CPU:E5-2640
- Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:E5-2643
Processor base frequency
- Z620 Xeon E5-2640 6 Core 2.50GHz 15MB cache 1333MHz 2nd CPU:2.5 GHz
- Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:3.3 GHz
Processor cores
- Z620 Xeon E5-2640 6 Core 2.50GHz 15MB cache 1333MHz 2nd CPU:6
- Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:4
Processor threads
- Z620 Xeon E5-2640 6 Core 2.50GHz 15MB cache 1333MHz 2nd CPU:12
- Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:8
System bus rate
- Z620 Xeon E5-2640 6 Core 2.50GHz 15MB cache 1333MHz 2nd CPU:7.2 GT/s
- Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:8 GT/s
Processor boost frequency
- Z620 Xeon E5-2640 6 Core 2.50GHz 15MB cache 1333MHz 2nd CPU:3 GHz
- Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:3.5 GHz
Processor cache
- Z620 Xeon E5-2640 6 Core 2.50GHz 15MB cache 1333MHz 2nd CPU:15 MB
- Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:10 MB
Processor front side bus
- Z620 Xeon E5-2640 6 Core 2.50GHz 15MB cache 1333MHz 2nd CPU:1333 MHz
- Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:1600 MHz

Side by side

Differences highlightedShow differences only

Comparison of Z620 Xeon E5-2640 6 Core 2.50GHz 15MB cache 1333MHz 2nd CPU, Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU
48 specifications	A HP Z620 Xeon E5-2640 6 Core 2.50GHz 15MB cache 1333MHz 2nd CPU View product	B HP Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU View product
Processor11 differ
Processor modelDiffers	E5-2640	E5-2643
Processor base frequencyDiffers	2.5 GHz	3.3 GHz
Processor coresDiffers	6	4
Processor threadsDiffers	12	8
System bus rateDiffers	7.2 GT/s	8 GT/s
Processor boost frequencyDiffers	3 GHz	3.5 GHz
Processor cacheDiffers	15 MB	10 MB
Processor front side busDiffers	1333 MHz	1600 MHz
Thermal Design Power (TDP)Differs	95 W	130 W
CPU multiplier (bus/core ratio)Differs	30	35
Memory bandwidth supported by processor (max)Differs	42.6 GB/s	51.2 GB/s
Memory1 differ
Memory clock speeds supported by processorDiffers	800,1066,1333 MHz	800,1066,1333,1600 MHz
Other features1 differ
CompatibilityDiffers	HP Z620	HP Z820

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