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AMD Phenom II X4 820 CPU

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AMD Phenom II X4 820 chipset compatibility

A list of compatible chipsets was compiled from CPU support lists, published on our website.

AMD 480X CrossFireNVIDIA GeForce 6150
AMD 690GNVIDIA GeForce 8100
AMD 740GNVIDIA GeForce 8200
AMD 760GNVIDIA GeForce 8300
AMD 770NVIDIA nForce 430
AMD 780GNVIDIA nForce 430a
AMD 780VNVIDIA nForce 520
AMD 785GNVIDIA nForce 520 LE
AMD 790FXNVIDIA nForce 560 SLI MCP
AMD 790GXNVIDIA nForce 570 SLI MCP
AMD 790XNVIDIA nForce 590 SLI MCP
AMD 870NVIDIA nForce 630a
AMD 880GNVIDIA nForce 720D
AMD 890FXNVIDIA nForce 740a SLI
AMD 890GXNVIDIA nForce 750a SLI
AMD 970NVIDIA nForce 780a SLI
AMD 990FXNVIDIA nForce3 250
AMD 990X 

AMD Phenom II X4 820 motherboard support

There are 923 motherboards, compatible with this processor. Complete list of these motherboards is available on the AMD Phenom II X4 820 motherboards page.

AMD Phenom II X4 820 specifications

The microprocessor specs below are published with the permission from CPU-World.com. Please see CPU-World website for more detailed specifications.

General specs

Microarchitecture:K10
Core Name:Deneb
Manufacturing Process:0.045 micron
Socket Type:Socket AM2+ / Socket AM3
The Number of Cores:4
The Number of Threads:4
Multiprocessing:Not supported
Frequency:2.8 GHz
Bus speed:2 GHz
L1 Cache:256 KB (code)
256 KB (data)
L2 Cache:2 MB
L3 Cache:4 MB
Thermal Design Power:95 Watt
Supported memory:DDR2-1066 / DDR3-1333
 

Instructions and Technologies

Execute Disable Bit?Yes
64-bit Support?Yes
Hyper-Threading technology?No
Virtualization?Yes
Enhanced SpeedStep?Yes
Instruction Set Extensions:MMX
SSE
SSE2
SSE3

Tray 820 microprocessors have HDX820WFK4FGI part number. Please check AMD Phenom II X4 page for details on other processors from the family.


CPUs, similar to AMD Phenom II X4 820

The AMD 820 is based on Deneb core, and it requires Socket AM2+ / Socket AM3. There were also 31 Deneb CPUs, that work in the same socket. Below you will find brief characteristics of these chips, along with stepping information.

SpecificationsSteppingsUpgrade
Chance
Model / PartCoresThreadsFrequencyL2
Cache
L3
Cache
TDPC2C3
Phenom II X4 805442.5 GHz2MB4MB95W+  97%
Phenom II X4 810442.6 GHz2MB4MB95W+  99%
Phenom II X4 820442.8 GHz2MB4MB95W+  N/A
Phenom II X4 830442.8 GHz2MB6MB95W + 5%
Phenom II X4 900e442.4 GHz2MB6MB65W+  98%
Phenom II X4 905e442.5 GHz2MB6MB65W+  98%
Phenom II X4 905e442.5 GHz2MB6MB65W + 37%
Phenom II X4 910442.6 GHz2MB6MB95W+  97%
Phenom II X4 910e442.6 GHz2MB6MB65W + 91%
Phenom II X4 925442.8 GHz2MB6MB95W+  98%
Phenom II X4 925442.8 GHz2MB6MB95W + 94%
Phenom II X4 945443 GHz2MB6MB95W+  95%
Phenom II X4 945443 GHz2MB6MB95W + 87%
Phenom II X4 945443 GHz2MB6MB125W+  73%
Phenom II X4 955443.2 GHz2MB6MB95W + 74%
Phenom II X4 955443.2 GHz2MB6MB125W+  70%
Phenom II X4 955443.2 GHz2MB6MB125W + 74%
Phenom II X4 955443.2 GHz2MB6MB125W+  72%
Phenom II X4 955443.2 GHz2MB6MB125W + 73%
Phenom II X4 960443.3 GHz2MB6MB95W + 24%
Phenom II X4 965443.4 GHz2MB6MB125W + 35%
Phenom II X4 965443.4 GHz2MB6MB125W + 71%
Phenom II X4 965443.4 GHz2MB6MB140W+  50%
Phenom II X4 970443.5 GHz2MB6MB125W + 50%
Phenom II X4 975443.6 GHz2MB6MB125W + 41%
Phenom II X4 980443.7 GHz2MB6MB125W + 33%
Phenom II X4 B93442.8 GHz2MB6MB95W+  0%
Phenom II X4 B93442.8 GHz2MB6MB95W + 0%
Phenom II X4 B95443 GHz2MB6MB95W+  0%
Phenom II X4 B95443 GHz2MB6MB95W + 0%
Phenom II X4 B97443.2 GHz2MB6MB95W + 0%
Phenom II X4 B99443.3 GHz2MB6MB95W + 1%

"Upgrade Chance" is a probability of a successful processor upgrade/downgrade from the Phenom II X4 820 (original CPU) to a specific model. This number is calculated as a percentage of all motherboards, compatible with both original and upgrade CPUs, compared to the number of motherboards, that support the original AMD Phenom II X4 820. The number "100%" means that all motherboards, that work with the original model, also work with the upgrade CPU. The number "0%" means that none of the boards, that support the original CPU, will support the upgrade processor. The manufacturers do not always test or publish results for obscure and unreleased models, and in some cases for OEM only processors, as a result they tend to have much lower scores than more common desktop/mobile counterparts.

AMD Phenom II X4 820 performance

The chart below shows aggregate multi-threaded performance of the processor compared to other Socket AM2+ / Socket AM3 processors with the same type of architecture. The performance value for many microprocessors was determined from more than 10 different synthetic and real-world tests. For each benchmarked application, we calculated performance ratio between current CPU and the Phenom II X4 820, and then averaged the results. Overall performance of CPUs, marked with (1), was estimated using their specifications, and benchmarks of similar AMD Socket AM2+ / Socket AM3 processors with Deneb core.

Model / PartRelative performance Note
Phenom II X4 980
125.8% 
Phenom II X4 975
123.8% 
Phenom II X4 970
121.2% 
Phenom II X4 965
117.5%(1)
Phenom II X4 965
117.5% 
Phenom II X4 965
117.5% 
Phenom II X4 B99
114.9%(1)
Phenom II X4 955
112.9% 
Phenom II X4 955
112%(1)
Phenom II X4 955
112%(1)
Phenom II X4 955
111.9% 
Phenom II X4 955
111.8% 
Phenom II X4 B97
111.5% 
Phenom II X4 B95
106.6% 
Phenom II X4 B95
106.6%(1)
Phenom II X4 945
106%(1)
Phenom II X4 945
106% 
Phenom II X4 945
106% 
Phenom II X4 830
100.8% 
Phenom II X4 925
100.7% 
Phenom II X4 B93
100.6% 
Phenom II X4 B93
100.4%(1)
Phenom II X4 820
100% 
Phenom II X4 925
100% 
Phenom II X4 910e
94.3% 
Phenom II X4 910
93.95% 
Phenom II X4 810
93.11% 
Phenom II X4 805
90.93% 
Phenom II X4 905e
90.86% 
Phenom II X4 905e
90.86%(1)
Phenom II X4 900e
87.2%(1)