AMD Phenom II X4 820 - HDX820WFK4FGI

Specifications

Model	Cores / Threads	Freq.	Turbo freq.	L2 cache	L3 cache	TDP	Features
AMD Phenom II X4 family, Socket AM2+ / Socket AM3
AMD Phenom II X4 955 (95W, rev. C3, BE)	4 / 4	3.2 GHz		2 MB	6 MB	125 Watt	Unlock
AMD Phenom II X4 960T	4 / 4	3 GHz	3.4 GHz	2 MB	6 MB	95 Watt	TBT, Unlock
AMD Phenom II X4 B99	4 / 4	3.3 GHz		2 MB	6 MB	95 Watt
AMD Phenom II X4 965 (125W, non-BE)	4 / 4	3.4 GHz		2 MB	6 MB	125 Watt
AMD Phenom II X4 965 (140W, BE)	4 / 4	3.4 GHz		2 MB	6 MB	140 Watt	Unlock
AMD Phenom II X4 965 (125W, BE)	4 / 4	3.4 GHz		2 MB	6 MB	125 Watt	Unlock
AMD Phenom II X4 970 (rev. C3)	4 / 4	3.5 GHz		2 MB	6 MB	125 Watt	Unlock
AMD Phenom II X4 970 (rev. E0)	4 / 4	3.5 GHz		2 MB	6 MB	125 Watt	Unlock
AMD Phenom II X4 975	4 / 4	3.6 GHz		2 MB	6 MB	125 Watt	Unlock
AMD Phenom II X4 980	4 / 4	3.7 GHz		2 MB	6 MB	125 Watt	Unlock
AMD Phenom II X4 family, K10 micro-architecture, Other sockets
AMD Phenom II X4 920	4 / 4	2.8 GHz		2 MB	6 MB	140.8 Watt
AMD Phenom II X4 940	4 / 4	3 GHz		2 MB	6 MB	139.6 Watt	Unlock
Other families, K10 micro-architecture, Socket AM2+ / Socket AM3
AMD Athlon II 170u	1 / 1	2 GHz		1 MB		20 Watt
AMD Sempron 150	1 / 1	2.9 GHz		1 MB		45 Watt
AMD Athlon X2 5200+ (0.045 micron)	2 / 2	2.3 GHz		1 MB		65 Watt
AMD Sempron X2 190	2 / 2	2.5 GHz		1 MB		45 Watt
AMD Athlon II X2 B30	2 / 2	3.6 GHz		2 MB		65 Watt
AMD Phenom II X2 570 BE	2 / 2	3.5 GHz		1 MB	6 MB	80 Watt	Unlock
AMD Phenom II X3 B77	3 / 3	3.2 GHz		1.5 MB	6 MB	95 Watt
AMD Athlon II X3 460	3 / 3	3.4 GHz		1.5 MB		95 Watt

Pictures (2)

2011-12-02 01:00:04 Posted by: gshv
CPU-Z screenshot
2011-12-02 01:00:51 Posted by: gshv
CPU-Z screenshot of Phenom II X4 820 with unlocked 6 MB L3 cache

Benchmarks

Compare results with tested CPUs from one of the following families: A6-Series A8-Series Athlon II X2 Athlon II X3 Athlon II X4 Core 2 Extreme Core 2 Quad Core i5 Core i5 Mobile Core i7 FX-Series Phenom II Quad-Core Mobile Phenom II X2 Phenom II X3 Phenom II X4 Phenom II X6 Phenom II XLT Phenom X4 Third Generation Opteron To compare benchmark results with all other microprocessors please
Tested processor
CPU ID:	0F42h
CPU vendor string:	AuthenticAMD
CPU name string:	AMD Phenom(tm) II X4 820 Processor
Integer performance Part number   Result AMD Phenom II X4 840T  ?  103.5% Intel Core 2 Quad Q8200  ?  101.6% AMD Phenom II X4 925 (rev. C2)  ?  100% AMD Athlon II X4 630 (rev. C3)  ?  100% AMD Athlon II X4 630 (rev. C2)  ?  100% AMD Phenom II X4 820  ?  100% AMD Phenom II X4 830  ?  99.9% AMD Phenom II X4 B93  ?  99.9% AMD Phenom II X4 925 (rev. C3)  ?  99.9% AMD A6-3670K  ?  99.8% AMD Phenom II X4 650T  ?  96.5%
Floating Point performance Part number   Result Intel Core i5-750  ?  102.8% AMD Phenom II X4 925 (rev. C2)  ?  100.1% AMD Phenom II X4 B93  ?  100.1% AMD Phenom II X4 830  ?  100% AMD Athlon II X4 630 (rev. C2)  ?  100% AMD Phenom II X4 820  ?  100% AMD Phenom II X4 925 (rev. C3)  ?  100% AMD Athlon II X4 630 (rev. C3)  ?  100% Intel Core i5-2405S  ?  99.5% Intel Core i5-2400S  ?  99.5% Intel Core i5-670  ?  99.2%
MMX / SSE / SSE2 performance Part number   Result AMD Phenom II X4 830  ?  100.6% AMD Phenom II X4 925 (rev. C3)  ?  100.4% AMD Phenom II X4 B93  ?  100.4% AMD Phenom II X4 650T  ?  100% AMD Phenom II X4 925 (rev. C2)  ?  100% AMD Phenom II X4 820  ?  100% Intel Core i5-560M (PGA988)  ?  99.5% Intel Core i5-480M (PGA988)  ?  99.5% AMD Athlon II X4 630 (rev. C2)  ?  99.4% AMD Athlon II X4 630 (rev. C3)  ?  99.4% AMD A6-3670K  ?  98.8%
Memory-intensive program performance Part number   Result AMD Phenom II X4 830  ?  102.6% AMD Phenom II X4 940  ?  102.4% AMD Phenom II X2 560 BE  ?  101.7% AMD Phenom II X4 650T  ?  101.6% AMD Phenom II X2 555 BE (rev. C3)  ?  100.9% AMD Phenom II X4 820  ?  100% AMD A8-3870K  ?  99.9% AMD Phenom II X3 720 (non-BE)  ?  99.7% AMD Phenom II X3 720 (BE)  ?  99.4% AMD A8-3850  ?  98.6% AMD Phenom II X2 550 BE (rev. C2)  ?  98.6%

CPU ID (2)

NOTE: CPU ID information below was taken from one CPU and may include features that are not present in all different steppings of the AMD Phenom II X4 820 CPU.

Cache:	L1 data	L1 instruction	L2	L3
Size:	4 x 64 KB	4 x 64 KB	4 x 512 KB	4 MB
Associativity:	2-way set associative	2-way set associative	16-way set associative	64-way set associative
Line size:	64 bytes	64 bytes	64 bytes	64 bytes
Lines per tag:	1	1	1	1

Instruction set extensions		Additional instructions
MMX		Advanced Bit manipulation
AMD extensions to MMX		CLFLUSH
3DNow!		CMOV
Extensions to 3DNow!		CMPXCHG16B
SSE		CMPXCHG8B
SSE2		FXSAVE/FXRSTORE
SSE3		MONITOR/MWAIT
SSE4A		POPCNT
		PREFETCH/PREFETCHW
		SYSCALL/SYSRET
		SYSENTER/SYSEXIT
Major features		Other features
On-chip Floating Point Unit		1 GB large page support
64-bit / Intel 64		100MHz multiplier control
NX bit/XD-bit		128-bit SSE instructions
Secure Virtual Machine (Virtualization)		36-bit page-size extensions
PowerNow! / Cool'n'Quiet		Advanced programmable interrupt controller
		Core multi-processing legacy mode
		Debugging extensions
		Extended APIC space
		Hardware P-state control
		Hardware thermal control
		Instruction based sampling
		LAHF/SAHF support in 64-bit mode
		LBR virtualization
		LOCK MOV CR0 means MOV CR8
		Machine check architecture
		Machine check exception
		Memory-type range registers
		Misaligned SSE mode
		Model-specific registers
		Nested page tables
		OS visible workaround
		Page attribute table
		Page global extension
		Page-size extensions (4MB pages)
		Physical address extensions
		RDTSCP
		SKINIT and STGI support
		SVM lock
		Software thermal control
		Support for NRIP save
		THERMTRIP
		TSC rate is ensured to be invariant across all states
		Temperature sensor
		Time stamp counter
		Virtual 8086-mode enhancements
		Watchdog timer support

Our CPUID database has 2 records for this microprocessor. See all submitted records.

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