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AMD Athlon X2 7850 vs Phenom X4 9550

Mini Review

AMD Athlon X2 7850 advantages

  • In single-threaded tasks, our estimates show that the CPU has 27% better performance.
  • The microprocessor is not "locked". The processor can be freely overclocked on most motherboards to achieve higher performance.

AMD Phenom X4 9550 advantages

  • The AMD Phenom X4 9550 packs more processing cores than the 7850. Large number of cores helps this processor to process multiple programs or heavily multi-threaded applications.

7850 vs 9550 estimated performance

The charts below illustrate performance of Athlon X2 7850 and Phenom X4 9550 microprocessors. Results for Athlon X2 7850 were determined based on a variety of benchmarks. Performance numbers for Phenom X4 9550 were estimated from benchmark results of other processors with identical core and microarchitecture. It is important to note that the estimate has greater error of margin than results obtained using real-world tests. Also, this is an averaged performance, and the difference in individual benchmarks may be worse or better than what you see in the charts below.
Single-threaded performance
2
1.6
1.2
0.8
0.4
0
 
 
1.27
 
1
 
 
Higher is better
 

  - AMD Athlon X2 7850       - AMD Phenom X4 9550

7850 vs 9550 specifications comparison

The graphs below compare the most important AMD 7850 and AMD Phenom X4 9550 features. These characteristics, together with an IPC (instructions per cycle) number, determine how well a CPU performs. Darker area on the "On-chip cache" graph is for the On-chip L2 cache. Lighter area is for the L3 cache cache. Although the L3 cache cache is usually larger than the On-chip L2 cache, it is always slower.

The number of cores / threads
5
4
3
2
1
0
 
 
2
 
4
 
 
Higher is better
Operating frequency
4
3.2
2.4
1.6
0.8
0
 
 
2.8GHz
 
2.2GHz
 
 
Higher is better
On-chip L2 + L3 cache
5
4
3
2
1
0
 
 
3MB
 
4MB
 
 
Higher is better
Thermal Design Power
110
88
66
44
22
0
 
 
95W
 
95W
 
 
Lower is better

  - AMD Athlon X2 7850       - AMD Phenom X4 9550

Detailed side by side comparison of Athlon X2 7850 vs 9550 specs can be found in the "Specifications" tab. Even more detailed comparison of internal features of both microprocessors you will find in the "CPUIDs" tab.


Pros and Cons summary

Athlon X2 7850 Phenom X4 9550
General recommendations:
Somewhat faster in single-threaded applications,
Can be easily overclocked
  General recommendations:
More cores improve multi-threading performance,
Can execute more threads at once

Drawbacks:

Doesn't have as many CPU cores,
Handles fewer threads
 

Drawbacks:

Not as fast in single-threaded programs

Similar processors

Athlon X2 7850 Phenom X4 9550
 

Similar processors use the same socket and architecture as AMD Athlon X2 7850 and 9550.

Jump to:
  • CPUIDs
  • Comments

Compare CPUs

Compare AMD Athlon X2 7850 with...

Other Phenom X4 CPU:

Any CPU:


Compare AMD Phenom X4 9550 with...

Other Athlon X2 CPU:

Any CPU:


Note: To see differences with any CPU, type in any combination of the following into the "Any CPU" field: manufacturer name, full or partial family name, model number, part number, core name, socket name, operating frequency, bus speed (must have FSB suffix), and the last level cache. Here are some valid searches:

  i5-3570K
  Intel Celeron 2 GHz
  K10
  Pentium 4 800FSB
  AMD 3.3GHz 8MB

Specifications

Please visit AMD Athlon X2 7850 and AMD Phenom X4 9550 pages for more detailed specifications of both microprocessors.

 AMD Athlon X2 7850AMD Phenom X4 9550
Market segmentDesktop
ManufacturerAMD
FamilyAthlon X2Phenom X4
Basic details
Model number78509550
CPU part numberAD785ZWCJ2BGHHD9550WCJ4BGH
Box part numberAD785ZWCGHBOXHD9550WCGHBOX
Introduction dateApril 28, 2009March 27, 2008
 
CPU features
Core nameKumaAgena
MicroarchitectureK10
Technology (micron)0.065
Data width (bits)64
SocketSocket AM2 / Socket AM2+
Frequency (MHz)28002200
Bus speed (MHz) 1800 (HT/QPI)
Clock Multiplier1411
L1 cache128 KB (code) / 128 KB (data)256 KB (code) / 256 KB (data)
L2 cache (KB)10242048
L3 cache (KB)2048
Max temperature (°C)7355 - 70
TDP (Watt)95
Core voltage (V)1.2 - 1.251.15 - 1.25
Cores24
Threads24
Multiprocessing1
 
Instruction set extensions
3DNow!+
AMD64 / EM64T 64-bit technology+
MMX+
SSE+
SSE2+
SSE3+
 
Supported technologies
PowerNow! / Enhanced SpeedStep+
Unlocked multiplier+-
Virtualization+
Virus Protection / Execute Disable bit+
 
Integrated Graphics
GPU TypeNone
Notes:

Rows with different specifications or features are highlighted.

For detailed specifications of "AMD Athlon X2 7850" or "AMD Phenom X4 9550" parts please click on the links in the table header.

CPUIDs

The table below compares two random CPUID records for AMD Athlon X2 7850 and AMD Phenom X4 9550 microprocessors, that were submitted to our CPUID database.

  CPUID 1 CPUID 2
ManufacturerAMD
CPU FamilyAthlon X2Phenom X4
Model / Processor Number78509550
Frequency2800 MHz2200 MHz
CWID version0.30.4
Part numberAD785ZWCJ2BGHHD9550WCJ4BGH
S-Spec / Stepping CodeJAAAB AA 0912FPTWJAAHB AA 0820GPMW
Comment Agena
 
General information
VendorAuthenticAMD
Processor name (BIOS)AMD Athlon(tm) 7850 Dual-Core ProcessorAMD Phenom(tm) 9550 Quad-Core Processor
Cores24
Logical processors24
Processor typeOriginal OEM Processor
Core steppingDR-B3
CPUID signature100F23
Family16 (010h)
Model 2 (02h)
Stepping 3 (03h)
 
Cache
L1 data: Associativity2-way set associative
L1 data: Line size64 bytes
L1 data: Lines per tag1
L1 data: Size2 x 64 KB4 x 64 KB
L1 instruction: Associativity2-way set associative
L1 instruction: Line size64 bytes
L1 instruction: Lines per tag1
L1 instruction: Size2 x 64 KB4 x 64 KB
L2: Associativity16-way set associative
L2: Line size64 bytes
L2: Lines per tag1
L2: Size2 x 512 KB4 x 512 KB
L3: Associativity32-way set associative
L3: Line size64 bytes
L3: Lines per tag1
L3: Size2 MB
 
Instruction set extensions
3DNow!+
AMD extensions to MMX+
Extensions to 3DNow!+
MMX+
SSE+
SSE2+
SSE3+
SSE4A+
 
Additional instructions
Advanced Bit manipulation+
CLFLUSH+
CMOV+
CMPXCHG16B+
CMPXCHG8B+
FXSAVE/FXRSTORE+
MONITOR/MWAIT+
POPCNT+
PREFETCH/PREFETCHW+
RDTSCP+
SYSCALL/SYSRET+
SYSENTER/SYSEXIT+
 
Major features
64-bit / Intel 64+
NX bit/XD-bit+
On-chip Floating Point Unit+
PowerNow! / Cool'n'Quiet+
Secure Virtual Machine (Virtualization)+
 
Other features
1 GB large page support+
100MHz multiplier control+
128-bit SSE instructions+
36-bit page-size extensions+
Advanced programmable interrupt controller+
Core multi-processing legacy mode+
Debugging extensions+
Extended APIC space+
FXSAVE/FXRSTOR optimizations+
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+
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+
+ - feature is supported
- - feature is not supported
Features, not supported by all processors in the table, are not displayed

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