AMD Phenom II X4 975 Black Edition and Phenom II X4 840 Review Print E-mail

Last year PCWizKid reviewed the Phenom II X4 970 Black Edition CPU form AMD which builds upon the success of the 965. Today AMD officially releases the Phenom II X4 975 Black Edition desktop CPU which makes it AMD's fasted quad core desktop processor.  With a price tag of only $195 USD (MSRP) it is clocked at 3.6GHz.  Since it is an unlocked Black Edition processor we look forward to great overclocking potential.  The only difference from the 970 BE is 100Mhz increase in 975 BE.

Along with the release of the Phenom II X4 975 BE, AMD has also released the Phenom II X4 840 which is a more economical value edition quad core CPU.

PCWizKid will start off in this review with the Phenom II X4 975 BE and next we will review the Phenom X4 840.

Specifications

Model Number:
Phenom II X4 840 (HDX840WFK42GM)
Phenom II X4 975 (HDZ975FBK4DGM)
Clock Frequency:
3.2GHz
3.6GHz
Max TDP:
95 Watts
125 Watts
Cache Size:
L1 Cache 64K (each for Instruction + Data)
L2 Cache: 512KB per core (2MB Total)
L1 Cache 64K (each for Instruction + Data)
L2 Cache: 512KB per core (2MB Total)
L3 Cache: 6MB Shared L3
Process Technology:
45-nanometer SOI (silicon-on-insulator) technology
45-nanometer SOI (silicon-on-insulator) technology
HyperTransport Technology Links:
One 16-bit/16-bit link @ up to 4.0GHz full duplex (2.0GHz x2)
One 16-bit/16-bit link @ up to 4.0GHz full duplex (2.0GHz x2)
Memory:
Integrated 128-bit wide memory controller with speeds: Up to 2.0GHz with Dual Dynamic Power Management
Integrated 128-bit wide memory controller with speeds: Up to 2.0GHz with Dual Dynamic Power Management
Types of Memory:
support unregistered DIMMs up to PC2-8500 (DDR2-1066MHz) -AND- PC3-10600 (DDR3-1333MHz)
support unregistered DIMMs up to PC2-8500 (DDR2-1066MHz) -AND- PC3-10600 (DDR3-1333MHz)
Die Size:
169mm2
248mm2
Packaging:
Socket AM3 - 938-pin organic micro Pin Grid Array (micro-PGA) (Backwards compatable with AM2+ 940-pin)
Socket AM3 - 938-pin organic micro Pin Grid Array (micro-PGA) (Backwards compatable with AM2+ 940-pin)

 

PCWizKid's Test system

- Gigabyte MA790FXT-UD5P Motherboard
- AMD Radeon HD5850 1GB Graphics Card
- OCZ 4GB DDR3 Memory
- WD Caviar Blue SATA II 500GB HDD
- Tuniq Ripper 1000 Watt Power Supply
- Cooler Master Scout Case
- Noctua NH-D14 CPU cooler
- Windows 7 Ultimate 64bit

Phenom II X4 975 Video Review

Phenom II X4 840 Video Review

Conclusion

As expected and seen in PCWizKid's benchmark results the Phenom II X4 975 BE has a small inscrease in performance from its predesessor the 970 BE, however it is atractively priced and well suited for enthusiasts doing hard core gaming and willing to take advantage of its overclocking potential and headroom.  What was nice to see was the amount over overclocking, a full 700Mhz gain that was achieved while keeping the temperatures low.  As mentioned in the video review if you are looking for a substantial increase in performance for gaming this is more than enough. The AMD Phenom II X4 840 offers a budget entry quad core chip that retails for around $100 USD and offers plenty of performance for workstations and everyday computing.

Click here for the latest pricing on the AMD Phenom II X4 970 Black Edition CPU

 

CPU Name Cores Clock L2/L3 Cache HT Bus Socket TDP Price
AMD Phenom II X6 1100T BE 6 3.3GHz 3+6MB 4000MHz AM3 125W $280
AMD Phenom II X6 1090T BE 6 3.2GHz 3+6MB 4000MHz AM3 125W $249
AMD Phenom II X6 1075T 6 3.0GHz 3+6MB 4000MHz AM3 125W $200
AMD Phenom II X6 1055T 6 2.8GHz 3+6MB 4000MHz AM3 125W $180
AMD Phenom II X4 975 BE 4 3.6GHz 2+6MB 4000MHz AM3 125W $195
AMD Phenom II X4 970 BE 4 3.5GHz 2+6MB 4000MHz AM3 125W $185
AMD Phenom II X4 965 BE 4 3.4GHz 2+6MB 4000MHz AM3 140W $159
AMD Phenom II X4 955 BE 4 3.2GHz 2+6MB 4000MHz AM3 125W $145
AMD Phenom II X4 910e 4 2.6GHz 2+6MB 4000MHz AM3 65W $184
AMD Phenom II X4 840 4 3.2GHz 2MB 4000MHz AM3 95W $102
AMD Phenom II X2 565 2 3.4GHz 1+6MB 4000MHz AM3 80W $116
AMD Phenom II X2 560 2 3.3GHz 1+6MB 4000MHz AM3 80W $100
AMD Phenom II X2 555 2 3.2GHz 1+6MB 4000MHz AM3 80W $89
 

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