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AMD Athlon II X4 620 2.6 GHz Socket AM3 Quad-Core Processor Review

AMD Athlon II X4 620 2.6 GHz Socket AM3 Quad-Core Processor Review - PCSTATS
Abstract: The AMD Athlon II X4 620 is a 2.6 GHz socket AM3 chip destined for mainstream PCs.
 80% Rating:   
Filed under: CPU / Processors Published:  Author: 
External Mfg. Website: AMD Sep 23 2009   Julian Apong  
Home > Reviews > CPU / Processors > AMD Athlon II X4 620

Core-by-Core System Power Draw

Will stripping out the L3 cache have a big impact on power draw?

While the AMD "Deneb" die that's used in AMD's Phenom II processors is rated at 140W TDP, the "Propus" die requires significantly less power because it's a smaller chip overall, and doesn't have a power-sucking L3 cache to boot. The Athlon II X4 620 is rated for a 95W TDP.

To determine how much power multi-core processors draw, PCSTATS will be measuring total power consumption what the CPU is in idle and several CPU-stressed states. To get an accurate measurement, it's necessary to disable AMD and Intel's power saving and CPU clock speed throttling technologies like Cool 'n' Quiet, EIST (speedstep) and C1E power states. To simulate single-core load a program called Stress Prime (SP2004) is used.

PCSTATS set about stressing each processor from one to all cores. This programs gives better insight into different power draw scenarios. The SP2004 program is multi-threaded, allowing individual CPU cores to be stressed by each instance of the program.

Total system power consumption was read with the Extech Power Analyzer Datalogger (model 380803). The Extech Power Analyzer is located between the main 120AC supply and the PC's power supply.

Total System Idle Power Draw
Processor Total System Power Draw
Intel Pentium 4 540 150 Watts
Intel Pentium D 840 165 Watts
Intel Pentium D 940 168 Watts
Intel Core 2 Duo E6600 117 Watts
Intel Core 2 Duo E6750 123 Watts
Intel Core 2 Duo E8400 131 Watts
Intel Core i7 920 144 Watts
AMD Sempron 3600+ 120 Watts
AMD Athlon64 4000+ 163 Watts
AMD Athlon64 FX-60 127 Watts
AMD Athlon64 X2 4800+ 143 Watts
AMD Athlon64 X2 5000+ 156 Watts
AMD Athlon64 FX-62 168 Watts
AMD Athlon II X2 250 128 Watts
AMD Athlon II X4 620 130 Watts
AMD Phenom II X3 720 155 Watts
AMD Phenom II X4 955 148 Watts
AMD Phenom II X4 965 154 Watts

At idle, there's already some substantial reductions in power draw from AMD's top-of-the line processors. The Athlon II X4 620 PC system draws the least amount of power out of the quad-core CPU based PCs in this chart.

Total System Stressed Power Draw - All Cores/Threads
Processor Total System Power Draw (All Cores)
Intel Pentium 4 540 223 Watts
Intel Pentium D 840 (2 Core ) 240 Watts
Intel Pentium D 940 (2 Core Load) 253 Watts
Intel Core 2 Duo E6600 (2 Core Load) 156 Watts
Intel Core 2 Duo E6750 (2 Core Load) 163 Watts
Intel Core 2 Duo E8400 (2 Core Load) 158 Watts
Intel Core i7 920 (8 Thread Load) 213 Watts
AMD Sempron 3600+ 148 Watts
AMD Athlon64 4000+ 172 Watts
AMD Athlon64 FX-60 (2 Core Load) 196 Watts
AMD Athlon64 X2 4800+ (2 Core Load) 173 Watts
AMD Athlon64 X2 5000+ (2 Core Load) 207 Watts
AMD Athlon64 FX-62 (2 Core Load) 235 Watts
AMD Athlon II X2 250 (2 Core Load) 163 Watts
AMD Athlon II X4 620 (1 Core Load) 148 Watts
AMD Athlon II X4 620 (2 Core Load) 167 Watts
AMD Athlon II X4 620 (3 Core Load) 187 Watts
AMD Athlon II X4 620 (4 Core Load) 195 Watts
AMD Phenom II X3 720 (3 Core Load) 213 Watts
AMD Phenom II X4 955 (4 Core Load) 236 Watts
AMD Phenom II X4 965 (4 Core Load) 264 Watts

Once all four cores are fired up, the AMD Athlon II X4 620 processor remains the most power efficient quad-core, with just 195W total system draw under a full load. A large part of this is likely due to the absence of the L3 cache, but a lower clockspeed will also have an impact on overall power consumption.

Overclocking is up next, just how fast can PCSTATS push the Athlon II X4 beyond 2.6GHz? I think 1GHz is doable, how about 2GHz?

< Previous Page © 2017 PCSTATS.com Next Page >

 

Contents of Article: AMD Athlon II X4 620
 Pg 1.  AMD Athlon II X4 620 2.6 GHz Socket AM3 Quad-Core Processor Review
 Pg 2.  — Core-by-Core System Power Draw
 Pg 3.  Overclocking 1GHz Faster & Test System Specs
 Pg 4.  32-bit CPU System Benchmarks: Sysmark 2007
 Pg 5.  32-bit CPU System Benchmarks: PCMark Vantage
 Pg 6.  32-Bit CPU Synthetic Benchmarks: Sandra 2009 Processor / Memory
 Pg 7.  32-Bit CPU Synthetic Benchmarks: Sandra 2009 Memory
 Pg 8.  32-Bit CPU Calculation Benchmarks: Super Pi
 Pg 9.  32-Bit CPU Calculation Benchmarks: wPrime2.0
 Pg 10.  32-Bit CPU Calculation Benchmarks: ScienceMark2.3, WinRAR
 Pg 11.  32-Bit CPU Rendering Benchmarks: Cinebench R10, Bibble 5
 Pg 12.  32-Bit CPU Rendering Benchmarks: POV-Ray, 3.7, SPECviewPerf 10
 Pg 13.  32-Bit CPU Synthetic Gaming Benchmarks: 3DMark Vantage, 3DMark 06
 Pg 14.  32-Bit CPU Gaming Benchmarks: Crysis
 Pg 15.  32-Bit CPU Gaming Benchmarks: FEAR
 Pg 16.  Bargain Basement or Real Steal?

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