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TEST METHODOLOGY
Common CPU Test Configuration:
Common IGP Test Configuration:
AMD AM3:
AMD FM1:
AMD FM2:
- AMD
A10-5800K processor - 3.8 GHz, 32nm, 100W, integrated Radeon
HD 7660D graphics
- AMD A10-5700
processor - 3.4 GHz, 32nm, 65W, integrated Radeon HD 7660D graphics
- AMD
A8-5600K processor - 3.6 GHz, 32nm, 100W, integrated Radeon
HD 7560D graphics
- ASUS F2A85-M Pro motherboard
- A85 chipset
Intel LGA1155:
Discrete GPUs Compared: (using our 2012 GPU test system)
Measurement and Analysis Tools
Timed Benchmark Test Details
- NOD32: In-depth virus scan of a folder containing 32 files of varying
size with many RAR and ZIP archives.
- WinRAR: Archive creation with a folder containing 68 files of varying
size (less than 50MB).
- iTunes: Conversion of an MP3 file to AAC.
- TMPGEnc: Encoding a XVID AVI file with VC-1.
- HandBrake: Encoding a XVID AVI file with H.264.
- Photoshop: Image manipulation using a variety of filters, a derivation
of Driver Heaven's Photoshop
Benchmark V3 (test image resized to 4500x3499).
3D Performance Benchmarks
Video Test Suite
1080p | 24fps | ~22 mbps |
H.264/MKV: A custom 1080p H.264 encoded clip inside an Matroska container.
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1080p | 24fps | ~2.3 mbps |
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Testing Procedures
Our main test procedure is a series of both CPU (timed tests of real-world applications) and GPU-centric (gaming tests and synthetics) benchmarks. System power consumption is measured during the CPU tests (an average of the first 10~15 seconds) and in various states including idle, H.264 and Flash playback and full CPU and GPU load using Prime95/CPUBurn and FurMark.
Certain services and features like Superfetch and System Restore are disabled
to prevent them from affecting our results. Aero glass is left enabled if supported.
We also make note if energy saving features like Cool'n'Quiet and SpeedStep
do not function properly.
The following power efficiency figures were obtained for the
Seasonic SS-400ET used in our test system:
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Seasonic SS-400ET Test Results
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|
DC Output (W)
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21.2
|
41.6
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60.2
|
81.9
|
104.7
|
124.1
|
145.2
|
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AC Input (W)
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32.0
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58.0
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78.0
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102.0
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128.0
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150.0
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175.0
|
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Efficiency
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66.3%
|
71.7%
|
77.1%
|
80.3%
|
81.8%
|
82.8%
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83.0%
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This data is enough to give us a very good estimate of DC demand in our
test system. We extrapolate the DC power output from the measured AC power
input based on this data. We won't go through the math; it's easy enough
to figure out for yourself if you really want to.
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