Jetway AMD G-T40E Fanless Barebones Nettop

Complete|Mobile Systems
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Thermal Performance

System Measurements
System State
Temperatures
CPU
SYS
GPU
Ext*
Off
N/A
Sleep (S3)
N/A
Idle
60°C
55°C
60°C
46°C
H.264 Playback
71°C
60°C
70°C
52°C
CPU Load
77°C
63°C
77°C
57°C
CPU + GPU Load
88°C
68°C
88°C
64°C
Ambient temperature: 21°C.
*External temperature measured using an IR thermometer pointed at the hottest portion of the chassis.

The Jetway's single side heatsink was enough to keep the system running without throttling even on heavy load, but just barely. Even at idle the system was fairly warm with internal temperatures around 60°C. On full CPU load the exterior became uncomfortably hot to touch. The CPU and GPU peaked at just under 90°C when loaded simultaneously.

Power Consumption

The unit's power consumption is unimpressive, failing to beat out systems based on Intel's Atom N2600/N2800. It should noted that the cooling provided by the barebones case is rather poor; higher component temperatures can lead to lower power efficiency. The Logic Supply N2800 system is also passively cooled but features a much bigger heatsink and the Jetway NF9C-2600 motherboard was tested in an open testing environment. In any event, it's not going to make a dent in anyone's electric bill, using about 20W or less for most usage cases.

Video Playback

The barebone's HD video playback performance was similar to that of the E-450 powered Sapphire Edge HD3, at least when it came to H.264 MOV/MKV playback. It struggled with HD Flash playback, playing a 720p YouTube trailer smoothly but with high CPU utilization. Moving up to a 1080p trailer, the APU couldn't keep up, with the video pausing intermittently. It would seem that the HD 6250's Flash GPU hardware acceleration hasn't been fully optimized, explaining the high CPU usage as the system attempted to render the clips using software decoding.

During high definition video playback, the average system power consumption was about 20W, similar to that of the Sapphire Edge HD3.



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