Gaming GPUs Graphics Reviews

Palit GTX 1650 KalmX 4GB Review – When and how well does passive cooling really work? | Laboratory test

Clock rates with and without housing fans

I had already slightly teased it during the course of tension, now we just come to the facts. In principle, an extremely slow-turning fan (here in the test Be Quiet Silent Wings 3 with set 500 rpm) is enough to ensure quite low temperatures with a touch of a breeze. Then you land at about 66 °C for the GPU and a real boost clock of at least 1800 MHz after heating. This is hardly worse than what the air-cooled maps in the tests have offered so far. Only the overclocking is logically fails.

If the system is operated without any ventilation, the temperature explodes to 89 °C, with the thermal limit replacing the voltage as a limiting factor from 83 °C. But then the boost is actually no longer existing and you land more or less on the base clock of 1485 MHz. We have already seen what this is worth in the benchmarks, because it is still significantly faster than what a GeForce GTX 1050 Ti with similar power consumption and better cooling can do!

And now the whole thing again in sober numbers in table form:

  With housing fan
Without any fans
GPU Temperatures
66 °C 89 °C
GPU clock 1800-1815 MHz 1485-1500 MHz
Air temperature in the housing n/a n/a

Board analysis

The infrared images below show the game loop of the card with and without fans in the chassis. When using the housing fan, you can see a fairly uniform temperature distribution over the entire board, which can be a good thing. Only the area around the two voltage converters is significantly warmer, which is still acceptable.

 

When there is silence, the fireflies come and it is also hot on the board. Now the GPU is the driving wedge (he) and makes the sweatbox perfect. This time I also prepared the heatpipes with special tape to illustrate the delta to the GPU. One is located approx. 16 degrees above the GPU diode, which speaks for the heatsink solution and the performance of the heatpipes.

Noise

Passive card and operating noise? There are no fans, of course, but the two phases have to contend with the load-bearing with high FPS values (game menu) under load and of course also reveal this displeasure to the environment. Not very pretentious, but if the rest doesn't secrete anything in sound, you hear it.

Palit GeForce GTX 1650 KalmX, 4GB GDDR5, HDMI, 2x DP (NE5165001BG1-1170H)

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About the author

Igor Wallossek

Editor-in-chief and name-giver of igor'sLAB as the content successor of Tom's Hardware Germany, whose license was returned in June 2019 in order to better meet the qualitative demands of web content and challenges of new media such as YouTube with its own channel.

Computer nerd since 1983, audio freak since 1979 and pretty much open to anything with a plug or battery for over 50 years.

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