LAST UPDATED ON SEPTEMBER 23, 2018
The main reason why you need to pay special attention in selecting a low power CPU is that processors with over 65W TDP tend to generate so much heat that the cooling fan noise is not any more comfortable for media center use.
When choosing a processor, it is advisable to check not only the performance but also its Thermal Design Power (TDP) and power consumption.
The TDP describes the maximum amount of power the cooling system in a computer is required to dissipate. You should choose a low-TDP processor with a max TDP (Thermal Design Power) of no more than 65 watts. The low-power CPU runs at reduced voltages and emits less heat which requires less cooling.
However, it is recommended to go with a “more than adequate” CPU for a HTPC, because a more powerful, 65W TDP CPU at 10% load will dissipate less heat than a less powerful, 45W TDP CPU at 80% load.
Value for money (Value for $) highlights the CPU value (performance / price) using the lowest price from Amazon.com.
Recommended Intel CPUs
Intel Kaby Lake and Coffee Lake processors are currently the latest and optimal choices when it comes to performance and power efficiency.
Tier | Recommendation | TDP | Value for $ | Reviews | Price | |
---|---|---|---|---|---|---|
|
Tier
Budget
|
Recommendation
|
TDP
54 W
|
Value
★★★★★
|
Reviews
|
Price
|
|
Tier
Value
|
Recommendation
|
TDP
65 W
|
Value
★★★★☆
|
Reviews
|
Price
|
|
Tier
Performance
|
Recommendation
|
TDP
65 W
|
Value for $
★★★☆☆
|
Reviews
|
Price
|
In case you are wondering, different numbers in Intel Core i3 and i5 often indicate what processor clock speeds they are using, which Intel HD graphics model and whether the voltage has been adjusted or not.
The letters at the end of Intel Core processor models mean whether it is possible to overclock the processor or whether the processor has already being underclocked for better power efficiency.
Recommended AMD CPUs
I have not yet update the AMD recommendations for 2018, so these are a bit older models.
Tier | Recommendation | TDP | Value for $ | Reviews | Price | |
---|---|---|---|---|---|---|
|
Tier
Value
|
Recommendation
|
TDP
65 W
|
Value for $
★★★★★
|
Reviews
|
Price
|
|
Tier
Performance
|
Recommendation
|
TDP
65 W
|
Value for $
★★★★☆
|
Reviews
|
Price
|
AMD has been leading Intel in the integrated GPUs while the CPU processing performance has been lagging behind Intel’s processing power.