OK, I got'em both and here are some observations I have made.
Test System:
Morgan 1.2GHz@1358MHz 2.02v
Abit KG7-Raid (AMD 761)
Generic mid-tower case: Four 80mm fans: one front intake, one side intake directly over heatsink, one power supply exhaust, one rear exhaust
Antec 400-watt
256MB PC2700 Samsung original
Radeon 9000 @ 300/250
CD-Rom, CD-Burner and floppy
Windows 98SE
Wpcrset
Not the fastest system, but it definately takes decent cooling with the small size of the Morgan die at relatively high core voltage.
Test Conditions:
room temperature 80f (I like to simulate summer conditions so no suprises later)
case temps 28C under full load
running Prime 95 for 30 minutes
The board uses a thermistor for core temps readings, not the most accurate, but more than good enough for a direct comparison on the same system.
Thermalright AX-7 with 40cfm 80mm fan:
Full load 47C
idle in Windows 34C
idle in bios 39C
Speeze SuperRock with stock 70mm fan:
Full load 49C
idle in Windows 28C
idle in bios 42C
It is interesting to note that at idle in Windows using Wpcrset, the SuperRock drops down to case temps within 2-3 minutes. The massive copper AX-7 cannot cool all the way down to case ambient once it has been heated up by a full load situation. If left to idle in Windows before the AX-7 gets warmed at full load, it actually drops to about 29C, but it takes 5 minutes or longer.
Using the 80mm 40cfm fan (3800rpm) the AX-7 is slightly louder than the SuperRock 70mm fan (4900rpm), although both are good examples of quiet heatsinks.
Under full load it is obvious that the AX-7 is better performing, also at idle in the bios it does a superior job. Of course, if you like noise, an 80mm delta will increase the performance of the AX-7, although I am sure if a similar fan solution could be found in a 70mm size the SuperRock would also improve.
For anything but the most extreme air-cooling solution, in my humble opinion the SuperRock is a better choice when you factor in the price. At $14 shipped on pricewatch, the SuperRock is less than half the price of the AX-7 with a fan, about $34 or more, depending on the fan you choose. I spend about 75% of my time online, and the rest gaming. So with the SuperRocks ability to drop quickly down to ambient case temperature, it actually spends more time being cooler than the AX-7, at least for my needs.
AX-7 pros:
superior cooling
works well with a quiet fan
3 tab clip device
many fan options
looks awesome
AX-7 cons
price
size/compatibility
weight
SuperRock pros:
good cooling
inexpensive
quiet
light weight
SuperRock cons:
difficult clip device
limited fan options
Test System:
Morgan 1.2GHz@1358MHz 2.02v
Abit KG7-Raid (AMD 761)
Generic mid-tower case: Four 80mm fans: one front intake, one side intake directly over heatsink, one power supply exhaust, one rear exhaust
Antec 400-watt
256MB PC2700 Samsung original
Radeon 9000 @ 300/250
CD-Rom, CD-Burner and floppy
Windows 98SE
Wpcrset
Not the fastest system, but it definately takes decent cooling with the small size of the Morgan die at relatively high core voltage.
Test Conditions:
room temperature 80f (I like to simulate summer conditions so no suprises later)
case temps 28C under full load
running Prime 95 for 30 minutes
The board uses a thermistor for core temps readings, not the most accurate, but more than good enough for a direct comparison on the same system.
Thermalright AX-7 with 40cfm 80mm fan:
Full load 47C
idle in Windows 34C
idle in bios 39C
Speeze SuperRock with stock 70mm fan:
Full load 49C
idle in Windows 28C
idle in bios 42C
It is interesting to note that at idle in Windows using Wpcrset, the SuperRock drops down to case temps within 2-3 minutes. The massive copper AX-7 cannot cool all the way down to case ambient once it has been heated up by a full load situation. If left to idle in Windows before the AX-7 gets warmed at full load, it actually drops to about 29C, but it takes 5 minutes or longer.
Using the 80mm 40cfm fan (3800rpm) the AX-7 is slightly louder than the SuperRock 70mm fan (4900rpm), although both are good examples of quiet heatsinks.
Under full load it is obvious that the AX-7 is better performing, also at idle in the bios it does a superior job. Of course, if you like noise, an 80mm delta will increase the performance of the AX-7, although I am sure if a similar fan solution could be found in a 70mm size the SuperRock would also improve.
For anything but the most extreme air-cooling solution, in my humble opinion the SuperRock is a better choice when you factor in the price. At $14 shipped on pricewatch, the SuperRock is less than half the price of the AX-7 with a fan, about $34 or more, depending on the fan you choose. I spend about 75% of my time online, and the rest gaming. So with the SuperRocks ability to drop quickly down to ambient case temperature, it actually spends more time being cooler than the AX-7, at least for my needs.
AX-7 pros:
superior cooling
works well with a quiet fan
3 tab clip device
many fan options
looks awesome
AX-7 cons
price
size/compatibility
weight
SuperRock pros:
good cooling
inexpensive
quiet
light weight
SuperRock cons:
difficult clip device
limited fan options
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