Thermalright HR-03 or Arctic Cooling Accelero S1 - which is better ?

[pasatoiutd]

One friend of mine, tested S1 on a X1900XT using different 120mm coolers, and the temperatures were as it follows:

X1900 XT @ 655/1550 MHz @ 1.35V vGPU

Accelero S1 + Scythe DFS122512L @ 12V (~1300 RPM) - IDLE: 39*C - LOAD: 51*C
Accelero S1 + Scythe DFS122512L @ 7V (~700 RPM) - IDLE: 40*C - LOAD: 58*C.
Accelero S1 + Scythe DFS122512L @ 5V (~550 RPM) - IDLE: 42*C - LOAD: 56*C
Accelero S1 + Scythe DFS122512L @ 7V (~750 RPM) - IDLE: 37*C - LOAD: 50*C (lower ambient temperature, probably ~ 25C, while >30C for the rest of the tests).

Accelero S1 + Sunon KD1212PMB1-6A @ 12V (3100 RPM) & Sunon KD1212PMS1-6A @ 12V (3000 RPM) - IDLE: 38*C - LOAD: 45*C
Accelero S1 + Sunon KD1212PMB1-6A @ 12V (3100 RPM) - IDLE: 38*C - LOAD: 46*C
Accelero S1 + Sunon KD1212PMS1-6A @ 12V (3000 RPM) - IDLE: 38*C - LOAD: 47*C
Accelero S1 + Sunon KD1212PMS1-6A @ 7V - IDLE: 39*C - LOAD: 48*C
Accelero S1 + Sunon KD1212PMS1-6A @ 5V - IDLE: 39*C - LOAD: 52*C

(lower ambient temperature)
Accelero S1 + Nexus DF1209SL-3 @ 12V (~1500 RPM) - IDLE: 37*C - LOAD: 52*C
Accelero S1 + Nexus DF1209SL-3 @ 7V (~875 RPM) - IDLE: 39*C - LOAD: 58*C.
Accelero S1 + Nexus DF1209SL-3 @ 5V (~625 RPM) - IDLE: 42*C - LOAD: 69-70*C.

X1900 XT @ 702/1550 MHz @ 1.45V
Accelero S1 + Scythe DFS122512L @ 12V (~1300 RPM) - IDLE: 41*C - LOAD: 55*C.

X1900XT @ 730/1550 MHz @ 1.5V vGPU
Accelero S1 + Scythe DFS122512L @ 12V (~1300 RPM) - IDLE: 41*C - LOAD: 57*C

I don't know his ambient temperature, but he uses an open case test-bed. Anyway, I'm more than sure that his room temperature never went below 25C ... it has been pretty hot in Romania in the last few days: 40 - 41C.