FrostyTech Mk.II Synthetic Thermal Heatsink Test Results AMD Phenom I/II, Athlon64 / FX / X2, Sempron class heatsinks Results based on readings from a 38x38mm copper interface die with 125W heat load on the K8 version of the Mk.II Test Platform. Temperature results listed for each heatsink were calculated by determining the rise over ambient temperatures at time of test. Information on Frostytech's test methodology is available here. Socket 939/940/754 & AM2/AM2+/AM3 compatible CPU heatsinks
manufacturer:	model no.:	*fan speed:	125w thermal test (°c)	noise level (dba)
ECT	Prometeia Mach2 GT		-49.8	49.1
Spire	Thermax Eclipse II		10.7	51.3
Thermaltake	Frio	high	11.1	62.6
Noctua	NH-D14	high	11.2	48.1
3Rsystem	iceage 120 Boss II	high	11.2	49.9
Zalman	CNPS10X Extreme	high	12.0	58.2
Tuniq	Tower 120 Extreme	high	12.3	43.5
Thermalright	Ultra-120		12.4	53.7
Zaward	Vapor 120	high	12.6	51.6
Prolimatech	Megahalems (80CFM)	high	12.7	53.0
Zalman	CNPS10X Flex (80CFM)		12.7	51.2
Zalman	CNPS10X Quiet	high	12.9	46.8
Spire	Thermax II (SP67951)	high	12.9	57.8
Sunbeamtech	Core-Contact Freezer	high	13.2	51.3
Coolermaster	V8	high	13.4	52.6
SilenX	EFZ-120HA4	high	13.7	48.7
DeepCool	Ice Blade Pro	high	13.7	46.1
Akasa	Venom	high	13.8	54.1
Xigmatek	DK-S1283	high	13.8	49.6
Titan	TTC-NK85TZ	high	14.0	58.6
Thermolab	BARAM		14.0	53.0
Thermolab	BARAM 2010 (80CFM)	high	14.0	51.3
SilenX	iXtrema IXC-120HA2	high	14.1	52.9
Coolink	Corator DS	high	14.2	54.9
Xigmatek	HDT-S1283	high	14.2	50.7
Thermaltake	Contac 29	high	14.4	48.2
Prolimatech	Megahalems (50CFM)	high	14.4	45.1
Coolermaster	Hyper 212 Plus	high	14.4	50.1
Xigmatek	HDT-S1284EE	high	14.4	44.2
DeepCool	GamerStorm	high	14.6	44.5
Danamics	LMX Extreme	high	14.6	55.4
Zalman	CNPS10X Flex (50CFM)		14.6	45.4
Evercool	HPJ-12025 Transformer 4		14.7	38.9
Kingwin	XT-1264	high	14.7	45.5
CoolIT	Domino ALC	high	14.7	60.2
DeepCool	Killer Whale Premium	high	14.9	52.5
Thermolab	BADA	high	15.0	54.0
Akasa	Nero AK967	high	15.0	39.3
Scythe	KAMA Angle	high	15.1	43.3
Coolermaster	Hyper Z600		15.1	47.7
Coolink	Silentator	high	15.2	41.2
DeepCool	Killer Whale	high	15.3	53.5
Vantec	VAF-1225 Aeroflow FX 120	high	15.3	54.2
Scythe	Mugen		15.3	46.0
Thermaltake	BigTyp 14Pro	high	15.4	59.7
Coolage	X120TF		15.5	53.0
Zerotherm	FZ120	high	15.5	47.6
Thermalright	Ultra 120 Extreme		15.5	44.5
Akasa	Venom Nano	high	15.7	57.5
OCZ	Vendetta 2	high	15.7	41.9
AVC	Black Samurai	high	15.9	56.7
Xigmatek	HDT-S983	high	15.9	52.7
Xigmatek	S1284 Achilles	high	16.0	42.7
Gelid	Tranquillo	high	16.1	41.3
3Rsystem	Iceage 120	high	16.1	47.9
EKL	GroB Clock'ner Blue Ed.	high	16.2	42.4
Xigmatek	HDT-SD964	high	16.3	57.2
Glacialtech	Alaska	high	16.5	48.3
Corsair	Hydro H50	high	16.5	45.6
EKL	GroB Clock'ner		16.5	40.6
Zalman	CNPS9700 LED	high	16.5	56.5
nPowerTek	Hurricane NPH-105 (NB Fan)	high	16.6	47.7
Zalman	CNPS9700NT	high	16.6	52.2
Xigmatek	Thors Hammer S126384		16.7	46.4
Cooler Master	Hyper Z600 Black Label	high	16.7	49.2
Scythe	Infinity SCINF-1000		16.7	37.8
Thermaltake	SpinQ VT	high	16.8	50.1
DeepCool	Ice Warrior	high	16.9	45.5
Tuniq	Tower 120	high	16.9	51.6
Ibuypower	IBP-Z001	high	16.9	61.7
Glacialtech	F101 PWM	high	17.1	47.5
OCZ	Gladiator Max	high	17.1	42.9
Nexus	HOC-9000	high	17.0	43.0
AVC	Z7U7414001 (stock AM2)	high	17.0	63.0
Coolermaster	Hyper 212		17.2	45.9
Noctua	NH-U12P	high	17.3	40.7
Zalman	CNPS9900 LED	high	17.5	57.5
Noctua	NH-U12		17.5	45.4
Gigabyte	GH-PCU23-VE	high	17.5	65.6
Scythe	Grand Kama Cross	high	17.6	45.9
Thermaltake	V1	high	17.6	59.6
Thermaltake	MaxOrb	high	17.7	57.4
XtremeGear	HP-1216B	high	17.8	54.0
Dynatron	Genius	high	17.9	47.2
Vantec	VAF-9225 Aeroflow FX92	high	17.9	57.9
Thermolab	BADA2010	high	18.2	44.3
Thermalright	Ultra-90	high	18.2	56.2
Coolermaster	GeminII S	high	18.3	49.6
OCZ	Vendetta	high	18.4	52.8
Thermaltake	MaxOrb EX	high	18.6	56.5
Gigabyte	G-Power Pro	high	18.6	71.9
Enzotech	Ultra-X	high	18.7	59.1
Noctua	NH-U9		18.8	58.4
Zerotherm	Nirvana NV 120 PWM	high	18.9	44.9
Noctua	NH-C12P	high	19.2	40.4
Thermaltake	ISGC-300	high	19.3	44.0
SilenX	EFZ-120HA3	high	19.5	41.7
Zalman	CNPS8700 LED	high	19.5	48.1
Evercool	Buffalo HPEA-10025		19.5	50.2
Glacialtech	Igloo 5751PWM	high	19.6	50.6
Coolermaster	Vortex Plus	high	19.6	54.6
Titan	Cool Idol TTC-NK75TZ	high	19.6	56.3
Apack	Zerotherm BTF92 OC Ed	high	19.7	53.6
Cooljag	Falcon 92-AL	high	19.8	52.1
DeepCool	IceWing 5 Pro	high	19.9	53.2
Thermaltake	ISGC-400	high	20.0	45.4
Akasa	AK-876	high	20.0	48.2
Xigmatek	HDT-S963	high	20.1	50.2
Akasa	AK-920	high	20.2	52.9
Evercool	Transformer 6	high	20.3	51.6
Thermaltake	SpinQ	high	20.4	50.9
Scythe	Mine Rev.B		20.4	36.8
Cooljag	Falcon 92-Cu	high	20.4	52.8
Apack	Zerotherm Nirvana 120	high	20.5	49.2
Apack	Zerotherm BTF90		20.5	52.1
Coolermaster	Hyper6	high	20.5	54.7
Scythe	Zipang 2		20.8	37.7
Gelid	Silent Spirit	high	20.8	48.5
Asus	Arctic Square	high	20.9	38.3
Coolermaster	Hyper N520		21.2	49.0
Apack	Zerotherm BTF80		21.3	51.9
Scythe	Andy Samuri Master SCASM-1000		21.5	38.4
Sunbeamtech	Core-Contact Freezer 92mm Ed.	high	21.5	50.2
Asus	Silent Knight 2	high	21.7	46.2
Asus	Silent Square EVO	high	21.7	42.8
Thermaltake	Venus 12	high	21.7	68.1
Zaward	Gyre ZCJ010	high	21.8	52.7
Glacialtech	Igloo 5750 PWM	high	21.9	52.3
Coolermaster	Hyper TX3	high	22.0	56.0
Thermalright	SI-128SE		22.0	44.5
Cooljag	SFO-Q	high	22.2	60.6
Glacialtech	Igloo 5760 PWM	high	22.4	50.3
Zalman	CNPS9300AT	high	22.5	55.5
ASUS	Triton 77	high	22.7	41.2
Noctua	NH-U9B	high	22.8	41.9
ASUS	Starice	high	22.8	67.4
Zalman	CNPS9500 AM2	high	23.0	53.2
Asus	Lionsquare	high	23.1	44.7
Arctic Cooling	Freezer 64 Pro		23.2	50.9
Coolermaster	Aquagate Mini R80	high	23.2	59.2
Scythe	Zipang		23.3	33.1
Thermaltake	Polo 735	high	23.4	68.0
Asus	Triton 79 Amazing		23.5	44.3
Cooljag	SFO-H	high	23.6	60.6
Alpha	PAL-8150		23.7	58.9
Zalman	CNPS9500 LED	high	23.8	50.3
Thermaltake	ISGC-200	high	23.9	48.7
3Rsystem	Iceage 90		24.2	47.2
Verax	Helado		24.3	36.3
Glacialtech	Igloo 5710 Silent		24.4	43.4
Auras	SLC-747	high	24.6	52.2
AVC	Z7U3301001 (stock 939)	high	24.6	59.9
Zalman	CNPS8000	high	24.8	57.4
Gigabyte	3D Cooler-Ultra	high	24.8	63.0
Zalman	CNPS7500-Cu LED	high	25.0	50.9
Scythe	Kama Cross		25.1	40.0
Coolage	Frozen Orb 2924HDC	high	25.3	56.0
Thermaltake	DuOrb		25.6	49.5
nPowertek	TTIC NPH1000		25.8	47.5
Glacialtech	Igloo 5750 Silent		26.0	35.5
OCZ	Tempest		26.0	51.6
Scythe	Shogun	high	26.0	45.9
Scythe	Big Shuriken	high	26.2	39.6
Scythe	Orochi SCORC-1000		26.2	27.8
Coolermaster	Hyper TX2		26.3	53.7
Rosewill	RCX-Z2-EX	high	26.3	45.9
EKL	V8	high	26.3	57.5
Rosewill	RCX-Z3	high	26.5	58.6
Auras	CTC-868 (closed)		26.6	48.7
Thermalfly	F1-IACSHA	high	26.6	60.4
Zalman	FS-C77		26.7	56.5
Gigabyte	3D Rocket-Pro	high	26.9	56.7
Zalman	CNPS7700-Cu	high	27.0	50.7
Gigabyte	3D Cooler-Pro	high	27.0	62.5
SilenX	EFZ-80HA2	high	27.5	40.6
nPowerTek	NPH-Big K8		27.8	54.0
Auras	LPT-709		27.9	43.9
Akasa	AK-922 (EVObue)	high	27.9	60.3
Zalman	CNPS7700-Cu LED	high	28.1	49.8
Akasa	AK-873	high	28.2	59.2
Scythe	Katana II		28.3	37.9
Spire	SP601B3		28.3	48.9
Cooljag	JYC 8A03A	high	28.5	50.6
Scythe	Ninja Mini		28.5	41.7
Glacialtech	UFO V51 Silent		28.7	42.4
Ajigo	MF064-074	high	28.8	60.3
Gigabyte	3D-Rocket		28.9	50.7
Vantec	Mach1	high	29.2	56.9
Gigabyte	Volar GH-PSV21-FB	high	29.4	56.1
Thermalright	SLK-948U		29.4	58.8
CoolJag	SFO-D(18SC)		29.6	64.0
Akasa	Revo (horizontal)	high	30.1	44.5
Antazone	AS-C1000		30.2	57.6
Arctic Cooling	Alpine 64		30.5	43.9
Zalman	CNPS7000A-Cu	high	30.3	45.2
Dynatron	SK-V24		30.3	56.4
Arctic Cooling	Alpine 64 Pro	high	30.6	46.4
Verax	Quattro 1	high	30.7	55.4
Xigmatek	AIO-S80DP	high	30.7	55.0
Zalman	CNPS7000-Cu	high	31.0	45.2
Coolermaster	Hyper48		31.7	43.6
Rosewill	RCX-Z1	high	31.9	54.1
Scythe	Kama SCKK1000		31.9	47.5
Scythe	Shuriken	high	32.0	38.2
Scythe	Samurai SCSM1000	high	32.1	51.6
Zalman	CNPS7000B-CU	high	32.3	44.9
Thermaltake	Silentboost K8		32.3	49.7
3Rsystem	Iceage 80 Prima Mini		33.1	35.4
Jetart	JAX801		33.2	53.5
Dynatron	A22		34.5	44.5
nPowertek	NPH K8-1		34.6	52.2
SilenX	EFZ-100HA1	high	35.0	38.0
Ajigo	MF043-044 (stock 754)		35.0	45.4
Glacialtech	Igloo 7321 Silent E		35.7	41.0
Arctic Cooling	Silencer 64 Ultra TC		37.5	55.5
Thermaltake	ISGC-100	high	37.7	45.5
Gigabyte	NeonCooler 8-BL		37.7	42.0
Spire	Fourier IV SP607B3-C		38.4	60.2
Asus	Triton 75		38.6	49.6
Glacialtech	Igloo 7312 Silent E		38.7	41.1
Titan	TTC-K8ATB/825/SC		38.7	63.1
Glacialtech	Igloo 7311 Silent		39.4	36.5
Akasa	AK-860SF		39.4	45.2
Glacialtech	Igloo 5751PWM	low	40.4	38.5
Asus	Triton 85	high	41.5	41.1
Evercool	K802-715		42.1	51.5
AMA	Serac 770		42.3	42.1
Glacialtech	Igloo 5610 Plus Silent		42.6	38.0
Spire	SP741B3		43.2	45.6
Nexus	VCT-9000	high	45.1	42.9
Arctic Cooling	Freezer 64 LP		45.3	42.6
Glacialtech	Igloo 7223 Light E		45.5	42.3
Glacialtech	Igloo 7222 Light		46.6	37.7
Evercool	Magic Cooler		46.6	55.5
Silverstone	NT07-AM2	high	51.0	45.6
Glacialtech	Igloo 5710 Plus Silent		62.4	39.3
			125w thermal test (°c)	noise level (dba)
*heatsinks are ranked according to the 125w thermal test results column (rise over ambient temp.). low temperatures with low noise levels are considered best. for reference heatsinks with variable-speed fans, only the high speed (12v) fan test result is included in the comparison sheet; more detailed results reside in each specific heatsink review.

with a 125w heat load applied by the frostytech amd k8 synthetic thermal test platform, the glacialtech igloo 5751 pwm heatsink yields a rise above ambient temperature of 19.6°c at stock fan speed (50.6dba noise). with one of its two fans operating at reduced speed (38.5 dba noise) the glacialtech igloo 5751 pwm maintains a poor 40.4°c temperature over ambient.

at full speed the igloo 5751pwm is about 3°c cooler performing than the original igloo 5750pwm model, and quieter too. unfortunately unbalanced airflow does what it often does by creating dramatically poorer performance at reduced fan speeds (40.4°c vs 26.3°c). we'll hold off on our conclusions until the results for Intel LGA775 version of FrostyTech's synthetic thermal test platform are in. That's next!