CPU Heat Dissipation Table

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W/cm?? describes how much wattage the CPU is dissipating through 1 cm?? of die area. The higher that number goes, the harder it takes the heat sink to remove that heat - at reasonable speed.

Tr.density is "transistor density" measured in transistors per mm?? die area. But remember that L2 cache is generally packed a lot more dense than the CPU core logic. Especially Intel pack their L2 caches very dense.

CPU	Fab width nm	Core Voltage V	Speed MHz	Die size mm??	Transistors mil	Dissipation Watts	Current Amps	Watts cm??	Tr. density tr./mm??
Alpha 21264	350	2.30	466	310	15.20	82	35	26.45	49032
Alpha 21264	350	2.30	500	310	15.20	91	39	29.35	49032
Alpha 21264	350	2.30	550	310	15.20	100	43	32.26	49032
Alpha 21264	350	2.30	575	310	15.20	107	46	34.68	49032
Alpha 21264	350	2.30	600	310	15.20	109	47	35.16	49032
AMD Athlon	250	1.60	500	184	22.00	42	26	22.83	119565
AMD Athlon	250	1.60	550	184	22.00	46	28	25.00	119565
AMD Athlon	250	1.60	600	184	22.00	50	31	27.17	119565
AMD Athlon	250	1.60	650	184	22.00	54	33	29.35	119565
AMD Athlon	250	1.60	700	184	22.00	50	31	27.17	119565
AMD Athlon	180	1.60	550	102	22.00	31	19	30.39	215686
AMD Athlon	180	1.60	600	102	22.00	34	21	33.33	215686
AMD Athlon	180	1.60	650	102	22.00	36	22	35.29	215686
AMD Athlon	180	1.60	700	102	22.00	39	24	38.24	215686
AMD Athlon	180	1.60	750	102	22.00	40	25	39.22	215686
AMD Athlon	180	1.70	800	102	22.00	48	28	47.06	215686
AMD Athlon	180	1.70	850	102	22.00	50	29	49.02	215686
AMD Athlon	180	1.80	900	102	22.00	60	33	58.82	215686
AMD Athlon	180	1.80	950	102	22.00	62	34	60.78	215686
AMD Athlon	180	1.80	1000	102	22.00	65	36	63.73	215686
AMD Duron	180	1.50	600	100	25.75	22	17	22.70	257500
AMD Duron	180	1.50	700	100	25.75	24	18	24.30	257500
AMD Duron	180	1.50	750	100	25.75	25	19	25.50	257500
AMD K6	350	2.90	166	157	8.80	17	5	10.96	56051
AMD K6	350	2.90	200	157	8.80	20	6	12.74	56051
AMD K6	350	3.20	233	157	8.80	28	8	18.03	56051
AMD K6	250	2.20	200	68	8.80	12	5	18.31	129412
AMD K6	250	2.20	233	68	8.80	13	6	19.85	129412
AMD K6	250	2.20	266	68	8.80	14	6	21.40	129412
AMD K6	250	2.20	300	68	8.80	15	7	22.65	129412
AMD K6 2	250	2.20	266	81	9.30	14	6	18.15	114815
AMD K6 2	250	2.20	300	81	9.30	17	7	21.23	114815
AMD K6 2	250	2.20	333	81	9.30	19	8	23.46	114815
AMD K6 2	250	2.20	350	81	9.30	19	9	24.63	114815
AMD K6 2	250	2.20	366	81	9.30	20	9	25.68	114815
AMD K6 2	250	2.20	380	81	9.30	21	9	26.67	114815
AMD K6 2	250	2.40	400	81	9.30	22	9	28.02	114815
AMD K6 2	250	2.40	450	81	9.30	28	11	35.06	114815
AMD K6 2	250	2.40	475	81	9.30	29	12	36.54	114815
AMD K6 2	250	2.20	400	81	9.30	16	7	20.86	114815
AMD K6 2	250	2.20	450	81	9.30	18	8	23.21	114815
AMD K6 2	250	2.20	475	81	9.30	19	9	24.44	114815
AMD K6 2	250	2.20	500	81	9.30	20	9	25.62	114815
AMD K6 3	250	2.20	400	118	21.30	18	8	15.34	180508
AMD K6 3	250	2.20	450	118	21.30	20	9	17.12	180508
AMD K6 3	250	2.40	400	118	21.30	26	11	22.71	180508
AMD K6 3	250	2.40	450	118	21.30	29	12	25.00	180508
AMD Thunderbird	180	1.70	650	120	37.00	36	21	30.08	308333
AMD Thunderbird	180	1.70	700	120	37.00	38	22	31.92	308333
AMD Thunderbird	180	1.70	750	120	37.00	40	23	33.67	308333
AMD Thunderbird	180	1.70	800	120	37.00	42	25	35.50	308333
AMD Thunderbird	180	1.70	850	120	37.00	44	26	37.33	308333
AMD Thunderbird	180	1.75	900	120	37.00	49	28	41.42	308333
AMD Thunderbird	180	1.75	950	120	37.00	52	29	43.33	308333
AMD Thunderbird	180	1.75	1000	120	37.00	54	31	45.25	308333
Intel Celeron	250	2.00	300	154	19.00	18	9	11.56	123377
Intel Celeron	250	2.00	333	154	19.00	20	10	12.79	123377
Intel Celeron	250	2.00	366	154	19.00	22	11	14.09	123377
Intel Celeron	250	2.00	400	154	19.00	24	12	15.39	123377
Intel Celeron	250	2.00	433	154	19.00	24	12	15.65	123377
Intel Celeron	250	2.00	466	154	19.00	26	13	16.62	123377
Intel Celeron	250	2.00	500	154	19.00	27	14	17.53	123377
Intel Celeron	250	2.00	533	154	19.00	28	14	18.38	123377
Intel Celeron	180	1.50	533	105	28.10	17	11	23.60	267619
Intel Celeron	180	1.50	566	105	28.10	18	12	24.70	267619
Intel Celeron	180	1.50	600	105	28.10	18	12	24.80	267619
Intel Pentium 3	250	2.00	450	125	9.50	25	12	20.24	76000
Intel Pentium 3	250	2.00	500	125	9.50	28	14	22.40	76000
Intel Pentium 3	250	2.00	550	125	9.50	30	15	24.64	76000
Intel Pentium 3	250	2.00	600	125	9.50	34	17	27.60	76000
Intel Pentium 3	180	1.65	650	105	28.10	21	13	20.48	267619
Intel Pentium 3	180	1.65	667	105	28.10	22	13	20.95	267619
Intel Pentium 3	180	1.65	700	105	28.10	23	14	22.00	267619
Intel Pentium 3	180	1.65	733	105	28.10	24	15	22.95	267619
Intel Pentium 3	180	1.65	750	105	28.10	24	15	23.52	267619
Intel Pentium 3	180	1.65	800	105	28.10	26	16	25.14	267619
Intel Pentium 3 B	250	2.05	533	125	9.50	29	14	23.76	76000
Intel Pentium 3 B	250	2.00	600	125	9.50	34	17	27.60	76000
Intel Pentium 3 E	180	1.60	550	105	28.10	18	11	17.33	267619
Intel Pentium 3 E	180	1.65	600	105	28.10	19	12	18.86	267619
Intel Pentium 3 EB	180	1.65	533	105	28.10	17	11	16.76	267619
Intel Pentium 3 EB	180	1.65	600	105	28.10	19	12	18.86	267619
Intel Pentium 3 EB	180	1.65	800	105	28.10	26	16	25.14	267619
Intel Pentium 3 EB	180	1.70	1000	105	28.10	33	19	31.43	267619
Motorola 7400 (G4)	200	1.80	350	83	10.50	10	6	13.13	126506
Motorola 7400 (G4)	200	1.80	400	83	10.50	11	6	13.86	126506
Motorola 750A (G3)	290	2.60	200	67	6.35	6	2	8.96	94776
Motorola 750A (G3)	290	2.60	233	67	6.35	7	2	10.45	94776
Motorola 750A (G3)	290	2.60	266	67	6.35	7	3	11.79	94776