Nvidia way overstates the TDP for the 4000 series.
Hell the 4070Ti comes with a 2x8pin adaptor.
So at most itll be eating 300W.
But most likely itll be ~200W when gaming.
my 4080 averaged about 292W "out of the box" while running a mix of Time Spy, Firestrike, Heaven/Superposition, and Cyberpunk. Time Spy + Firestrike + Superposition were at 4K. I tried setting Heaven to 4K but not sure because the results said 1440p. Cyberpunk was at 1440p with everything maxed out.
for comparison, my overclocked 2080 was averaging 274W. after undervolting my 4080 it averaged 249W and i was getting slightly better scores and basically same fps as stock settings!
in stock settings the highest recorded power usage i saw was 305W when running Time Spy. lowest was 256W. with undervolting max was 262W and low 207W.
i might as well just post my notes....
RTX 2080 Overclocked
________
PORT ROYAL - 6983 [SCORE], 69.7C, 1.05V, 274W, 2025MHz
TIME SPY EXTREME - 5424 [SCORE], 69.7C, 1.05V, 280.6W, 2040MHz
FIRESTRIKE ULTRA - 6723 [SCORE], 58.1C, 1.05V, 275.6W, 2040MHz
HEAVEN 4K MAX - 2126 [SCORE] (36 - 181.3fps), 76C, 1.05V, 267.5W, 2055MHz
SUPERPOSITION - 8611 [SCORE] (47 - 80fps), 74.5C, 1.05V, 279.4W, 2025MHz
CYBERPUNK MAX NO DLSS - avg fps 21.6, 72.9C, 1.05V, 267.9W, 2025MHz
~
Averages
Celsius: 70.15
Voltage: 1.05
Watt: 274.16
Frequency: 2035
_____________________________________________________________________
RTX 4080 Stock
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PORT ROYAL - 17333 [SCORE], 57.1C, 1.075V, 297.8W, 2715MHz
TIME SPY EXTREME - 10571 [SCORE], 59.6C, 1.075V, 305.1W, 2715MHz
FIRESTRIKE ULTRA - 13903 [SCORE], 55.8C, 1.075V, 295W, 2730MHz
HEAVEN 4K MAX - 3972 [SCORE] (41 - 360fps), 54C, 1.075V, 256.1W, 2715MHz
SUPERPOSITION - 20613 [SCORE] (62 - 189fps), 59.1C, 1.075V, 299.7W, 2700MHz
CYBERPUNK MAX NO DLSS - avg fps 55.1fps, 59C, 1.075V, 294.6W, 2715MHz
~
Averages
C: 57.43 (-12.72 compared to 2080)
V: 1.075 (+0.025 compared to 2080)
W: 291.38 (+17.22 compared to 2080)
F: 2715 (+680 compared to 2080)
_____________________________________________________________________
RTX 4080 Undervolt
________
PORT ROYAL - 17365 [SCORE], 53.7C, 0.975V, 256.3W, 2700MHz.
TIME SPY EXTREME - 10435 [SCORE]. 54.6C, 0.975V, 262W, 2700MHz
FIRESTRIKE ULTRA - 14052 [SCORE], 52.5C, 0.975V, 260.85W, 2715MHz
HEAVEN 4K MAX - 3981 [SCORE] (33.1 - 359.7fps), 48.9C, 0.975V, 207.6W, 2700MHz
SUPERPOSITION - 20786 [SCORE] (105.3 - 190.7fps), 55.7C, 0.975V, 257.7W, 2700MHz
CYBERPUNK MAX NO DLSS - avg fps 55.4fps, 55.6C, 0.975V, 255W, 2700MHz
~
Averages
C: 53.5 (-3.93 compared to 4080 stock)
V: 0.975 (-0.100 compared to 4080 stock)
W: 249.91 (-41.47 compared to 4080 stock)
F: 2702 (-13 compared to 4080 stock)