Brand

GeForce GT 640

Released
June 2012
GPUs > GeForce GT 640
40
kHash/sec
(3 reports avg.)
kH/s
Core Clock
Memory Clock

Litecoin Earnings Calculator

Hashrate (kHps)DifficultyPool Fee %
LTC / DayLTC / MonthLTC / Year

Litecoin Mining Reports

GPUkHpsCMVW°CMinerConfigNotes (OS/TEMPS/DRIVERS/HW/FIRMWARE)
GT 64040000cudaMiner 2013-04-22-l 82x2 -C 2 -i 04GB DDR3, 128-bit bus
GT 640, GT640-DCSL-2GD3251046198265GUIMiner-scrypt 0.03, cgminer-I 14 -w 128Modified 7770 preset
GT 640, GT-640-1GD5-L56000cudaMiner 2013-10-10-i 0 -C 2 -l K41x4Windows 7 x64,

Notes:

  • kH/s or kHps or kHash/s = kilohashes per second or the total hashing speed of all cores on the CPU or GPU.
  • Unless otherwise stated, "Clock", "Core" and "Memory" are in MHz.
  • Voltage: listed beside the voltage is the status of firmware or hardware voltage locking. Y = locked, N = not locked, U = unlocked by firmware modification, ? = no information available.
  • C = core clock, M = memory clock, V = voltage, W = watts

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