
GeForce GT 640 OEM Rebrand - video card specification
GeForce GT 640 OEM Rebrand
Architecture
Fermi 2.0 (2010−2014)
GPU code name
GF116
Market segment
Desktop
Release date
April 2012
Bus support
-
Interface
PCIe 2.0 x16
Supplementary power connectors
None
Bridgeless CrossFire
-
Boost clock speed
-
Core clock speed
720 MHz
Floating-point performance
414.7 gflops
Manufacturing process technology
40 nm
Number of transistors
1,170 million
Pipelines / CUDA cores
144
Power consumption (TDP)
75 Watt
Texture fill rate
17.28
Memory type
DDR3
Maximum RAM amount
1536 MB
Memory bus width
192 Bit
Memory clock speed
1600 MHz
Memory bandwidth
38.4 GB/s
High bandwidth memory (HBM)
-
Display Connectors
2x DVI, 1x mini-HDMI
Eyefinity
-
Number of Eyefinity displays
-
HDMI
+
DisplayPort support
-
DirectX
12 (11_0)
CUDA
2.1
Mantle
-
OpenCL
1.1
OpenGL
4.6
Shader Model
5.1
Vulkan
N/A
AppAcceleration
-
CrossFire
-
DDMA audio
-
Enduro
-
FreeSync
-
HD3D
-
PowerTune
-
TrueAudio
-
VCE
-
ZeroCore
-