
GeForce GT 640M Mac Edition - video card specification
GeForce GT 640M Mac Edition
Architecture
Kepler (2012−2018)
GPU code name
GK107
Market segment
Desktop
Release date
February 2013
Bus support
-
Interface
PCIe 3.0 x16
Supplementary power connectors
-
Bridgeless CrossFire
-
Boost clock speed
-
Compute units
-
Core clock speed
745 MHz
Floating-point performance
572.2 gflops
Manufacturing process technology
28 nm
Number of transistors
1,270 million
Pipelines / CUDA cores
384
Power consumption (TDP)
32 Watt
Texture fill rate
23.84
Memory type
GDDR5
Maximum RAM amount
512 MB
Memory bus width
64 Bit
Memory clock speed
5000 MHz
Memory bandwidth
40 GB/s
High bandwidth memory (HBM)
-
Display Connectors
No outputs
Eyefinity
-
Number of Eyefinity displays
-
HDMI
-
DisplayPort support
-
DirectX
12 (11_0)
CUDA
3.0
Mantle
-
OpenCL
1.2
OpenGL
4.6
Shader Model
5.1
Vulkan
1.1.126
AppAcceleration
-
CrossFire
-
DDMA audio
-
Enduro
-
FreeSync
-
FRTC
-
HD3D
-
LiquidVR
-
PowerTune
-
TressFX
-
TrueAudio
-
UVD
-
VCE
-
ZeroCore
-