GeForce GT 640M - video card specification
Passmark - benchmark score GeForce GT 640M
GeForce GT 640M
943
GeForce GT 640M
Architecture
Kepler (2012−2018)
GPU code name
N13P-GS
Market segment
Laptop
Release date
March 2012
Bus support
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 3.0 x16
Supplementary power connectors
-
Bridgeless CrossFire
-
Boost clock speed
645 MHz
Core clock speed
Up to 625 MHz
CUDA cores
384
Floating-point performance
480.0 gflops
Manufacturing process technology
28 nm
Number of transistors
1,270 million
Pipelines / CUDA cores
384
Power consumption (TDP)
32 Watt
Texture fill rate
Up to 20.0 billion/sec
Memory type
DDR3\GDDR5
Maximum RAM amount
2 GB
Memory bus width
128bit
Memory clock speed
1800 - 4000 MHz
Memory bandwidth
Up to 64.0 GB/s
High bandwidth memory (HBM)
-
Shared memory
-
Display Connectors
No outputs
Eyefinity
-
Number of Eyefinity displays
-
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
DisplayPort support
-
DirectX
12 API
CUDA
+
Mantle
-
OpenCL
1.1
OpenGL
4.5
Shader Model
5.1
Vulkan
1.1.126
3D Blu-Ray
+
AppAcceleration
-
CrossFire
-
DDMA audio
-
Enduro
-
FreeSync
-
HD3D
-
Optimus
+
PowerTune
-
TrueAudio
-
VCE
-
ZeroCore
-