GeForce GT 640M and HD Graphics 3000 - video card comparison
Passmark - benchmark score GeForce GT 640M vs HD Graphics 3000
GeForce GT 640M
943
HD Graphics 3000
262
GeForce GT 640M
HD Graphics 3000
Architecture
Kepler (2012−2018)
Gen. 6 Sandy Bridge (2011)
GPU code name
N13P-GS
Sandy Bridge
Market segment
Laptop
Laptop
Release date
March 2012
February 2011
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Boost clock speed
645 MHz
1350 MHz
Core clock speed
Up to 625 MHz
350 MHz
CUDA cores
384
-
Floating-point performance
480.0 gflops
20.4 gflops
Manufacturing process technology
28 nm
32 nm
Number of transistors
1,270 million
995 million
Pipelines / CUDA cores
384
12
Power consumption (TDP)
32 Watt
unknown
Texture fill rate
Up to 20.0 billion/sec
13.80
Memory type
DDR3\GDDR5
System Shared
Maximum RAM amount
2 GB
System Shared
Memory bus width
128bit
64/128 Bit
Memory clock speed
1800 - 4000 MHz
System Shared
Memory bandwidth
Up to 64.0 GB/s
-
Shared memory
-
+
Display Connectors
No outputs
No outputs
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
11.1 (10_1)
CUDA
+
-
OpenCL
1.1
N/A
OpenGL
4.5
3.1
Shader Model
5.1
4.1
Vulkan
1.1.126
N/A
3D Blu-Ray
+
-
Optimus
+
-