GeForce GT 640M and Radeon R7 240 - video card comparison
Passmark - benchmark score GeForce GT 640M vs Radeon R7 240
GeForce GT 640M
946
Radeon R7 240
930
GeForce GT 640M
Radeon R7 240
Architecture
Kepler (2012−2018)
GCN 1.0 (2012−2020)
GPU code name
N13P-GS
Oland
Market segment
Laptop
Desktop
Release date
March 2012
October 2013
Bus support
PCI Express 2.0, PCI Express 3.0
PCIe 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
-
N/A
Boost clock speed
645 MHz
780 MHz
Core clock speed
Up to 625 MHz
-
CUDA cores
384
-
Floating-point performance
480.0 gflops
499.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,270 million
950 million
Pipelines / CUDA cores
384
320
Power consumption (TDP)
32 Watt
50 Watt
Texture fill rate
Up to 20.0 billion/sec
14.00
Memory type
DDR3\GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
128bit
128 Bit
Memory clock speed
1800 - 4000 MHz
1150 MHz
Memory bandwidth
Up to 64.0 GB/s
72 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x VGA
HDMI
+
+
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DisplayPort support
-
-
DirectX
12 API
DirectX® 12
CUDA
+
-
Mantle
-
-
OpenCL
1.1
1.2
OpenGL
4.5
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
-
3D Blu-Ray
+
-
AppAcceleration
-
-
CrossFire
-
1
DDMA audio
-
+
Enduro
-
-
FreeSync
-
1
HD3D
-
-
Optimus
+
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-