Radeon R7 (Bristol Ridge) and GeForce GT 640M LE - video card comparison
Passmark - benchmark score Radeon R7 (Bristol Ridge) vs GeForce GT 640M LE
Radeon R7 (Bristol Ridge)
777
GeForce GT 640M LE
720
Radeon R7 (Bristol Ridge)
GeForce GT 640M LE
Architecture
GCN 1.2 (2015−2016)
Fermi / Kepler (2012)
GPU code name
Bristol Ridge
N13P-LP
Market segment
Laptop
Laptop
Release date
June 2016
March 2012
Bus support
-
PCI Express 2.0, PCI Express 3.0
Interface
-
PCIe 2.0 x16
Boost clock speed
900 MHz
-
Core clock speed
-
Up to 500 MHz
CUDA cores
-
Up to 384
Floating-point performance
-
384.0 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2410 Million
585 million
Pipelines / CUDA cores
512
384
Power consumption (TDP)
12-45 Watt
20 Watt
Texture fill rate
-
Up to 16.0 billion/sec
Memory type
-
DDR3\DDR5
Maximum RAM amount
-
2 GB
Memory bus width
64/128 Bit
128bit
Memory clock speed
-
1800 - 4000 MHz
Memory bandwidth
-
Up to 28.8 GB/s
Shared memory
+
-
Display Connectors
-
No outputs
HDMI
-
+
HDCP
-
+
Maximum VGA resolution
-
Up to 2048x1536
DirectX
12 (FL 12_0)
12 API
CUDA
-
+
OpenCL
-
1.1
OpenGL
-
4.5
Shader Model
-
5.1
Vulkan
-
N/A
3D Blu-Ray
-
+
Optimus
-
+