Radeon R9 M385X and GeForce 820M - video card comparison
Passmark - benchmark score Radeon R9 M385X vs GeForce 820M
Radeon R9 M385X
2053
GeForce 820M
511
Radeon R9 M385X
GeForce 820M
Architecture
GCN (2011−2017)
Fermi (2010−2014)
GPU code name
Strato-XT-M3
N15V-GM
Market segment
Laptop
Laptop
Release date
June 2015
January 2014
Bus support
PCIe 3.0
PCI Express 2.0
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Boost clock speed
1100 MHz
-
Core clock speed
1100 MHz
775 MHz
Floating-point performance
1,971 gflops
240.0 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,080 million
585 million
Pipelines / CUDA cores
896
96
Power consumption (TDP)
-
15 Watt
Texture fill rate
61.60
10.00
Memory type
GDDR5
DDR3
Maximum RAM amount
4 GB
2 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
1500 MHz
1800 MHz
Memory bandwidth
76.8 GB/s
14.4 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
Eyefinity
1
-
DirectX
DirectX® 12
12 (11_0)
CUDA
-
+
Mantle
+
-
OpenCL
Not Listed
1.1
OpenGL
4.4
4.5
Shader Model
6.3
5.1
Vulkan
-
N/A
AppAcceleration
-
-
DualGraphics
1
-
Enduro
-
-
FreeSync
1
-
GameWorks
-
+
GPU Boost
-
2.0
HD3D
+
-
Optimus
-
+
PowerTune
+
-
Switchable graphics
1
-
TrueAudio
-
-
ZeroCore
+
-