Radeon R6 M255DX and GeForce 820M - video card comparison
Passmark - benchmark score Radeon R6 M255DX vs GeForce 820M
Radeon R6 M255DX
623
GeForce 820M
511
Radeon R6 M255DX
GeForce 820M
Architecture
GCN (2011−2017)
Fermi (2010−2014)
GPU code name
Jet UL(T) DDR3
N15V-GM
Market segment
Laptop
Laptop
Release date
June 2014
January 2014
Bus support
-
PCI Express 2.0
Interface
IGP
PCIe 2.0 x16
Boost clock speed
940 MHz
-
Core clock speed
855 / 514 MHz
775 MHz
Floating-point performance
-
240.0 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
690 million
585 million
Pipelines / CUDA cores
576
96
Power consumption (TDP)
-
15 Watt
Texture fill rate
17.10
10.00
Memory type
DDR3
DDR3
Maximum RAM amount
System Shared
2 GB
Memory bus width
System Shared
64 Bit
Memory clock speed
System Shared
1800 MHz
Memory bandwidth
-
14.4 GB/s
Shared memory
+
-
Display Connectors
No outputs
No outputs
Eyefinity
+
-
DirectX
12 (11_1)
12 (11_0)
CUDA
-
+
OpenCL
1.2
1.1
OpenGL
4.6
4.5
Shader Model
5.1
5.1
Vulkan
1.2.131
N/A
AppAcceleration
+
-
GameWorks
-
+
GPU Boost
-
2.0
Optimus
-
+