Radeon R5 M255 and Radeon HD 7670M - video card comparison
Passmark - benchmark score Radeon R5 M255 vs Radeon HD 7670M
Radeon R5 M255
550
Radeon HD 7670M
489
Radeon R5 M255
Radeon HD 7670M
Architecture
GCN (2011−2017)
Terascale 2 (2009−2015)
GPU code name
Topaz Pro / Sun
Thames XT
Market segment
Laptop
Laptop
Release date
May 2014
June 2011
Bus support
PCIe 3.0 x8
-
Interface
PCIe 3.0 x8
PCIe 2.0 x16
Boost clock speed
940 MHz
-
Compute units
5
-
Core clock speed
940 MHz
600 MHz
Floating-point performance
721.9 gflops
576.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,550 million
716 million
Pipelines / CUDA cores
320
480
Power consumption (TDP)
-
20 Watt
Texture fill rate
22.56
14.40
Memory type
DDR3
DDR3, (GDDR5)
Maximum RAM amount
4 GB
2 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
1000 MHz
1800 MHz
Memory bandwidth
16 GB/s
28.8 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
Eyefinity
+
-
DirectX
DirectX® 11
11.2 (11_0)
Mantle
+
-
OpenCL
Not Listed
1.2
OpenGL
4.4
4.4
Shader Model
6.3
5.0
Vulkan
-
N/A
AppAcceleration
+
-
DualGraphics
1
-
Enduro
-
-
HD3D
+
-
PowerTune
+
-
Switchable graphics
1
-
TrueAudio
-
-
ZeroCore
+
-