GeForce GTX 670MX and Radeon R5 M255 - video card comparison
Passmark - benchmark score GeForce GTX 670MX vs Radeon R5 M255
GeForce GTX 670MX
2005
Radeon R5 M255
550
GeForce GTX 670MX
Radeon R5 M255
Architecture
Kepler (2012−2018)
GCN (2011−2017)
GPU code name
N13E-GR
Topaz Pro / Sun
Market segment
Laptop
Laptop
Release date
October 2012
May 2014
Bus support
PCI Express 2.0
PCIe 3.0 x8
Interface
PCIe 3.0 x16
PCIe 3.0 x8
SLI options
+
-
Boost clock speed
-
940 MHz
Compute units
-
5
Core clock speed
600 MHz
940 MHz
CUDA cores
960
-
Floating-point performance
1,154 gflops
721.9 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
3,540 million
1,550 million
Pipelines / CUDA cores
960
320
Power consumption (TDP)
75 Watt
-
Texture fill rate
48.0 billion/sec
22.56
Memory type
GDDR5
DDR3
Maximum RAM amount
3 GB
4 GB
Memory bus width
192 Bit
64 Bit
Memory clock speed
1400 MHz
1000 MHz
Memory bandwidth
67.2 GB/s
16 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
Eyefinity
-
+
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
DirectX® 11
CUDA
+
-
Mantle
-
+
OpenCL
1.1
Not Listed
OpenGL
4.5
4.4
Shader Model
5.1
6.3
Vulkan
1.1.126
-
AppAcceleration
-
+
DualGraphics
-
1
Enduro
-
-
HD3D
-
+
Optimus
+
-
PowerTune
-
+
Switchable graphics
-
1
TrueAudio
-
-
ZeroCore
-
+