GeForce GTX 670 and Radeon R9 255 OEM - video card comparison
GeForce GTX 670
Radeon R9 255 OEM
Architecture
Kepler (2012−2018)
GCN 1.0 (2012−2020)
GPU code name
GK104
Cape Verde
Market segment
Desktop
Desktop
Release date
May 2012
December 2013
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
Two 6-pin
1x 6-pin
SLI options
+
-
Boost clock speed
980 MHz
930 MHz
Core clock speed
915 MHz
900 MHz
CUDA cores
1344
-
Floating-point performance
2,459.5 gflops
952.3 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
3,540 million
1,500 million
Pipelines / CUDA cores
1344
512
Power consumption (TDP)
170 Watt
65 Watt
Maximum GPU temperature
97 °C
-
Texture fill rate
102.5 billion/sec
29.76
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
256-bit GDDR5
128 Bit
Memory clock speed
6.0 GB/s
4600 MHz
Memory bandwidth
192.2 GB/s
73.6 GB/s
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
No outputs
Multi monitor support
4 displays
-
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
12 (11_1)
CUDA
+
-
OpenCL
1.2
1.2
OpenGL
4.2
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
1.2.131
3D Blu-Ray
+
-
3D Gaming
+
-
3D Vision
+
-