Radeon HD 6670 and GeForce GTX 680 Mac Edition - video card comparison
Radeon HD 6670
GeForce GTX 680 Mac Edition
Architecture
TeraScale 2 (2009−2015)
Kepler (2012−2018)
GPU code name
Turks
GK104
Market segment
Desktop
Desktop
Release date
April 2011
April 2013
Bus support
PCIe 2.0 x16
-
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
2x 6-pin
Boost clock speed
800 MHz
1058 MHz
Core clock speed
-
1006 MHz
Floating-point performance
768.0 gflops
3,250 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
716 million
3,540 million
Pipelines / CUDA cores
480
1536
Power consumption (TDP)
66 Watt
195 Watt
Texture fill rate
19.20
135.4
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
2 GB
Memory bus width
128 Bit
256 Bit
Memory clock speed
1050 MHz
6008 MHz
Memory bandwidth
64 GB/s
192.3 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x VGA
2x DVI, 1x HDMI, 1x DisplayPort
Eyefinity
1
-
HDMI
+
+
DisplayPort support
-
-
DirectX
DirectX® 11
12 (11_0)
CUDA
-
3.0
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.4
4.6
Shader Model
5.0
5.1
Vulkan
-
1.1.126
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-