Radeon HD 6770 and GeForce GTX 775M Mac Edition - video card comparison
Radeon HD 6770
GeForce GTX 775M Mac Edition
Architecture
TeraScale 2 (2009−2015)
Kepler (2012−2018)
GPU code name
Juniper
GK104
Market segment
Desktop
Desktop
Release date
January 2011
November 2013
Bus support
PCIe 2.0 x16
-
Interface
PCIe 2.0 x16
MXM-B (3.0)
Supplementary power connectors
1x 6-pin
-
Boost clock speed
900 MHz
-
Core clock speed
-
797 MHz
Floating-point performance
1,360.0 gflops
2,142 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
1,040 million
3,540 million
Pipelines / CUDA cores
800
1344
Power consumption (TDP)
108 Watt
100 Watt
Texture fill rate
34.00
89.26
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
2 GB
Memory bus width
128 Bit
256 Bit
Memory clock speed
1050 MHz
5000 MHz
Memory bandwidth
76.8 GB/s
160.0 GB/s
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
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
-
-