Iris Plus Graphics 640 and Radeon HD 6770M Mac Edition - video card comparison
Iris Plus Graphics 640
Radeon HD 6770M Mac Edition
Architecture
Gen. 9.5 Kaby Lake (2015−2017)
TeraScale 2 (2009−2015)
GPU code name
Kaby Lake GT3e
Whistler
Market segment
Laptop
Desktop
Release date
January 2017
January 2011
Interface
PCIe 3.0 x1
MXM-A (3.0)
Boost clock speed
1050 MHz
-
Core clock speed
300 MHz
725 MHz
Floating-point performance
-
696.0 gflops
Manufacturing process technology
14 nm
40 nm
Number of transistors
189 million
716 million
Pipelines / CUDA cores
48
480
Power consumption (TDP)
15 Watt
35 Watt
Texture fill rate
52.80
17.40
Memory type
DDR3L/LPDDR3/DDR4
GDDR5
Maximum RAM amount
32 GB
512 MB
Memory bus width
64/128 Bit
128 Bit
Memory clock speed
System Shared
3600 MHz
Memory bandwidth
-
57.6 GB/s
Shared memory
+
-
Display Connectors
No outputs
No outputs
DirectX
12 (12_1)
11.2 (11_0)
OpenCL
2.1
1.2
OpenGL
4.6
4.4
Shader Model
6.4
5.0
Vulkan
1.1.103
N/A
Quick Sync
+
-