Radeon HD 7770 and Radeon E9171 MCM - video card comparison
Radeon HD 7770
Radeon E9171 MCM
Architecture
GCN (2011−2017)
GCN 4.0 (2016−2020)
GPU code name
Cape Verde
Lexa
Market segment
Desktop
Desktop
Release date
February 2012
October 2017
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
1x 6-pin
None
Boost clock speed
-
1219 MHz
Core clock speed
1000 MHz
1124 MHz
Floating-point performance
-
1,248 gflops
Manufacturing process technology
28 nm
14 nm
Number of transistors
1,500 million
2,200 million
Pipelines / CUDA cores
640
512
Power consumption (TDP)
80 Watt
40 Watt
Texture fill rate
40.00
39.01
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
4500 MHz
6000 MHz
Memory bandwidth
72 GB/s
96 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
+
-
HDMI
+
-
DirectX
12 (11_1)
12 (12_0)
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
1.2.131
1.2.131