Radeon Pro 555X and Radeon HD 7770 - video card comparison
Passmark - benchmark score Radeon Pro 555X vs Radeon HD 7770
Radeon Pro 555X
3332
Radeon HD 7770
2235
Radeon Pro 555X
Radeon HD 7770
Architecture
Polaris (2016−2019)
GCN (2011−2017)
GPU code name
Polaris 21
Cape Verde
Market segment
Mobile workstation
Desktop
Release date
June 2017
February 2012
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Supplementary power connectors
None
1x 6-pin
Core clock speed
855 MHz
1000 MHz
Manufacturing process technology
14 nm
28 nm
Number of transistors
3,000 million
1,500 million
Pipelines / CUDA cores
768
640
Power consumption (TDP)
-
80 Watt
Texture fill rate
43.54
40.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
5080 MHz
4500 MHz
Memory bandwidth
81.6 GB/s
72 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x DVI, 1x HDMI, 2x mini-DisplayPort
Eyefinity
-
+
HDMI
-
+
DirectX
12 (12_0)
12 (11_1)
OpenCL
2.0
1.2
OpenGL
4.6
4.6
Shader Model
6.4
5.1
Vulkan
1.2.131
1.2.131
FreeSync
+
-