Radeon R9 270X and Radeon Pro 555X - video card comparison
Passmark - benchmark score Radeon R9 270X vs Radeon Pro 555X
Radeon R9 270X
5036
Radeon Pro 555X
3332
Radeon R9 270X
Radeon Pro 555X
Architecture
GCN (2011−2017)
Polaris (2016−2019)
GPU code name
Curacao XT
Polaris 21
Market segment
Desktop
Mobile workstation
Release date
October 2013
June 2017
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
2 x 6-pin
None
Boost clock speed
1050 MHz
-
Core clock speed
-
855 MHz
Floating-point performance
2,688 gflops
-
Manufacturing process technology
28 nm
14 nm
Number of transistors
2,800 million
3,000 million
Pipelines / CUDA cores
1280
768
Power consumption (TDP)
180 Watt
-
Texture fill rate
84.00
43.54
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
4 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
-
5080 MHz
Memory bandwidth
179.2 GB/s
81.6 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
Eyefinity
+
-
HDMI
+
-
DisplayPort support
+
-
DirectX
DirectX® 12
12 (12_0)
Mantle
-
-
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
+
1.2.131
AppAcceleration
+
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
+
HD3D
+
-
LiquidVR
1
-
PowerTune
-
-
TressFX
1
-
TrueAudio
+
-
UVD
+
-
ZeroCore
-
-