Radeon R9 380X and GeForce GT 555M - video card comparison
Passmark - benchmark score Radeon R9 380X vs GeForce GT 555M
Radeon R9 380X
6380
GeForce GT 555M
674
Radeon R9 380X
GeForce GT 555M
Architecture
GCN 3.0 (2014−2017)
Fermi (2010−2014)
GPU code name
Antigua
N12E-GE-B
Market segment
Desktop
Laptop
Release date
November 2015
January 2011
Bus support
PCIe 3.0
PCI Express 2.0
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
2 x 6-pin
-
SLI options
-
+
Bridgeless CrossFire
1
-
Boost clock speed
970 MHz
753 MHz
Compute units
32
-
Core clock speed
-
Up to 753 MHz
CUDA cores
-
Up to 144
Floating-point performance
3,973 gflops
388.8 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
5,000 million
1,170 million
Pipelines / CUDA cores
2048
144
Power consumption (TDP)
190 Watt
35 Watt
Texture fill rate
124.2
Up to 16.2 billion/sec
Memory type
GDDR5
DDR3\DDR5
Maximum RAM amount
4 GB
3 GB
Memory bus width
256 Bit
Up to 192 bit/128 Bit
Memory clock speed
970 MHz
Up to 1569 MHz
Memory bandwidth
182.4 GB/s
Up to 50.2 GB/s
High bandwidth memory (HBM)
-
-
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
Eyefinity
1
-
Number of Eyefinity displays
6
-
HDMI
+
-
DisplayPort support
+
-
DirectX
DirectX® 12
12 API
CUDA
-
+
Mantle
+
-
OpenCL
2.0
1.1
OpenGL
4.5
4.5
Shader Model
6.3
5.1
Vulkan
+
N/A
3D Blu-Ray
-
+
3D Gaming
-
+
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
FRTC
1
-
HD3D
+
-
LiquidVR
1
-
Optimus
-
+
PowerTune
+
-
TrueAudio
+
-
VCE
+
-
ZeroCore
+
-