Radeon R9 380X and Radeon R9 270 - video card comparison
Passmark - benchmark score Radeon R9 380X vs Radeon R9 270
Radeon R9 380X
6380
Radeon R9 270
4435
Radeon R9 380X
Radeon R9 270
Architecture
GCN 3.0 (2014−2017)
GCN 1.0 (2012−2020)
GPU code name
Antigua
Curacao
Market segment
Desktop
Desktop
Release date
November 2015
November 2013
Bus support
PCIe 3.0
PCIe 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2 x 6-pin
1 x 6-pin
Bridgeless CrossFire
1
-
Boost clock speed
970 MHz
925 MHz
Compute units
32
-
Floating-point performance
3,973 gflops
2,368 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
5,000 million
2,800 million
Pipelines / CUDA cores
2048
1280
Power consumption (TDP)
190 Watt
150 Watt
Texture fill rate
124.2
74.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
970 MHz
-
Memory bandwidth
182.4 GB/s
179.2 GB/s
High bandwidth memory (HBM)
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x HDMI, 1x DisplayPort
Eyefinity
1
1
Number of Eyefinity displays
6
-
HDMI
+
+
DisplayPort support
+
+
DirectX
DirectX® 12
DirectX® 12
Mantle
+
-
OpenCL
2.0
1.2
OpenGL
4.5
4.6
Shader Model
6.3
5.1
Vulkan
+
+
AppAcceleration
-
-
CrossFire
1
1
DDMA audio
+
+
Enduro
-
-
FreeSync
1
1
FRTC
1
-
HD3D
+
+
LiquidVR
1
1
PowerTune
+
-
TressFX
-
1
TrueAudio
+
+
UVD
-
+
VCE
+
-
ZeroCore
+
-