Radeon R9 380 and Radeon HD 6870 - video card comparison
Passmark - benchmark score Radeon R9 380 vs Radeon HD 6870
Radeon R9 380
6330
Radeon HD 6870
2285
Radeon R9 380
Radeon HD 6870
Architecture
GCN (2011−2017)
Terascale 2 (2009−2015)
GPU code name
Tonga Pro
RV940 Barts
Market segment
Desktop
Desktop
Release date
June 2015
October 2010
Bus support
PCIe 3.0
PCIe 2.0 x16
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
2 x 6-pin
2x 6-pin
Bridgeless CrossFire
1
-
Boost clock speed
970 MHz
900 MHz
Compute units
28
-
Floating-point performance
3,476 gflops
2,016.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
5,000 million
1,700 million
Pipelines / CUDA cores
1792
1120
Power consumption (TDP)
190 Watt
151 Watt
Texture fill rate
108.6
50.40
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
1 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
970 MHz
1050 MHz
Memory bandwidth
182.4 GB/s
134.4 GB/s
High bandwidth memory (HBM)
-
-
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x HDMI, 2x mini-DisplayPort
Eyefinity
+
1
Number of Eyefinity displays
6
-
HDMI
+
+
DisplayPort support
+
-
DirectX
DirectX® 12
DirectX® 11
Mantle
+
-
OpenCL
2.0
1.2
OpenGL
4.5
4.4
Shader Model
6.3
5.0
Vulkan
+
-
AppAcceleration
-
-
CrossFire
1
1
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
FRTC
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
+
-
TrueAudio
+
-
VCE
+
-
ZeroCore
+
-