Radeon R9 270X and Radeon R9 280X - video card comparison
Passmark - benchmark score Radeon R9 270X vs Radeon R9 280X
Radeon R9 270X
5036
Radeon R9 280X
6012
Radeon R9 270X
Radeon R9 280X
Architecture
GCN (2011−2017)
GCN (2011−2017)
GPU code name
Curacao XT
Thaiti XTL
Market segment
Desktop
Desktop
Release date
October 2013
October 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 + 1 x 8-pin
Boost clock speed
1050 MHz
1000 MHz
Floating-point performance
2,688 gflops
4,096 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,800 million
4,313 million
Pipelines / CUDA cores
1280
2048
Power consumption (TDP)
180 Watt
250 Watt
Texture fill rate
84.00
128.0
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
3 GB
Memory bus width
256 Bit
384 Bit
Memory bandwidth
179.2 GB/s
288 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x HDMI, 1x DisplayPort
Eyefinity
+
+
HDMI
+
+
DisplayPort support
+
+
DirectX
DirectX® 12
DirectX® 12
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
+
+
AppAcceleration
+
+
CrossFire
1
1
DDMA audio
+
+
Enduro
-
-
FreeSync
1
1
HD3D
+
+
LiquidVR
1
1
PowerTune
-
-
TressFX
1
1
TrueAudio
+
+
UVD
+
+
ZeroCore
-
-