Radeon R9 390 and Radeon R7 260X - video card comparison
Passmark - benchmark score Radeon R9 390 vs Radeon R7 260X
Radeon R9 390
9182
Radeon R7 260X
3282
Radeon R9 390
Radeon R7 260X
Architecture
GCN 2.0 (2013−2017)
GCN 2.0 (2013−2017)
GPU code name
Grenada
Bonaire
Market segment
Desktop
Desktop
Release date
June 2015
October 2013
Bus support
PCIe 3.0
PCIe 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1 x 6-pin, 1 x 8-pin
1 x 6-pin
Bridgeless CrossFire
1
-
Boost clock speed
1000 MHz
1000 MHz
Floating-point performance
5,120 gflops
1,971 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
6,200 million
2,080 million
Pipelines / CUDA cores
2560
896
Power consumption (TDP)
275 Watt
115 Watt
Texture fill rate
160.0
61.60
Memory type
GDDR5
GDDR5
Maximum RAM amount
0 MB
4 GB
Memory bus width
512 Bit
128 Bit
Memory clock speed
1000 MHz
-
Memory bandwidth
384 GB/s
104 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
2.0
OpenGL
4.6
4.6
Shader Model
6.3
6.3
Vulkan
+
-
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
+
Enduro
-
-
FreeSync
1
1
HD3D
-
-
PowerTune
+
-
TrueAudio
+
-
VCE
+
-
ZeroCore
-
-