Radeon R9 295X2 and Radeon R9 285X - video card comparison
Radeon R9 295X2
Radeon R9 285X
Architecture
GCN 2.0 (2013−2017)
GCN 3.0 (2014−2017)
GPU code name
Vesuvius
Tonga
Market segment
Desktop
Desktop
Release date
April 2014
-
Bus support
PCIe 2.1 x16
-
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2 x 8-pin
1x 6-pin + 1x 8-pin
Boost clock speed
1018 MHz
-
Core clock speed
-
1002 MHz
Floating-point performance
2x 5,733 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
6,200 million
5,000 million
Pipelines / CUDA cores
2816
2048
Power consumption (TDP)
500 Watt
200 Watt
Texture fill rate
179.2
128.3
Memory type
GDDR5
GDDR5
Maximum RAM amount
8 GB
3 GB
Memory bus width
512 Bit
384 Bit
Memory clock speed
1250 MHz
5.5 GB/s
Memory bandwidth
640 GB/s
264.0 GB/s
Display Connectors
1x DVI, 4x mini-DisplayPort
2x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2
Eyefinity
1
-
HDMI
+
+
DisplayPort support
-
-
DirectX
DirectX® 12
12 (12_0)
Mantle
-
-
OpenCL
2.0
2.1
OpenGL
4.6
4.6
Shader Model
6.3
6.5
Vulkan
+
1.2.170
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
-
-
TressFX
1
-
TrueAudio
-
-
UVD
+
-
ZeroCore
-
-