Radeon Pro Duo and Radeon HD 8990 OEM - video card comparison
Radeon Pro Duo
Radeon HD 8990 OEM
Architecture
GCN 3.0 (2014−2017)
GCN 1.0 (2012−2020)
GPU code name
Capsaicin
Malta
Market segment
Workstation
Desktop
Release date
April 2016
April 2013
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
3x 8-pin
2x 8-pin
Boost clock speed
1000 MHz
1000 MHz
Compute units
128
-
Core clock speed
-
950 MHz
Floating-point performance
2x 8,192 gflops
2x 4,096 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
8,900 million
4,313 million
Pipelines / CUDA cores
4096
2048
Power consumption (TDP)
350 Watt
375 Watt
Texture fill rate
256.0
128.0
Memory type
High Bandwidth Memory (HBM)
GDDR5
Maximum RAM amount
8 GB
3 GB
Memory bus width
4096 Bit
384 Bit
Memory clock speed
500 MHz
6000 MHz
Memory bandwidth
512 GB/s
288.0 GB/s
Display Connectors
1x HDMI, 3x DisplayPort
1x DVI, 4x mini-DisplayPort
Eyefinity
1
-
Number of Eyefinity displays
6
-
HDMI
+
-
DisplayPort support
+
-
DirectX
DirectX® 12
12 (11_1)
Mantle
+
-
OpenCL
2.0
1.2
OpenGL
4.5
4.6
Shader Model
6.0
5.1
Vulkan
+
1.2.131
AppAcceleration
+
-
CrossFire
1
-
Enduro
+
-
FreeSync
1
-
FRTC
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
+
-
TressFX
1
-
TrueAudio
+
-
UVD
+
-
VCE
+
-
ZeroCore
+
-