Radeon R9 390X and GeForce GT 545 OEM - video card comparison
Radeon R9 390X
GeForce GT 545 OEM
Architecture
GCN (2011−2017)
Fermi 2.0 (2010−2014)
GPU code name
Grenada XT
GF116
Market segment
Desktop
Desktop
Release date
June 2015
May 2011
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1 x 6-pin, 1 x 8-pin
1x 6-pin
Bridgeless CrossFire
1
-
Boost clock speed
1050 MHz
-
Core clock speed
-
871 MHz
Floating-point performance
5,914 gflops
501.4 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
6,200 million
1,170 million
Pipelines / CUDA cores
2816
144
Power consumption (TDP)
275 Watt
105 Watt
Texture fill rate
184.8
20.90
Memory type
GDDR5
GDDR5
Maximum RAM amount
0 MB
1 GB
Memory bus width
512 Bit
128 Bit
Memory clock speed
1050 MHz
4000 MHz
Memory bandwidth
384 GB/s
64 GB/s
High bandwidth memory (HBM)
-
-
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x mini-HDMI
Eyefinity
+
-
Number of Eyefinity displays
6
-
HDMI
+
+
DisplayPort support
+
-
DirectX
DirectX® 12
12 (11_0)
CUDA
-
2.1
Mantle
+
-
OpenCL
2.0
1.1
OpenGL
4.6
4.6
Shader Model
6.3
5.1
Vulkan
+
N/A
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
+
-
TrueAudio
+
-
VCE
+
-
ZeroCore
-
-