Radeon R9 390 X2 and GeForce GTX 590 - video card comparison
Radeon R9 390 X2
GeForce GTX 590
Architecture
GCN 2.0 (2013−2017)
Fermi (2010−2014)
GPU code name
Grenada
GF110
Market segment
Desktop
Desktop
Release date
September 2015
March 2011
Bus support
-
16x PCI-E 2.0
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
4x 8-pin
Two 8-pin
SLI options
-
+
Core clock speed
1000 MHz
607 MHz
CUDA cores
-
1024
Floating-point performance
2x 5,120 gflops
2x 1,244.2 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
6,200 million
3,000 million
Pipelines / CUDA cores
2560
1024
Power consumption (TDP)
580 Watt
365 Watt
Maximum GPU temperature
-
97 °C
Texture fill rate
160.0
77.7 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
8 GB
3072 MB (1536 MB per GPU)
Memory bus width
512 Bit
768-bit (384-bit per GPU)
Memory clock speed
5400 MHz
1707 MHz
Memory bandwidth
345.6 GB/s
327.7 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
Three Dual Link DVI-IMini DisplayPort
Multi monitor support
-
+
HDMI
+
+
Maximum VGA resolution
-
2048x1536
Audio input for HDMI
-
Internal
DirectX
12 (12_0)
12 (11_0)
CUDA
-
+
OpenCL
2.0
1.1
OpenGL
4.6
4.2
Shader Model
6.3
5.1
Vulkan
1.2.131
N/A