GeForce GTX 660 and GeForce GTX 590 - video card comparison
Passmark - benchmark score GeForce GTX 660 vs GeForce GTX 590
GeForce GTX 660
4119
GeForce GTX 590
3441
GeForce GTX 660
GeForce GTX 590
Architecture
Kepler (2012−2018)
Fermi (2010−2014)
GPU code name
GK106
GF110
Market segment
Desktop
Desktop
Release date
September 2012
March 2011
Bus support
PCI Express 3.0
16x PCI-E 2.0
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
One 6-pin
Two 8-pin
SLI options
+
+
Boost clock speed
1033 MHz
-
Core clock speed
980 MHz
607 MHz
CUDA cores
960
1024
Floating-point performance
1,981 gflops
2x 1,244.2 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
2,540 million
3,000 million
Pipelines / CUDA cores
960
1024
Power consumption (TDP)
140 Watt
365 Watt
Maximum GPU temperature
-
97 °C
Texture fill rate
78.4 billion/sec
77.7 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
3072 MB (1536 MB per GPU)
Memory bus width
192-bit GDDR5
768-bit (384-bit per GPU)
Memory clock speed
6.0 GB/s
1707 MHz
Memory bandwidth
144.2 GB/s
327.7 GB/s
Shared memory
-
-
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
Three Dual Link DVI-IMini DisplayPort
Multi monitor support
4 displays
+
HDMI
+
+
HDCP
+
-
Maximum VGA resolution
2048x1536
2048x1536
Audio input for HDMI
Internal
Internal
DirectX
12 (11_0)
12 (11_0)
CUDA
+
+
OpenCL
1.2
1.1
OpenGL
4.3
4.2
Shader Model
5.1
5.1
Vulkan
1.1.126
N/A
3D Blu-Ray
+
-
3D Gaming
+
-
3D Vision
+
-