GeForce GTX 660M and HD Graphics 2500 - video card comparison
GeForce GTX 660M
HD Graphics 2500
Architecture
Kepler (2012−2018)
Gen. 7 Ivy Bridge (2011−2012)
GPU code name
N13E-GE
Ivy Bridge GT1
Market segment
Laptop
Laptop
Release date
March 2012
April 2012
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
MXM-B (3.0)
PCIe 1.0 x16
SLI options
+
-
Boost clock speed
950 MHz
1150 MHz
Core clock speed
835 MHz
650 MHz
CUDA cores
384
-
Floating-point performance
729.6 gflops
13.8 gflops
Manufacturing process technology
28 nm
22 nm
Number of transistors
1,270 million
392 million
Pipelines / CUDA cores
384
6
Power consumption (TDP)
50 Watt
unknown
Texture fill rate
30.4 billion/sec
6.900
Memory type
GDDR5
System Shared
Maximum RAM amount
2 GB
System Shared
Memory bus width
128bit
64/128 Bit
Memory clock speed
2000 MHz
System Shared
Memory bandwidth
64.0 GB/s
-
Shared memory
-
+
Display Connectors
No outputs
No outputs
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
11.1 (11_0)
CUDA
+
-
OpenCL
1.1
1.2
OpenGL
4.5
4.0
Shader Model
5.1
5.0
Vulkan
1.1.126
1.1.80
Optimus
+
-