GeForce GTX 460 and GeForce GT 640M Mac Edition - video card comparison
GeForce GTX 460
GeForce GT 640M Mac Edition
Architecture
Fermi (2010−2014)
Kepler (2012−2018)
GPU code name
GF104
GK107
Market segment
Desktop
Desktop
Release date
July 2010
February 2013
Bus support
16x PCI-E 2.0
-
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
6-pin & 6-pin
-
SLI options
+
-
Core clock speed
675 MHz
745 MHz
Floating-point performance
907.2 gflops
572.2 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
1,950 million
1,270 million
Pipelines / CUDA cores
336
384
Power consumption (TDP)
160 Watt
32 Watt
Texture fill rate
37.80
23.84
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
512 MB
Memory bus width
192 Bit
64 Bit
Memory clock speed
3600 MHz
5000 MHz
Memory bandwidth
86.4 GB/s
40 GB/s
Display Connectors
Two Dual Link DVI, Mini HDMI
No outputs
Multi monitor support
+
-
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
12 (11_0)
CUDA
+
3.0
OpenCL
1.1
1.2
OpenGL
4.1
4.6
Shader Model
5.1
5.1
Vulkan
N/A
1.1.126