GeForce GTX 690 and GeForce GT 640M - video card comparison
Passmark - benchmark score GeForce GTX 690 vs GeForce GT 640M
GeForce GTX 690
5738
GeForce GT 640M
946
GeForce GTX 690
GeForce GT 640M
Architecture
Kepler (2012−2018)
Kepler (2012−2018)
GPU code name
GK104
N13P-GS
Market segment
Desktop
Laptop
Release date
May 2012
March 2012
Bus support
PCI Express 3.0
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
Two 8-pin
-
SLI options
+
-
Boost clock speed
1019 MHz
645 MHz
Core clock speed
915 MHz
Up to 625 MHz
CUDA cores
3072
384
Floating-point performance
2x 3,130 gflops
480.0 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
3,540 million
1,270 million
Pipelines / CUDA cores
1536
384
Power consumption (TDP)
300 Watt
32 Watt
Texture fill rate
234 billion/sec
Up to 20.0 billion/sec
Memory type
GDDR5
DDR3\GDDR5
Maximum RAM amount
4 GB (4 GB per GPU) GDDR5
2 GB
Memory bus width
512-bit (256-bit per GPU)
128bit
Memory clock speed
6008 MHz
1800 - 4000 MHz
Memory bandwidth
384 GB/s
Up to 64.0 GB/s
Shared memory
-
-
Display Connectors
Two Dual Link DVI-I. One Dual link DVI-D. One Mini-Displayport 1.2
No outputs
Multi monitor support
4 displays
-
HDMI
Yes (via dongle)
+
HDCP
+
+
Maximum VGA resolution
2048x1536
Up to 2048x1536
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
12 API
CUDA
+
+
OpenCL
1.2
1.1
OpenGL
4.2
4.5
Shader Model
5.1
5.1
Vulkan
1.1.126
1.1.126
3D Blu-Ray
+
+
3D Gaming
+
-
3D Vision Live
+
-
Optimus
-
+