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GeForce GT 640 and GeForce GT 330M - video card comparison


Passmark - benchmark score GeForce GT 640 vs GeForce GT 330M

GeForce GT 640
1209
GeForce GT 330M
220

GeForce GT 640

GeForce GT 330M


Architecture
Kepler (2012−2018)
GT2xx (2009−2012)

GPU code name
GK107
N11P-GE1

Market segment
Desktop
Laptop

Release date
June 2012
January 2010

Bus support
-
PCI-E 2.0

Interface
PCIe 3.0 x16
MXM-A (3.0)

Supplementary power connectors
None
None

SLI options
-
+

Core clock speed
902 MHz
575 MHz

CUDA cores
-
48

Floating-point performance
692.7 gflops
121.44 gflops

Gigaflops
-
182

Manufacturing process technology
28 nm
40 nm

Number of transistors
1,270 million
486 million

Pipelines / CUDA cores
384
48

Power consumption (TDP)
65 Watt
23 Watt

Texture fill rate
28.86
9.200

Memory type
DDR3
GDDR2, GDDR3, DDR3

Maximum RAM amount
2 GB
1 GB

Memory bus width
128 Bit
128 Bit

Memory clock speed
1782 MHz
Up to 1066 (DDR3), Up to 800 (GDDR3) MHz

Memory bandwidth
28.51 GB/s
25.6 GB/s

Shared memory
-
-

Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
HDMIDual Link DVISingle Link DVIVGADisplayPort

Multi monitor support
-
+

HDMI
+
+

Maximum VGA resolution
-
2048x1536

DirectX
12 (11_0)
11.1 (10_1)

CUDA
3.0
+

OpenCL
1.2
1.1

OpenGL
4.6
2.1

Shader Model
5.1
4.1

Vulkan
1.1.126
N/A

Power management
-
8.0