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GeForce GTX 680 and GeForce GT 620 - video card comparison


Passmark - benchmark score GeForce GTX 680 vs GeForce GT 620

GeForce GTX 680
5721
GeForce GT 620
388

GeForce GTX 680

GeForce GT 620


Architecture
Kepler (2012−2018)
Fermi (2010−2014)

GPU code name
GK104
GF108

Market segment
Desktop
Desktop

Release date
March 2012
May 2012

Bus support
PCI Express 3.0
PCI Express 2.0

Interface
PCIe 3.0 x16
PCIe 2.0 x16

Supplementary power connectors
Two 6-pin
None

SLI options
+
-

Boost clock speed
1058 MHz
-

Core clock speed
1006 MHz
700 MHz

CUDA cores
1536
96

Floating-point performance
3,090.4 gflops
268.8 gflops

Manufacturing process technology
28 nm
40 nm

Number of transistors
3,540 million
585 million

Pipelines / CUDA cores
1536
96

Power consumption (TDP)
195 Watt
49 Watt

Maximum GPU temperature
-
98 °C

Texture fill rate
128.8 billion/sec
11.2 billion/sec

Memory type
GDDR5
DDR3

Maximum RAM amount
2048 MB
1 GB

Memory bus width
256-bit GDDR5
64 Bit

Memory clock speed
6000 MHz
1.8 GB/s

Memory bandwidth
192.2 GB/s
14.4 GB/s

Shared memory
-
-

Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
Dual Link DVI-I, HDMI, VGA

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
4.2
4.2

Shader Model
5.1
5.1

Vulkan
1.1.126
N/A

3D Blu-Ray
-
+