GPUs

NVIDIA GeForce 605 vs NVIDIA GeForce GT 640 Full Specs

48 Shaders
523MHz
384 Shaders
900MHz
1GB DDR314.4GB/s
2GB DDR328.5GB/s
··
100.4 GFLOPS
··
691.2 GFLOPS
Form Factor
PCIe Card
Form Factor
PCIe Card
TDP
25W
TDP
65W

GeForce 605GeForce 605100.4 GFLOPSFP32
x1
GeForce GT 640GeForce GT 640691.2 GFLOPSFP32
x6.88

Clock Speed
··
Clock Speed
··
Peak OPS
100.4 GFLOPSFP32
Peak OPS
691.2 GFLOPSFP32
FP32
100.4 GFLOPS
FP32
691.2 GFLOPS
FP64
8.37 GFLOPS
FP64
28.8 GFLOPS
Pixel Rate
4.2 GPixel/s
Pixel Rate
14.4 GPixel/s
Texture Rate
8.4 GTexel/s
Texture Rate
28.8 GTexel/s

Shaders
48 Shaders
Shaders
384 Shaders
TMUs
8 TMUs
TMUs
32 TMUs
ROPs
4 ROPs
ROPs
16 ROPs
SM
1 SM
SMs
2 SMs

Boost Clock
523MHz
Boost Clock
900MHz
Shader Clock
1.05GHz
Shader Clock
-

L2 Cache
128KB shared
L2 Cache
256KB shared

1GB DDR3
2GB DDR3
Memory Bus
64-bit
Memory Bus
128-bit
Memory Speed
1.8GT/s
Memory Speed
1.8GT/s
Memory Bandwidth
14.4GB/s
Memory Bandwidth
28.5GB/s
ECC
No
ECC
No

TDP
25W
TDP
65W

Multi-Monitor
2
Multi-Monitor
2

-
1x HDMI 1.4
1x HDMI 1.3
-
1x DVI-I Dual-Link
1x DVI-I Dual-Link
1x VGA
1x VGA

-
Encoder Model
NVENC 1

Decoder Model
VP5
Decoder Model
NVDEC 1

Form Factor
PCIe Card
Form Factor
PCIe Card
PCIe
1-Slots
PCIe
1.5-Slots
Height
69 mm (2.72")
Width
145 mm (5.71")
Depth
20 mm (0.79")
Height
111 mm (4.37")
Width
145 mm (5.71")
Depth
30 mm (1.18")
Cooling
Open-Air
1x Fan
Cooling
Open-Air
1x Fan

Manufacturer
Manufacturer
Chip Designer
Chip Designer
Architecture
Architecture
Family
Family
Branding
GeForce 2006 branding
Branding
GeForce 2006 branding
Codename
NVD9
Codename
NVE7
Market Segment
Desktop
Market Segment
Desktop
Release Date
Apr 3, 2012
Release Date
Jun 5, 2012

Foundry
TSMC
Foundry
TSMC
Fabrication Node
40nm
Fabrication Node
28nm
Die Size
79mm²
Die Size
118mm²
Transistor Count
292 Million
Transistor Count
1.3 Billion
Transistor Density
3.7 MTr/mm²
Transistor Density
10.76 MTr/mm²

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