NVIDIA GeForce GT 640 GF116 vs NVIDIA GeForce GTX 650 Ti Full Specs

Summary

144 Shaders 720MHz	768 Shaders 928MHz
2GB DDR342.8GB/s	1GB GDDR586.4GB/s
Peak·FP32·FP16 414.7 GFLOPS	Peak·FP32·FP16 1.43 TFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 75W	TDP 110W
Power Connectors -	Power Connectors 1x 6-Pin

Highlights

Peak OPS

Peak OPS FP32 FP64 Memory Bandwidth TDP

GeForce GT 640 GF116414.7 GFLOPSFP32

x1

GeForce GTX 650 Ti1.43 TFLOPSFP32

x3.44

Show Top Score

Theoretical Performance

Clock Speed720MHz UC·Boost·OC	Clock Speed928MHz UC·Boost·OC
Peak OPS 414.7 GFLOPSFP32	Peak OPS 1.43 TFLOPSFP32
FP32 414.7 GFLOPS	FP32 1.43 TFLOPS
FP64 34.56 GFLOPS	FP64 59.39 GFLOPS
Pixel Rate 34.6 GPixel/s	Pixel Rate 14.8 GPixel/s
Texture Rate 34.6 GTexel/s	Texture Rate 59.4 GTexel/s

Core Config

Shaders 144 Shaders	Shaders 768 Shaders
TMUs 24 TMUs	TMUs 64 TMUs
ROPs 24 ROPs	ROPs 16 ROPs
SMs 3 SMs	SMs 4 SMs

Clocks

Boost Clock 720MHz	Boost Clock 928MHz
Shader Clock 1.44GHz	Shader Clock -

Cache

L2 Cache 384KB shared

L2 Cache 512KB shared

Memory

2GB DDR3	1GB GDDR5
Memory Bus 192-bit	Memory Bus 128-bit
Memory Speed 1.8GT/s	Memory Speed 5.4GT/s
Memory Bandwidth 42.8GB/s	Memory Bandwidth 86.4GB/s
ECC No	ECC No

Power & Thermals

TDP 75W

TDP 110W

Video Output

Multi-Monitor 2

Multi-Monitor 2

Ports

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

Encoder

-	Encoder Model NVENC 1

Decoder

Decoder Model VP4

Decoder Model NVDEC 1

Card

Form Factor PCIe Card	Form Factor PCIe Card
PCIe 1.5-Slots	PCIe 1.5-Slots
Height 111 mm (4.37") Width 145 mm (5.71") Depth 30 mm (1.18")	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
Power Connectors -	Power Connectors 1x 6-Pin

Chip

Manufacturer NVIDIA	Manufacturer NVIDIA
Chip Designer NVIDIA	Chip Designer NVIDIA
Architecture Fermi	Architecture Kepler
Family GeForce 600	Family GeForce 600
Branding	Branding
Codename NVCF	Codename NVE6
Market Segment Desktop	Market Segment Desktop
Release Date Apr 24, 2012	Release Date Oct 9, 2012

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node 40nm	Fabrication Node 28nm
Die Size 238mm²	Die Size 221mm²
Transistor Count 1.2 Billion	Transistor Count 2.5 Billion
Transistor Density 4.92 MTr/mm²	Transistor Density 11.49 MTr/mm²

Images

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Competitors

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