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

Summary

384 Shaders 900MHz	768 Shaders 1.03GHz
2GB DDR328.5GB/s	1GB GDDR5144.2GB/s
Peak·FP32·FP16 691.2 GFLOPS	Peak·FP32·FP16 1.58 TFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 65W	TDP 134W
Power Connectors -	Power Connectors 1x 6-Pin

Highlights

Peak OPS

Peak OPS FP32 FP64 Memory Bandwidth TDP

GeForce GT 640691.2 GFLOPSFP32

x1

GeForce GTX 650 Ti Boost1.58 TFLOPSFP32

x2.29

Show Top Score

Theoretical Performance

Clock Speed900MHz UC·Boost·OC	Clock Speed1032MHz UC·Base·Boost·OC
Peak OPS 691.2 GFLOPSFP32	Peak OPS 1.58 TFLOPSFP32
FP32 691.2 GFLOPS	FP32 1.58 TFLOPS
FP64 28.8 GFLOPS	FP64 66.05 GFLOPS
Pixel Rate 14.4 GPixel/s	Pixel Rate 24.8 GPixel/s
Texture Rate 28.8 GTexel/s	Texture Rate 66 GTexel/s

Core Config

Shaders 384 Shaders	Shaders 768 Shaders
TMUs 32 TMUs	TMUs 64 TMUs
ROPs 16 ROPs	ROPs 24 ROPs
SMs 2 SMs	SMs 4 SMs

Clocks

Base Clock -	Base Clock 980MHz
Boost Clock 900MHz	Boost Clock 1.03GHz

Cache

L2 Cache 256KB shared

L2 Cache 512KB shared

Memory

2GB DDR3	1GB GDDR5
Memory Bus 128-bit	Memory Bus 192-bit
Memory Speed 1.8GT/s	Memory Speed 6GT/s
Memory Bandwidth 28.5GB/s	Memory Bandwidth 144.2GB/s

Power & Thermals

TDP 65W

TDP 134W

Video Output

Multi-Monitor 2

Multi-Monitor 3

Ports

-	1x DisplayPort 1.2
1x HDMI 1.4	1x 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

Encoder Model NVENC 1

Decoder

Decoder Model NVDEC 1

Decoder Model NVDEC 1

Card

Form Factor PCIe Card	Form Factor PCIe Card
PCIe 1.5-Slots	PCIe 2-Slots
Height 111 mm (4.37") Width 145 mm (5.71") Depth 30 mm (1.18")	Height 111 mm (4.37") Width 241 mm (9.49") Depth 38 mm (1.5")
Cooling Open-Air 1x Fan	Cooling Blower 1x Fan
Power Connectors -	Power Connectors 1x 6-Pin

Chip

Manufacturer NVIDIA	Manufacturer NVIDIA
Chip Designer NVIDIA	Chip Designer NVIDIA
Architecture Kepler	Architecture Kepler
Family GeForce 600	Family GeForce 600
Branding	Branding
Codename NVE7	Codename NVE6
Market Segment Desktop	Market Segment Desktop
Release Date Jun 5, 2012	Release Date Mar 26, 2013

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node 28nm	Fabrication Node 28nm
Die Size 118mm²	Die Size 221mm²
Transistor Count 1.3 Billion	Transistor Count 2.5 Billion
Transistor Density 10.76 MTr/mm²	Transistor Density 11.49 MTr/mm²

Images

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Competitors

NVIDIAGeForce GT 640 vs GPU AMDRadeon RX 7400 NVIDIAGeForce GT 640 vs GPU MSIGeForce RTX 3050 LP 6G OC NVIDIAGeForce GT 640 vs GPU GIGABYTEGeForce RTX 3050 OC Low Profile 6G Show 8 more

NVIDIAGeForce GTX 650 Ti Boost vs GPU AMDRadeon RX 7400 NVIDIAGeForce GTX 650 Ti Boost vs GPU MSIGeForce RTX 3050 LP 6G OC NVIDIAGeForce GTX 650 Ti Boost vs GPU GIGABYTEGeForce RTX 3050 OC Low Profile 6G Show 12 more