NVIDIA GeForce GT 630 GF108 2GB vs NVIDIA GeForce GTX 645 Full Specs

Summary

96 Shaders 700MHz	576 Shaders 889MHz
2GB DDR325.6GB/s	1GB GDDR564GB/s
Peak·FP32·FP16 311 GFLOPS	Peak·FP32·FP16 1.02 TFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 49W	TDP 64W

Highlights

Peak OPS

Peak OPS FP32 FP64 Memory Bandwidth TDP

GeForce GT 630 GF108 2GB311 GFLOPSFP32

x1

GeForce GTX 6451.02 TFLOPSFP32

x3.29

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Theoretical Performance

Clock Speed700MHz UC·Boost·OC	Clock Speed889MHz UC·Base·Boost·OC
Peak OPS 311 GFLOPSFP32	Peak OPS 1.02 TFLOPSFP32
FP32 311 GFLOPS	FP32 1.02 TFLOPS
FP64 25.92 GFLOPS	FP64 42.67 GFLOPS
Pixel Rate 6.5 GPixel/s	Pixel Rate 14.2 GPixel/s
Texture Rate 25.9 GTexel/s	Texture Rate 42.7 GTexel/s

Core Config

Shaders 96 Shaders	Shaders 576 Shaders
TMUs 16 TMUs	TMUs 48 TMUs
ROPs 4 ROPs	ROPs 16 ROPs
SMs 2 SMs	SMs 3 SMs

Clocks

Base Clock -	Base Clock 824MHz
Boost Clock 700MHz	Boost Clock 889MHz
Shader Clock 1.62GHz	Shader Clock -

Cache

L2 Cache 256KB shared

L2 Cache 512KB shared

Memory

2GB DDR3	1GB GDDR5
Memory Bus 128-bit	Memory Bus 128-bit
Memory Speed 1.6GT/s	Memory Speed 4GT/s
Memory Bandwidth 25.6GB/s	Memory Bandwidth 64GB/s

Power & Thermals

TDP 49W

TDP 64W

Video Output

Multi-Monitor 2

Multi-Monitor 2

Ports

-	1x DisplayPort 1.2
-	1x HDMI 1.4
1x HDMI 1.3	-
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-Slots	PCIe 1-Slots
Height 111 mm (4.37") Width 145 mm (5.71") Depth 20 mm (0.79")	Height 111 mm (4.37") Width 168 mm (6.61") Depth 20 mm (0.79")
Cooling Open-Air 1x Fan	Cooling Blower 1x Fan

Chip

Manufacturer NVIDIA	Manufacturer NVIDIA
Chip Designer NVIDIA	Chip Designer NVIDIA
Architecture Fermi	Architecture Kepler
Family GeForce 600	Family GeForce 600
Branding	Branding
Codename NVC1	Codename NVE6
Market Segment Desktop	Market Segment Desktop
Release Date May 15, 2012	Release Date Apr 22, 2013

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node 40nm	Fabrication Node 28nm
Die Size 116mm²	Die Size 221mm²
Transistor Count 585 Million	Transistor Count 2.5 Billion
Transistor Density 5.04 MTr/mm²	Transistor Density 11.49 MTr/mm²

Images

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Competitors

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NVIDIAGeForce GTX 645 vs GPU AMDRadeon RX 7400 NVIDIAGeForce GTX 645 vs GPU MSIGeForce RTX 3050 LP 6G OC NVIDIAGeForce GTX 645 vs GPU GIGABYTEGeForce RTX 3050 OC Low Profile 6G Show 5 more