GPUs

NVIDIA GeForce GT 625 vs NVIDIA GeForce GTX 645 Full Specs

48 Shaders
810MHz
576 Shaders
889MHz
524MB DDR314.4GB/s
1GB GDDR564GB/s
··
155.5 GFLOPS
··
1.02 TFLOPS
Form Factor
PCIe Card
Form Factor
PCIe Card
TDP
30W
TDP
64W

GeForce GT 625GeForce GT 625155.5 GFLOPSFP32
x1
GeForce GTX 645GeForce GTX 6451.02 TFLOPSFP32
x6.59

Clock Speed
··
Clock Speed
···
Peak OPS
155.5 GFLOPSFP32
Peak OPS
1.02 TFLOPSFP32
FP32
155.5 GFLOPS
FP32
1.02 TFLOPS
FP64
12.96 GFLOPS
FP64
42.67 GFLOPS
Pixel Rate
6.5 GPixel/s
Pixel Rate
14.2 GPixel/s
Texture Rate
13 GTexel/s
Texture Rate
42.7 GTexel/s

Shaders
48 Shaders
Shaders
576 Shaders
TMUs
8 TMUs
TMUs
48 TMUs
ROPs
4 ROPs
ROPs
16 ROPs
SM
1 SM
SMs
3 SMs

Base Clock
-
Base Clock
824MHz
Boost Clock
810MHz
Boost Clock
889MHz
Shader Clock
1.62GHz
Shader Clock
-

L2 Cache
128KB shared
L2 Cache
512KB shared

524MB DDR3
1GB GDDR5
Memory Bus
64-bit
Memory Bus
128-bit
Memory Speed
1.8GT/s
Memory Speed
4GT/s
Memory Bandwidth
14.4GB/s
Memory Bandwidth
64GB/s

TDP
30W
TDP
64W

Multi-Monitor
2
Multi-Monitor
2

-
1x DisplayPort 1.2
-
1x HDMI 1.4
1x HDMI 1.3
-
1x DVI-I Dual-Link
1x DVI-I Dual-Link

-
Encoder Model
NVENC 1

Decoder Model
VP5
Decoder Model
NVDEC 1

Form Factor
PCIe Card
Form Factor
PCIe Card
PCIe
1-Slots
PCIe
1-Slots
Height
69 mm (2.72")
Width
155 mm (6.1")
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

Manufacturer
Manufacturer
Chip Designer
Chip Designer
Architecture
Architecture
Family
Family
Branding
GeForce 2006 branding
Branding
GeForce 2006 branding
Codename
NVD9
Codename
NVE6
Market Segment
Desktop
Market Segment
Desktop
Release Date
Feb 19, 2013
Release Date
Apr 22, 2013

Foundry
TSMC
Foundry
TSMC
Fabrication Node
40nm
Fabrication Node
28nm
Die Size
79mm²
Die Size
221mm²
Transistor Count
292 Million
Transistor Count
2.5 Billion
Transistor Density
3.7 MTr/mm²
Transistor Density
11.49 MTr/mm²

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