NVIDIA GeForce GT 635 vs NVIDIA GeForce GT 640

NVIDIA GeForce GT 635
NVIDIA GeForce GT 640 $100
384 Shaders
1GB DDR3
967MHz
384 Shaders
2GB DDR3
900MHz
Peak AI Performance
0.74 TOPS
INT32
Peak AI Performance
0.69 TOPS
INT32
FP32
740 GFLOPS
FP32
690 GFLOPS
Form Factor
PCIe Card
1.0-Slots
Form Factor
PCIe Card
1.5-Slots
TDP
35W
TDP
65W

Peak AI Performance

  • 7% faster vs GeForce GT 640
  • 7% slower vs GeForce GT 635
GeForce GT 635 - 0.74 TOPS INT32
x1.07
GeForce GT 640 - 0.69 TOPS INT32
x1

FP32

  • 7% faster vs GeForce GT 640
  • 7% slower vs GeForce GT 635
GeForce GT 635 - 740 GFLOPS FP32
x1.07
GeForce GT 640 - 690 GFLOPS FP32
x1
  • 44% slower vs GeForce GT 640
  • 78% faster vs GeForce GT 635
GeForce GT 635 - 16GB/s
x1
GeForce GT 640 - 28.5GB/s
x1.78
  • 46% lower vs GeForce GT 640
  • 86% higher vs GeForce GT 635
GeForce GT 635 - 35W
x1
GeForce GT 640 - 65W
x1.86
  • 1% faster vs GeForce GT 640
  • 1% slower vs GeForce GT 635
GeForce GT 635 - GB6 OpenCL 3,730
x1.01
GeForce GT 640 - GB6 OpenCL 3,680
x1
GB6 Metal N/A
0%
GB6 Vulkan N/A
0%
Manufacturer
NVIDIA
Manufacturer
NVIDIA
Chip Designer
NVIDIA
Chip Designer
NVIDIA
Architecture
Kepler 2
Architecture
Kepler
Family
GeForce 600
Family
GeForce 600
Codename
NV108
GK208
Codename
NVE7
GK107
Market Segment
Desktop
Market Segment
Desktop
Release Date
2/19/2013
Release Date
6/5/2012
Foundry
TSMC
Foundry
TSMC
Fabrication Node
28nm
Fabrication Node
28nm
Die Size
79 mm²
Die Size
118 mm²
Transistor Count
1 Billion
Transistor Count
1.3 Billion
Transistor Density
12.91M/mm²
Transistor Density
10.76M/mm²
Form
PCIe Card
Form
PCIe Card
Shading Units
384 Shaders
Shading Units
384 Shaders
Texture Mapping Units
16 TMUs
Texture Mapping Units
32 TMUs
Render Output Units
8 ROPs
Render Output Units
16 ROPs
Streaming Multiprocessors
2 SMs
Streaming Multiprocessors
2 SMs
967MHz
900MHz
Peak AI Performance
0.74 TOPS
INT32
Peak AI Performance
0.69 TOPS
INT32
FP32
740 GFLOPS
FP32
690 GFLOPS
FP64
30 GFLOPS
FP64
30 GFLOPS
INT32
0.74 TOPS
INT32
0.69 TOPS
Pixel Fillrate
7.736 GPixel/s
Pixel Fillrate
14.4 GPixel/s
Texture Fillrate
15.472 GTexel/s
Texture Fillrate
28.8 GTexel/s
L1
48KB/SM Tex
16KB/SM
L1
48KB/SM Tex
16KB/SM
L2
256KB Shared
L2
256KB Shared
1GB
DDR3
2GB
DDR3
Bus Width
64Bit
Bus Width
128Bit
Clock
1000MHz
Transfer Rate
2GT/s
Bandwidth
16GB/s
Clock
891MHz
Transfer Rate
1.8GT/s
Bandwidth
28.5GB/s
TDP
35W
TDP
65W
1x VGA
1x DVI-I Dual-Link
1x HDMI 1.4
1x VGA
1x DVI-I Dual-Link
1x HDMI 1.4
Max Resolution
4096x2304
Max Resolution
4096x2304
Max Resolution Refresh Rate
30Hz
Max Resolution Refresh Rate
30Hz
Variable Refresh Rate
G-Sync
FreeSync
Variable Refresh Rate
G-Sync
FreeSync
Display Stream Compression (DSC)
Not Supported
Display Stream Compression (DSC)
Not Supported
Multi Monitor Support
2
Multi Monitor Support
2
No Encoders
-
Model
NVENC 1
-
-
Codec
AVC (H.264)
Model
NVDEC 1
Model
NVDEC 1
Codec
MPEG-1
MPEG-2
MPEG-4
VC-1
AVC (H.264)
Codec
MPEG-1
MPEG-2
MPEG-4
VC-1
AVC (H.264)
Direct X
12
Direct 3D
11_0
Direct X
12
Direct 3D
11_0
OpenGL
4.6
OpenCL
3.0
Vulkan
1.2
OpenGL
4.6
OpenCL
3.0
Vulkan
1.2
Shader Model
6.5
CUDA
3.5
PureVideo HD
VP5
VDPAU
Feature Set D
Shader Model
6.5
CUDA
3.0
PureVideo HD
VP5
VDPAU
Feature Set D
1x Fan
1x Fan
Slots Required
1.0
PCIe Version
3.0
PCIe Lanes
8
Slots Required
1.5
PCIe Version
3.0
PCIe Lanes
16
Height
69 mm (2.72 in)
Width
155 mm (6.1 in)
Depth
20 mm (0.79 in)
Height
111 mm (4.37 in)
Width
145 mm (5.71 in)
Depth
30 mm (1.18 in)
Change Comparison