NVIDIA GeForce GT 640M vs AMD Radeon HD 8630M

NVIDIA GeForce GT 640M
AMD Radeon HD 8630M
384 Shaders
1GB GDDR5
625MHz
384 Shaders
1GB DDR3
700MHz
Peak AI Performance
0.48 TOPS
INT32
Peak AI Performance
540 GFLOPS
FP32
FP32
480 GFLOPS
FP32
540 GFLOPS
Form Factor
Soldered
Form Factor
Soldered
TDP
32W
TDP
25W

Peak AI Performance

  • 11% slower vs Radeon HD 8630M
  • 13% faster vs GeForce GT 640M
GeForce GT 640M - 0.48 TOPS INT32
x1
Radeon HD 8630M - 540 GFLOPS FP32
x1.13

FP32

  • 11% slower vs Radeon HD 8630M
  • 13% faster vs GeForce GT 640M
GeForce GT 640M - 480 GFLOPS FP32
x1
Radeon HD 8630M - 540 GFLOPS FP32
x1.13
  • 4.44x faster vs Radeon HD 8630M
  • 78% slower vs GeForce GT 640M
GeForce GT 640M - 64GB/s
x4.44
Radeon HD 8630M - 14.4GB/s
x1
  • 28% higher vs Radeon HD 8630M
  • 22% lower vs GeForce GT 640M
GeForce GT 640M - 32W
x1.28
Radeon HD 8630M - 25W
x1
GB6 Metal N/A
0%
GB6 Vulkan N/A
0%
Manufacturer
NVIDIA
Manufacturer
AMD
Chip Designer
NVIDIA
Chip Designer
AMD
Architecture
Kepler
Architecture
GCN 1
Family
GeForce 600
Family
Radeon HD 8000
Codename
NVE7
GK107
Variant
N13P-GS
Codename
Hainan
-
Variant
Sun LE
Market Segment
Laptop
Market Segment
Laptop
Release Date
3/22/2012
Release Date
1/8/2013
Foundry
TSMC
Foundry
TSMC
Fabrication Node
28nm
Fabrication Node
28nm
Die Size
118 mm²
Die Size
56 mm²
Transistor Count
1.3 Billion
Transistor Count
690 Million
Transistor Density
10.76M/mm²
Transistor Density
12.32M/mm²
Form
Soldered
Form
Soldered
Shading Units
384 Shaders
Shading Units
384 Shaders
Texture Mapping Units
32 TMUs
Texture Mapping Units
24 TMUs
Render Output Units
16 ROPs
Render Output Units
8 ROPs
Streaming Multiprocessors
2 SMs
-
-
-
-
Compute Units
6 CUs
-
625MHz
650MHz Base
700MHz
Peak AI Performance
0.48 TOPS
INT32
Peak AI Performance
540 GFLOPS
FP32
FP32
480 GFLOPS
FP32
540 GFLOPS
FP64
20 GFLOPS
FP64
30 GFLOPS
INT32
0.48 TOPS
-
-
Pixel Fillrate
10 GPixel/s
Pixel Fillrate
5.6 GPixel/s
Texture Fillrate
20 GTexel/s
Texture Fillrate
16.8 GTexel/s
L1
48KB/SM Tex
16KB/SM
-
L1
-
-
16KB/CU
L2
256KB Shared
L2
128KB Shared
1GB
GDDR5
1GB
DDR3
Bus Width
128Bit
Bus Width
64Bit
Clock
1000MHz
Transfer Rate
4GT/s
Bandwidth
64GB/s
Clock
900MHz
Transfer Rate
1.8GT/s
Bandwidth
14.4GB/s
TDP
32W
TDP
25W
Max Resolution
4096x2304
Max Resolution
4096x2160
Max Resolution Refresh Rate
60Hz
Max Resolution Refresh Rate
60Hz
Variable Refresh Rate
G-Sync
FreeSync
Variable Refresh Rate
-
-
Display Stream Compression (DSC)
Not Supported
Display Stream Compression (DSC)
Not Supported
Multi Monitor Support
3
Multi Monitor Support
3
-
-
Content Protection
HDCP 1.4
Model
NVENC 1
No Encoders
-
Codec
AVC (H.264)
-
-
Model
NVDEC 1
No Decoders
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_1
OpenGL
4.6
OpenCL
3.0
Vulkan
1.2
OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
Shader Model
6.5
CUDA
3.0
-
-
PureVideo HD
VP5
VDPAU
Feature Set D
Shader Model
6.5
-
-
GFX
6
-
-
-
-
Not a Card
Not a Card
PCIe Version
3.0
PCIe Lanes
16
PCIe Version
3.0
PCIe Lanes
8
Change Comparison