AMD Radeon HD 6770M vs NVIDIA GeForce GT 645M
AMD Radeon HD 6770M
NVIDIA GeForce GT 645M
|
480 Shaders
1GB GDDR5
725MHz
|
384 Shaders
1GB GDDR5
710MHz
|
|
Peak AI Performance
700 GFLOPS
FP32
|
Peak AI Performance
0.55 TOPS
INT32
|
|
FP32
700 GFLOPS
|
FP32
550 GFLOPS
|
|
Form Factor
Soldered
|
Form Factor
Soldered
|
|
TDP
35W
|
TDP
32W
|
Peak AI Performance
|
|
Radeon HD 6770M - 700 GFLOPS FP32
x1.27
GeForce GT 645M - 0.55 TOPS INT32
x1
FP32
|
|
Radeon HD 6770M - 700 GFLOPS FP32
x1.27
GeForce GT 645M - 550 GFLOPS FP32
x1
|
|
Radeon HD 6770M - 57.6GB/s
x1
GeForce GT 645M - 64GB/s
x1.11
|
|
Radeon HD 6770M - 35W
x1.09
GeForce GT 645M - 32W
x1
|
0%
|
0%
|
|
0%
|
0%
|
|
0%
|
0%
|
|
0%
|
0%
|
|
0%
|
0%
|
|
0%
|
0%
|
|
0%
|
0%
|
|
0%
|
0%
|
|
0%
|
0%
|
|
Manufacturer
AMD
|
Manufacturer
NVIDIA
|
|
Chip Designer
AMD
|
Chip Designer
NVIDIA
|
|
Architecture
TeraScale 2
|
Architecture
Kepler
|
|
Family
Radeon HD 6000
|
Family
GeForce 600
|
|
Codename
Turks
RV930
Variant
Whistler XT
|
Codename
NVE7
GK107
Variant
N13P-GS
|
|
Market Segment
Laptop
|
Market Segment
Laptop
|
|
Release Date
1/4/2011
|
Release Date
10/1/2012
|
|
Foundry
TSMC
|
Foundry
TSMC
|
|
Fabrication Node
40nm
|
Fabrication Node
28nm
|
|
Die Size
118 mm²
|
Die Size
118 mm²
|
|
Transistor Count
716 Million
|
Transistor Count
1.3 Billion
|
|
Transistor Density
6.07M/mm²
|
Transistor Density
10.76M/mm²
|
|
Form
Soldered
|
Form
Soldered
|
|
Shading Units
480 Shaders
|
Shading Units
384 Shaders
|
|
Texture Mapping Units
24 TMUs
|
Texture Mapping Units
32 TMUs
|
|
Render Output Units
8 ROPs
|
Render Output Units
16 ROPs
|
|
-
-
|
Streaming Multiprocessors
2 SMs
|
|
Compute Units
6 CUs
|
-
-
|
|
725MHz
|
710MHz
|
|
Peak AI Performance
700 GFLOPS
FP32
|
Peak AI Performance
0.55 TOPS
INT32
|
|
FP32
700 GFLOPS
|
FP32
550 GFLOPS
|
|
-
-
|
FP64
20 GFLOPS
|
|
-
-
|
INT32
0.55 TOPS
|
|
Pixel Fillrate
5.8 GPixel/s
|
Pixel Fillrate
11.36 GPixel/s
|
|
Texture Fillrate
17.4 GTexel/s
|
Texture Fillrate
22.72 GTexel/s
|
|
L1
-
-
8KB/CU
|
L1
48KB/SM Tex
16KB/SM
-
|
|
L2
256KB Shared
|
L2
256KB Shared
|
|
1GB
GDDR5
|
1GB
GDDR5
|
|
Bus Width
128Bit
|
Bus Width
128Bit
|
|
Clock
900MHz
Transfer Rate
3.6GT/s
Bandwidth
57.6GB/s
|
Clock
1000MHz
Transfer Rate
4GT/s
Bandwidth
64GB/s
|
|
TDP
35W
|
TDP
32W
|
|
Max Resolution
2560x1600
|
Max Resolution
4096x2304
|
|
Max Resolution Refresh Rate
60Hz
|
Max Resolution Refresh Rate
60Hz
|
|
Variable Refresh Rate
-
-
|
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
3
|
|
No Encoders
-
|
Model
NVENC 1
|
|
-
-
|
Codec
AVC (H.264)
|
|
Model
UVD 3.0
|
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
11
Direct 3D
11_0
|
Direct X
12
Direct 3D
11_0
|
|
OpenGL
4.5
OpenCL
1.2
-
-
|
OpenGL
4.6
OpenCL
3.0
Vulkan
1.2
|
|
Shader Model
5.0
-
-
GFX
4
-
-
-
-
|
Shader Model
6.5
CUDA
3.0
-
-
PureVideo HD
VP5
VDPAU
Feature Set D
|
|
Not a Card
|
Not a Card
|
|
PCIe Version
2.1
PCIe Lanes
16
|
PCIe Version
3.0
PCIe Lanes
16
|
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