GeForce 8400 GS and Radeon HD 6770M Mac Edition - video card comparison
GeForce 8400 GS
Radeon HD 6770M Mac Edition
Architecture
Tesla (2006−2010)
TeraScale 2 (2009−2015)
GPU code name
G86
Whistler
Market segment
Desktop
Desktop
Release date
April 2007
January 2011
Interface
PCIe 1.0 x16
MXM-A (3.0)
Supplementary power connectors
None
-
SLI options
+
-
Core clock speed
459 MHz
725 MHz
Floating-point performance
29.376 gflops
696.0 gflops
Manufacturing process technology
80 nm
40 nm
Number of transistors
210 million
716 million
Pipelines / CUDA cores
16
480
Power consumption (TDP)
40 Watt
35 Watt
Texture fill rate
3.6 billion/sec
17.40
Memory type
DDR2
GDDR5
Maximum RAM amount
256 MB
512 MB
Memory bus width
64 Bit
128 Bit
Memory clock speed
800 MHz
3600 MHz
Memory bandwidth
6.4 GB/s
57.6 GB/s
Standard memory config per GPU
256 MB
-
Display Connectors
1x DVI, 1x VGA, 1x S-Video
No outputs
DirectX
11.1 (10_0)
11.2 (11_0)
CUDA
1.1
-
OpenCL
1.1
1.2
OpenGL
2.1
4.4
Shader Model
4.0
5.0
Vulkan
N/A
N/A