Radeon HD 6790 and Radeon HD 6770M - video card comparison
Passmark - benchmark score Radeon HD 6790 vs Radeon HD 6770M
Radeon HD 6790
1664
Radeon HD 6770M
993
Radeon HD 6790
Radeon HD 6770M
Architecture
Terascale 2 (2009−2015)
Terascale 2 (2009−2015)
GPU code name
Barts
Whistler-XT
Market segment
Desktop
Laptop
Release date
April 2011
January 2011
Interface
PCIe 2.0 x16
MXM-A (3.0)
Supplementary power connectors
2x 6-pin
-
Core clock speed
840 MHz
675 / 725 MHz
Floating-point performance
1,344.0 gflops
696.0 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
1,700 million
716 million
Pipelines / CUDA cores
800
480
Power consumption (TDP)
150 Watt
35 Watt
Texture fill rate
33.60
17.40
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1050 MHz
800 MHz
Memory bandwidth
134.4 GB/s
57.6 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
11.2 (11_0)
11.2 (11_0)
OpenCL
1.2
1.2
OpenGL
4.4
4.4
Shader Model
5.0
5.0
Vulkan
N/A
N/A