Radeon HD 6970M and Radeon HD 6450 - video card comparison
Passmark - benchmark score Radeon HD 6970M vs Radeon HD 6450
Radeon HD 6970M
2338
Radeon HD 6450
203
Radeon HD 6970M
Radeon HD 6450
Architecture
Terascale 2 (2009−2015)
TeraScale 2 (2009−2015)
GPU code name
Blackcomb XT
Caicos
Market segment
Laptop
Desktop
Release date
January 2011
April 2011
Bus support
-
PCIe 2.0 x8
Interface
MXM-B (3.0)
PCIe 2.0 x16
Supplementary power connectors
None
None
Boost clock speed
-
750 MHz
Core clock speed
680 MHz
-
Floating-point performance
1,305.6 gflops
200.0 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
1,700 million
370 million
Pipelines / CUDA cores
960
160
Power consumption (TDP)
75-100 Watt
30 Watt
Texture fill rate
32.64
5.000
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
900 MHz
800 MHz
Memory bandwidth
115.2 GB/s
25.6 GB/s
Memory bandwidth
-
8.5-12.8 GB/x (DDR3) or 25.6-28.8 GB/s (GDDR5)
Shared memory
-
-
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x VGA
Eyefinity
-
1
Number of Eyefinity displays
-
4
HDMI
-
+
DisplayPort support
-
+
DirectX
11.2 (11_0)
DirectX® 11
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.4
4.4
Shader Model
5.0
5.0
Vulkan
N/A
-
AppAcceleration
-
-
CrossFire
-
1
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-