Radeon HD 8970M and Radeon HD 6870 - video card comparison
Passmark - benchmark score Radeon HD 8970M vs Radeon HD 6870
Radeon HD 8970M
3992
Radeon HD 6870
2285
Radeon HD 8970M
Radeon HD 6870
Architecture
GCN (2011−2017)
Terascale 2 (2009−2015)
GPU code name
Neptune
RV940 Barts
Market segment
Laptop
Desktop
Release date
May 2013
October 2010
Bus support
-
PCIe 2.0 x16
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
-
2x 6-pin
Boost clock speed
900 MHz
900 MHz
Core clock speed
850 MHz
-
Floating-point performance
2,304 gflops
2,016.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
2,800 million
1,700 million
Pipelines / CUDA cores
1280
1120
Power consumption (TDP)
100 Watt
151 Watt
Texture fill rate
72.00
50.40
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
1 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
4800 MHz
1050 MHz
Memory bandwidth
153.6 GB/s
134.4 GB/s
Shared memory
-
-
Display Connectors
No outputs
2x DVI, 1x HDMI, 2x mini-DisplayPort
Eyefinity
-
1
HDMI
-
+
DisplayPort support
-
-
DirectX
12 (11_1)
DirectX® 11
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.1
5.0
Vulkan
1.2.131
-
AppAcceleration
-
-
CrossFire
-
1
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-