Radeon HD 6870 and Radeon HD 4550 - video card comparison
Passmark - benchmark score Radeon HD 6870 vs Radeon HD 4550
Radeon HD 6870
2285
Radeon HD 4550
242
Radeon HD 6870
Radeon HD 4550
Architecture
Terascale 2 (2009−2015)
TeraScale (2005−2013)
GPU code name
RV940 Barts
RV710
Market segment
Desktop
Desktop
Release date
October 2010
September 2008
Bus support
PCIe 2.0 x16
-
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
None
Boost clock speed
900 MHz
-
Core clock speed
-
600 MHz
Floating-point performance
2,016.0 gflops
96 gflops
Manufacturing process technology
40 nm
55 nm
Number of transistors
1,700 million
242 million
Pipelines / CUDA cores
1120
80
Power consumption (TDP)
151 Watt
25 Watt
Texture fill rate
50.40
4.800
Memory type
GDDR5
DDR2
Maximum RAM amount
1 GB
256 MB
Memory bus width
256 Bit
64 Bit
Memory clock speed
1050 MHz
1310 MHz
Memory bandwidth
134.4 GB/s
10.48 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 1x HDMI, 1x DisplayPort
Eyefinity
1
-
HDMI
+
+
DisplayPort support
-
-
DirectX
DirectX® 11
10.1 (10_1)
Mantle
-
-
OpenCL
1.2
1.1
OpenGL
4.4
3.3
Shader Model
5.0
4.1
Vulkan
-
N/A
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-