Radeon HD 6450 and Radeon HD 3870 - video card comparison
Passmark - benchmark score Radeon HD 6450 vs Radeon HD 3870
Radeon HD 6450
203
Radeon HD 3870
572
Radeon HD 6450
Radeon HD 3870
Architecture
TeraScale 2 (2009−2015)
TeraScale (2005−2013)
GPU code name
Caicos
RV670
Market segment
Desktop
Desktop
Release date
April 2011
November 2007
Bus support
PCIe 2.0 x8
-
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
1x 6-pin
Boost clock speed
750 MHz
-
Core clock speed
-
777 MHz
Floating-point performance
200.0 gflops
497.3 gflops
Manufacturing process technology
40 nm
55 nm
Number of transistors
370 million
666 million
Pipelines / CUDA cores
160
320
Power consumption (TDP)
30 Watt
106 Watt
Texture fill rate
5.000
12.43
Memory type
GDDR5
GDDR4
Maximum RAM amount
1 GB
512 MB
Memory bus width
64 Bit
256 Bit
Memory clock speed
800 MHz
2252 MHz
Memory bandwidth
25.6 GB/s
72.06 GB/s
Memory bandwidth
8.5-12.8 GB/x (DDR3) or 25.6-28.8 GB/s (GDDR5)
-
Display Connectors
1x DVI, 1x HDMI, 1x VGA
2x DVI, 1x S-Video
Eyefinity
1
-
Number of Eyefinity displays
4
-
HDMI
+
-
DisplayPort support
+
-
DirectX
DirectX® 11
10.1 (10_1)
Mantle
-
-
OpenCL
1.2
N/A
OpenGL
4.4
3.3
Shader Model
5.0
4.1
Vulkan
-
N/A
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-