Radeon HD 6870 and Radeon HD 7450A - video card comparison
Passmark - benchmark score Radeon HD 6870 vs Radeon HD 7450A
Radeon HD 6870
2285
Radeon HD 7450A
297
Radeon HD 6870
Radeon HD 7450A
Architecture
Terascale 2 (2009−2015)
TeraScale 2 (2009−2015)
GPU code name
RV940 Barts
Caicos
Market segment
Desktop
Desktop
Release date
October 2010
January 2012
Bus support
PCIe 2.0 x16
-
Interface
PCIe 2.0 x16
MXM-A (3.0)
Supplementary power connectors
2x 6-pin
-
Boost clock speed
900 MHz
-
Core clock speed
-
625 MHz
Floating-point performance
2,016.0 gflops
200.0 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
1,700 million
370 million
Pipelines / CUDA cores
1120
160
Power consumption (TDP)
151 Watt
25 Watt
Texture fill rate
50.40
5.000
Memory type
GDDR5
GDDR3
Maximum RAM amount
1 GB
512 MB
Memory bus width
256 Bit
64 Bit
Memory clock speed
1050 MHz
1600 MHz
Memory bandwidth
134.4 GB/s
12.8 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
1
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 11
11.2 (11_0)
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
-
-