Radeon HD 7870 XT and Radeon HD 6550A - video card comparison
Passmark - benchmark score Radeon HD 7870 XT vs Radeon HD 6550A
Radeon HD 7870 XT
4603
Radeon HD 6550A
728
Radeon HD 7870 XT
Radeon HD 6550A
Architecture
GCN 1.0 (2012−2020)
TeraScale 2 (2009−2015)
GPU code name
Tahiti
Pinewood
Market segment
Desktop
Desktop
Release date
November 2012
February 2011
Interface
PCIe 3.0 x16
MXM-A (3.0)
Supplementary power connectors
2x 6-pin
-
Boost clock speed
975 MHz
-
Core clock speed
925 MHz
550 MHz
Floating-point performance
2,995 gflops
624.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
4,313 million
627 million
Pipelines / CUDA cores
1536
480
Power consumption (TDP)
185 Watt
35 Watt
Texture fill rate
93.60
13.20
Memory type
GDDR5
GDDR3
Maximum RAM amount
2 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
6000 MHz
1600 MHz
Memory bandwidth
192.0 GB/s
25.6 GB/s
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
HDMI
+
-
DirectX
12 (11_1)
11.2 (11_0)
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.1
5.0
Vulkan
1.2.131
N/A