Radeon HD 7950 Boost and Radeon X1550 - video card comparison
Radeon HD 7950 Boost
Radeon X1550
Architecture
GCN 1.0 (2012−2020)
Ultra-Threaded SE
GPU code name
Tahiti
RV516
Market segment
Desktop
Desktop
Release date
June 2012
2007
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
2x 6-pin
None
Boost clock speed
925 MHz
-
Core clock speed
850 MHz
550 MHz
Floating-point performance
3,315 gflops
-
Manufacturing process technology
28 nm
90 nm
Number of transistors
4,313 million
105 million
Pipelines / CUDA cores
1792
-
Power consumption (TDP)
200 Watt
27 Watt
Texture fill rate
103.6
2.200
Memory type
GDDR5
DDR2
Maximum RAM amount
3 GB
256 MB
Memory bus width
384 Bit
128 Bit
Memory clock speed
5000 MHz
800 MBps
Memory bandwidth
240.0 GB/s
12.8 GB/s
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 1x VGA, 1x S-Video
HDMI
+
-
DirectX
12 (11_1)
9.0c (9_3)
OpenCL
1.2
N/A
OpenGL
4.6
2.1
Shader Model
5.1
3.0
Vulkan
1.2.131
N/A