ATI Radeon X550 XT vs AMD Radeon HD 7950
We compared two Desktop platform GPUs: 128MB VRAM Radeon X550 XT and 3GB VRAM Radeon HD 7950 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 7950 's Advantages
Released 5 years late
More VRAM (3GB vs 128GB)
Larger VRAM bandwidth (240.0GB/s vs 9.600GB/s)
1792 additional rendering cores
Score
Graphics Card
Jan 2007
Release Date
Jan 2012
Radeon R300
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 1.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
-
-
-
-
-
300 MHz
Memory Clock
1250 MHz
Memory
128MB
Memory Size
3GB
GDDR3
Memory Type
GDDR5
128bit
Memory Bus
384bit
9.600GB/s
Bandwidth
240.0GB/s
Render Config
-
Compute Units
28
-
-
-
-
Shading Units
1792
4
TMUs
112
4
ROPs
32
-
-
-
-
-
-
-
L1 Cache
16 KB (per CU)
-
L2 Cache
768 KB
-
-
-
Theoretical Performance
1.600 GPixel/s
Pixel Rate
25.60 GPixel/s
1.600 GTexel/s
Texture Rate
89.60 GTexel/s
-
-
-
-
FP32 (float)
2.867 TFLOPS
-
FP64 (double)
716.8 GFLOPS
Board Design
Unknown
TDP
200W
200 W
Suggested PSU
550 W
1x DVI
1x VGA
1x S-Video
Outputs
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
None
Power Connectors
2x 6-pin
Graphics Processor
RV410
GPU Name
Tahiti
-
GPU Variant
Tahiti PRO
(215-0821056)
R400
Architecture
GCN 1.0
TSMC
Foundry
TSMC
110 nm
Process Size
28 nm
0.12 billion
Transistors
4.313 billion
156 mm²
Die Size
352 mm²
Graphics Features
9.0b (9_2)
DirectX
12 (11_1)
2.0
OpenGL
4.6
N/A
OpenCL
1.2
N/A
Vulkan
1.2
-
-
-
-
Shader Model
5.1
