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GPU Comparison
AMD Radeon 550X Mobile vs AMD Radeon HD 7770M
AMD Radeon 550X Mobile vs AMD Radeon HD 7770M
VS
AMD Radeon 550X Mobile
AMD Radeon HD 7770M
We compared two Mobile platform GPUs: 4GB VRAM Radeon 550X Mobile and 1024MB VRAM Radeon HD 7770M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon 550X Mobile 's Advantages
Released 6 years late
Boost Clock1287MHz
More VRAM (4GB vs 1GB)
128 additional rendering cores
AMD Radeon HD 7770M 's Advantages
Larger VRAM bandwidth (64.00GB/s vs 48.00GB/s)
Lower TDP (32W vs 50W)
Score
Benchmark
FP32 (float)
Radeon 550X Mobile
+138%
1.647 TFLOPS
Radeon HD 7770M
0.691 TFLOPS
Radeon 550X Mobile
VS
Radeon HD 7770M
Graphics Card
Apr 2018
Release Date
Apr 2012
Mobility Radeon
Generation
London
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
PCIe 2.0 x16
Clock Speeds
1100 MHz
Base Clock
-
1287 MHz
Boost Clock
-
1500 MHz
Memory Clock
1000 MHz
Memory
4GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
64bit
Memory Bus
128bit
48.00GB/s
Bandwidth
64.00GB/s
Render Config
-
SM Count
-
10
Compute Units
8
640
Shading Units
512
40
TMUs
32
16
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
Theoretical Performance
20.59 GPixel/s
Pixel Rate
10.80 GPixel/s
51.48 GTexel/s
Texture Rate
21.60 GTexel/s
1.647 TFLOPS
FP16 (half)
-
1.647 TFLOPS
FP32 (float)
691.2 GFLOPS
103.0 GFLOPS
FP64 (double)
43.20 GFLOPS
Graphics Processor
Polaris 23
GPU Name
Chelsea
Polaris 23 MXT
GPU Variant
Chelsea XT
GCN 4.0
Architecture
GCN 1.0
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
28 nm
2.2 billion
Transistors
1.5 billion
103 mm²
Die Size
123 mm²
Board Design
50W
TDP
32W
-
Suggested PSU
-
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Features
12 (12_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.1
OpenCL
1.2
1.2
Vulkan
1.2
-
CUDA
-
6.4
Shader Model
5.1
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