NVIDIA GeForce GT 820M vs AMD Radeon 550X Mobile
We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 820M and 4GB VRAM Radeon 550X Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 820M 's Advantages
Lower TDP (15W vs 50W)
AMD Radeon 550X Mobile 's Advantages
Released 4 years and 5 months late
Boost Clock1287MHz
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (48.00GB/s vs 14.40GB/s)
544 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GT 820M
0.298 TFLOPS
Radeon 550X Mobile
+452%
1.647 TFLOPS
Graphics Card
Nov 2013
Release Date
Apr 2018
GeForce 800M
Generation
Mobility Radeon
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
1100 MHz
-
Boost Clock
1287 MHz
900 MHz
Memory Clock
1500 MHz
Memory
1024MB
Memory Size
4GB
DDR3
Memory Type
GDDR5
64bit
Memory Bus
64bit
14.40GB/s
Bandwidth
48.00GB/s
Render Config
-
Compute Units
10
2
SM Count
-
96
Shading Units
640
16
TMUs
40
8
ROPs
16
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
3.100 GPixel/s
Pixel Rate
20.59 GPixel/s
12.40 GTexel/s
Texture Rate
51.48 GTexel/s
-
FP16 (half)
1.647 TFLOPS
297.6 GFLOPS
FP32 (float)
1.647 TFLOPS
24.80 GFLOPS
FP64 (double)
103.0 GFLOPS
Board Design
15W
TDP
50W
-
-
-
No outputs
Outputs
No outputs
-
Power Connectors
None
Graphics Processor
GF117
GPU Name
Polaris 23
N15V-GM
GPU Variant
Polaris 23 MXT
Fermi 2.0
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
28 nm
Process Size
14 nm
0.585 billion
Transistors
2.2 billion
116 mm²
Die Size
103 mm²
Graphics Features
12 (11_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
1.1
OpenCL
2.1
N/A
Vulkan
1.2
2.1
CUDA
-
5.1
Shader Model
6.4
