NVIDIA GeForce GT 820M vs AMD Radeon 540X Mobile
We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 820M and 2GB VRAM Radeon 540X 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 540X Mobile 's Advantages
Released 5 years and 3 months late
Boost Clock1095MHz
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (32.00GB/s vs 14.40GB/s)
416 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GT 820M
0.298 TFLOPS
Radeon 540X Mobile
+276%
1.121 TFLOPS
Graphics Card
Nov 2013
Release Date
Feb 2019
GeForce 800M
Generation
Mobility Radeon
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
980 MHz
-
Boost Clock
1095 MHz
900 MHz
Memory Clock
1000 MHz
Memory
1024MB
Memory Size
2GB
DDR3
Memory Type
GDDR5
64bit
Memory Bus
64bit
14.40GB/s
Bandwidth
32.00GB/s
Render Config
-
Compute Units
8
2
SM Count
-
96
Shading Units
512
16
TMUs
32
8
ROPs
16
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
512 KB
-
-
-
Theoretical Performance
3.100 GPixel/s
Pixel Rate
17.52 GPixel/s
12.40 GTexel/s
Texture Rate
35.04 GTexel/s
-
FP16 (half)
1121 GFLOPS
297.6 GFLOPS
FP32 (float)
1121 GFLOPS
24.80 GFLOPS
FP64 (double)
70.08 GFLOPS
Board Design
15W
TDP
50W
-
-
-
No outputs
Outputs
No outputs
-
Power Connectors
None
Graphics Processor
GF117
GPU Name
Lexa
N15V-GM
GPU Variant
Lexa PRO
(215-0904018)
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
