GeForce G105M vs GeForce 820A
We compared two Mobile platform GPUs: 256MB VRAM GeForce G105M and 1024MB VRAM GeForce 820A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce G105M 's Advantages
Lower TDP (14W vs 15W)
GeForce 820A 's Advantages
Released 4 years and 8 months late
More VRAM (1024GB vs 256GB)
Larger VRAM bandwidth (14.40GB/s vs 11.20GB/s)
80 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce G105M
34
GeForce 820A
+776%
298
Graphics Card
Jul 2009
Release Date
Mar 2014
GeForce 100M
Generation
GeForce 800A
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
700 MHz
Memory Clock
900 MHz
Memory
256MB
Memory Size
1024MB
GDDR3
Memory Type
DDR3
64bit
Memory Bus
64bit
11.20GB/s
Bandwidth
14.40GB/s
Render Config
2
SM Count
2
16
Shading Units
96
8
TMUs
16
4
ROPs
8
-
L1 Cache
64 KB (per SM)
32 KB
L2 Cache
128 KB
Theoretical Performance
2.000 GPixel/s
Pixel Rate
3.100 GPixel/s
4.000 GTexel/s
Texture Rate
12.40 GTexel/s
34.24 GFLOPS
FP32 (float)
297.6 GFLOPS
-
FP64 (double)
24.80 GFLOPS
Board Design
14W
TDP
15W
No outputs
Outputs
No outputs
Graphics Processor
GT218
GPU Name
GF117
GT218-300-A2
GPU Variant
N15V-GM
Tesla 2.0
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
0.26 billion
Transistors
0.585 billion
57 mm²
Die Size
116 mm²
Graphics Features
11.1 (10_1)
DirectX
12 (11_0)
3.3
OpenGL
4.6
1.1
OpenCL
1.1
N/A
Vulkan
N/A
1.2
CUDA
2.1
4.1
Shader Model
5.1
