NVIDIA GeForce GT 820M vs NVIDIA GeForce 9800M GS
We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 820M and 512MB VRAM GeForce 9800M GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 820M 's Advantages
Released 5 years late
More VRAM (1024GB vs 512GB)
32 additional rendering cores
Lower TDP (15W vs 60W)
NVIDIA GeForce 9800M GS 's Advantages
Larger VRAM bandwidth (51.20GB/s vs 14.40GB/s)
Score
Benchmark
FP32 (float)
GeForce GT 820M
+75%
0.298 TFLOPS
GeForce 9800M GS
0.17 TFLOPS
Graphics Card
Nov 2013
Release Date
Nov 2008
GeForce 800M
Generation
GeForce 9M
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
900 MHz
Memory Clock
800 MHz
Memory
1024MB
Memory Size
512MB
DDR3
Memory Type
GDDR3
64bit
Memory Bus
256bit
14.40GB/s
Bandwidth
51.20GB/s
Render Config
-
-
-
2
SM Count
8
96
Shading Units
64
16
TMUs
32
8
ROPs
16
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
-
128 KB
L2 Cache
64 KB
-
-
-
Theoretical Performance
3.100 GPixel/s
Pixel Rate
8.480 GPixel/s
12.40 GTexel/s
Texture Rate
16.96 GTexel/s
-
-
-
297.6 GFLOPS
FP32 (float)
169.6 GFLOPS
24.80 GFLOPS
FP64 (double)
-
Board Design
15W
TDP
60W
-
-
-
No outputs
Outputs
No outputs
-
Power Connectors
None
Graphics Processor
GF117
GPU Name
G94
N15V-GM
GPU Variant
NB9E-GS1
Fermi 2.0
Architecture
Tesla
TSMC
Foundry
TSMC
28 nm
Process Size
65 nm
0.585 billion
Transistors
0.505 billion
116 mm²
Die Size
240 mm²
Graphics Features
12 (11_0)
DirectX
11.1 (10_0)
4.6
OpenGL
3.3
1.1
OpenCL
1.1
N/A
Vulkan
N/A
2.1
CUDA
1.1
5.1
Shader Model
4.0
