GeForce GT 330M vs GeForce 820A
We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 330M and 1024MB VRAM GeForce 820A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce GT 330M 's Advantages
Larger VRAM bandwidth (25.60GB/s vs 14.40GB/s)
GeForce 820A 's Advantages
Released 4 years and 2 months late
48 additional rendering cores
Lower TDP (15W vs 23W)
Score
Benchmark
FP32 (float)
GeForce GT 330M
121
GeForce 820A
+146%
298
Graphics Card
Jan 2010
Release Date
Mar 2014
GeForce 300M
Generation
GeForce 800A
Mobile
Type
Mobile
MXM-A (3.0)
Bus Interface
PCIe 2.0 x16
Clock Speeds
800 MHz
Memory Clock
900 MHz
Memory
1024MB
Memory Size
1024MB
GDDR3
Memory Type
DDR3
128bit
Memory Bus
64bit
25.60GB/s
Bandwidth
14.40GB/s
Render Config
6
SM Count
2
48
Shading Units
96
16
TMUs
16
8
ROPs
8
-
L1 Cache
64 KB (per SM)
64 KB
L2 Cache
128 KB
Theoretical Performance
4.600 GPixel/s
Pixel Rate
3.100 GPixel/s
9.200 GTexel/s
Texture Rate
12.40 GTexel/s
121.4 GFLOPS
FP32 (float)
297.6 GFLOPS
-
FP64 (double)
24.80 GFLOPS
Board Design
23W
TDP
15W
No outputs
Outputs
No outputs
Graphics Processor
GT216
GPU Name
GF117
N11P-GE1-A3
GPU Variant
N15V-GM
Tesla 2.0
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
0.486 billion
Transistors
0.585 billion
100 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
