NVIDIA GeForce GT 820M vs NVIDIA GeForce 305M
We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 820M and 512MB VRAM GeForce 305M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 820M 's Advantages
Released 3 years and 10 months late
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (14.40GB/s vs 11.20GB/s)
80 additional rendering cores
NVIDIA GeForce 305M 's Advantages
Lower TDP (14W vs 15W)
Score
Benchmark
FP32 (float)
GeForce GT 820M
+705%
0.298 TFLOPS
GeForce 305M
0.037 TFLOPS
Graphics Card
Nov 2013
Release Date
Jan 2010
GeForce 800M
Generation
GeForce 300M
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
900 MHz
Memory Clock
700 MHz
Memory
1024MB
Memory Size
512MB
DDR3
Memory Type
GDDR3
64bit
Memory Bus
64bit
14.40GB/s
Bandwidth
11.20GB/s
Render Config
-
-
-
2
SM Count
2
96
Shading Units
16
16
TMUs
8
8
ROPs
4
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
-
128 KB
L2 Cache
32 KB
-
-
-
Theoretical Performance
3.100 GPixel/s
Pixel Rate
2.100 GPixel/s
12.40 GTexel/s
Texture Rate
4.200 GTexel/s
-
-
-
297.6 GFLOPS
FP32 (float)
36.80 GFLOPS
24.80 GFLOPS
FP64 (double)
-
Board Design
15W
TDP
14W
-
-
-
No outputs
Outputs
No outputs
-
-
-
Graphics Processor
GF117
GPU Name
GT218
N15V-GM
GPU Variant
N11M-LP1
Fermi 2.0
Architecture
Tesla 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
0.585 billion
Transistors
0.26 billion
116 mm²
Die Size
57 mm²
Graphics Features
12 (11_0)
DirectX
11.1 (10_1)
4.6
OpenGL
3.3
1.1
OpenCL
1.1
N/A
Vulkan
N/A
2.1
CUDA
1.2
5.1
Shader Model
4.1
