NVIDIA GeForce GT 820M vs ATI Mobility Radeon X1600 Mac Edition
We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 820M and 128MB VRAM Mobility Radeon X1600 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 820M 's Advantages
Released 6 years late
More VRAM (1024GB vs 128GB)
Larger VRAM bandwidth (14.40GB/s vs 12.67GB/s)
96 additional rendering cores
Score
Graphics Card
Nov 2013
Release Date
Nov 2007
GeForce 800M
Generation
M5x
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 1.0 x16
Clock Speeds
-
-
-
-
-
-
900 MHz
Memory Clock
396 MHz
Memory
1024MB
Memory Size
128MB
DDR3
Memory Type
GDDR3
64bit
Memory Bus
128bit
14.40GB/s
Bandwidth
12.67GB/s
Render Config
-
-
-
2
SM Count
-
96
Shading Units
-
16
TMUs
4
8
ROPs
4
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
-
128 KB
L2 Cache
-
-
-
-
Theoretical Performance
3.100 GPixel/s
Pixel Rate
1.592 GPixel/s
12.40 GTexel/s
Texture Rate
1.592 GTexel/s
-
-
-
297.6 GFLOPS
FP32 (float)
-
24.80 GFLOPS
FP64 (double)
-
Board Design
15W
TDP
Unknown
-
-
-
No outputs
Outputs
Portable Device Dependent
-
-
-
Graphics Processor
GF117
GPU Name
M56
N15V-GM
GPU Variant
-
Fermi 2.0
Architecture
Ultra-Threaded SE
TSMC
Foundry
TSMC
28 nm
Process Size
90 nm
0.585 billion
Transistors
0.157 billion
116 mm²
Die Size
150 mm²
Graphics Features
12 (11_0)
DirectX
9.0c (9_3)
4.6
OpenGL
2.1
1.1
OpenCL
N/A
N/A
Vulkan
N/A
2.1
CUDA
-
5.1
Shader Model
3.0
