NVIDIA GeForce GT 820M vs AMD Radeon R9 M290X
We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 820M and 4GB VRAM Radeon R9 M290X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 820M 's Advantages
Lower TDP (15W vs 100W)
AMD Radeon R9 M290X 's Advantages
Boost Clock900MHz
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (153.6GB/s vs 14.40GB/s)
1184 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GT 820M
0.298 TFLOPS
Radeon R9 M290X
+673%
2.304 TFLOPS
Graphics Card
Nov 2013
Release Date
Jan 2014
GeForce 800M
Generation
Crystal System
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
850 MHz
-
Boost Clock
900 MHz
900 MHz
Memory Clock
1200 MHz
Memory
1024MB
Memory Size
4GB
DDR3
Memory Type
GDDR5
64bit
Memory Bus
256bit
14.40GB/s
Bandwidth
153.6GB/s
Render Config
-
Compute Units
20
2
SM Count
-
96
Shading Units
1280
16
TMUs
80
8
ROPs
32
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
512 KB
-
-
-
Theoretical Performance
3.100 GPixel/s
Pixel Rate
28.80 GPixel/s
12.40 GTexel/s
Texture Rate
72.00 GTexel/s
-
-
-
297.6 GFLOPS
FP32 (float)
2.304 TFLOPS
24.80 GFLOPS
FP64 (double)
144.0 GFLOPS
Board Design
15W
TDP
100W
-
-
-
No outputs
Outputs
No outputs
-
Power Connectors
None
Graphics Processor
GF117
GPU Name
Neptune
N15V-GM
GPU Variant
Neptune XT
(216-0847000)
Fermi 2.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
0.585 billion
Transistors
2.8 billion
116 mm²
Die Size
212 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
1.1
OpenCL
1.2
N/A
Vulkan
1.2
2.1
CUDA
-
5.1
Shader Model
5.1
