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GPU Comparison
AMD Radeon R9 M390 Mac Edition vs NVIDIA GeForce 8400M GT
AMD Radeon R9 M390 Mac Edition vs NVIDIA GeForce 8400M GT
VS
AMD Radeon R9 M390 Mac Edition
NVIDIA GeForce 8400M GT
We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M390 Mac Edition and 512MB VRAM GeForce 8400M GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 M390 Mac Edition 's Advantages
Released 8 years late
Larger VRAM bandwidth (174.7GB/s vs 19.20GB/s)
1008 additional rendering cores
NVIDIA GeForce 8400M GT 's Advantages
Lower TDP (14W vs 80W)
Score
Benchmark
FP32 (float)
Radeon R9 M390 Mac Edition
+6665%
1.962 TFLOPS
GeForce 8400M GT
0.029 TFLOPS
Radeon R9 M390 Mac Edition
VS
GeForce 8400M GT
Graphics Card
May 2015
Release Date
May 2007
Crystal System
Generation
GeForce 8M
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 1.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1365 MHz
Memory Clock
600 MHz
Memory
2GB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
128bit
174.7GB/s
Bandwidth
19.20GB/s
Render Config
-
SM Count
2
16
Compute Units
-
1024
Shading Units
16
64
TMUs
8
32
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
32 KB
Theoretical Performance
30.66 GPixel/s
Pixel Rate
1.800 GPixel/s
61.31 GTexel/s
Texture Rate
3.600 GTexel/s
-
FP16 (half)
-
1.962 TFLOPS
FP32 (float)
28.80 GFLOPS
122.6 GFLOPS
FP64 (double)
-
Graphics Processor
Pitcairn
GPU Name
G86
Pitcairn PRO (215-0828062)
GPU Variant
G86-603-A2
GCN 1.0
Architecture
Tesla
TSMC
Foundry
TSMC
28 nm
Process Size
80 nm
2.8 billion
Transistors
0.21 billion
212 mm²
Die Size
127 mm²
Board Design
80W
TDP
14W
-
Suggested PSU
-
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Features
12 (11_1)
DirectX
11.1 (10_0)
4.6
OpenGL
3.3
1.2
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
1.1
5.1
Shader Model
4.0
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