Intel Iris Xe MAX Graphics vs AMD Radeon R9 M390 Mac Edition
We compared two Mobile platform GPUs: 4GB VRAM Iris Xe MAX Graphics and 2GB VRAM Radeon R9 M390 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Intel Iris Xe MAX Graphics 's Advantages
Released 5 years and 5 months late
Boost Clock1650MHz
More VRAM (4GB vs 2GB)
Lower TDP (25W vs 80W)
AMD Radeon R9 M390 Mac Edition 's Advantages
Larger VRAM bandwidth (174.7GB/s vs 68.26GB/s)
256 additional rendering cores
Score
Benchmark
FP32 (float)
Iris Xe MAX Graphics
+29%
2.534 TFLOPS
Radeon R9 M390 Mac Edition
1.962 TFLOPS
Graphics Card
Oct 2020
Release Date
May 2015
HD Graphics-M
Generation
Crystal System
Mobile
Type
Mobile
PCIe 4.0 x8
Bus Interface
PCIe 3.0 x16
Clock Speeds
300 MHz
Base Clock
-
1650 MHz
Boost Clock
-
2133 MHz
Memory Clock
1365 MHz
Memory
4GB
Memory Size
2GB
LPDDR4X
Memory Type
GDDR5
128bit
Memory Bus
256bit
68.26GB/s
Bandwidth
174.7GB/s
Render Config
-
Compute Units
16
-
-
-
768
Shading Units
1024
48
TMUs
64
24
ROPs
32
-
-
-
-
-
-
-
L1 Cache
16 KB (per CU)
1024 KB
L2 Cache
512 KB
16 MB
L3 Cache
-
Theoretical Performance
39.60 GPixel/s
Pixel Rate
30.66 GPixel/s
79.20 GTexel/s
Texture Rate
61.31 GTexel/s
5.069 TFLOPS
FP16 (half)
-
2.534 TFLOPS
FP32 (float)
1.962 TFLOPS
633.6 GFLOPS
FP64 (double)
122.6 GFLOPS
Board Design
25W
TDP
80W
-
-
-
No outputs
Outputs
No outputs
-
Power Connectors
None
Graphics Processor
DG1
GPU Name
Pitcairn
-
GPU Variant
Pitcairn PRO
(215-0828062)
Generation 12.1
Architecture
GCN 1.0
Intel
Foundry
TSMC
10 nm
Process Size
28 nm
Unknown
Transistors
2.8 billion
95 mm²
Die Size
212 mm²
Graphics Features
12 (12_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
3.0
OpenCL
1.2
1.3
Vulkan
1.2
-
-
-
6.4
Shader Model
5.1
