Intel Iris Pro Graphics 580 vs AMD Radeon 660M
We compared two Integrated graphics card GPUs: 0System Shared VRAM Iris Pro Graphics 580 and 0System Shared VRAM Radeon 660M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Intel Iris Pro Graphics 580 's Advantages
192 additional rendering cores
AMD Radeon 660M 's Advantages
Released 6 years and 4 months late
Boost Clock has increased by 100% (1900MHz vs 950MHz)
Score
Benchmark
FP32 (float)
Iris Pro Graphics 580
1.094 TFLOPS
Radeon 660M
+33%
1.459 TFLOPS
3DMark Time Spy
Iris Pro Graphics 580
728
Radeon 660M
+111%
1537
3DMark Time Spy Extreme
Iris Pro Graphics 580
336
Radeon 660M
+108%
701
Blender
Iris Pro Graphics 580
84
Radeon 660M
+189%
243
Graphics Card
Sep 2015
Release Date
Jan 2022
HD Graphics-M
Generation
Rembrandt
Integrated
Type
Integrated
Ring Bus
Bus Interface
PCIe 4.0 x8
Clock Speeds
350 MHz
Base Clock
1500 MHz
950 MHz
Boost Clock
1900 MHz
System Shared
Memory Clock
System Shared
Memory
System Shared
Memory Size
System Shared
System Shared
Memory Type
System Shared
System Shared
Memory Bus
System Shared
System Dependent
Bandwidth
System Dependent
Render Config
-
Compute Units
6
-
-
-
576
Shading Units
384
72
TMUs
24
9
ROPs
16
-
-
-
-
RT Cores
6
-
L1 Cache
128 KB per Array
-
L2 Cache
2 MB
-
-
-
Theoretical Performance
8.550 GPixel/s
Pixel Rate
30.40 GPixel/s
68.40 GTexel/s
Texture Rate
45.60 GTexel/s
2.189 TFLOPS
FP16 (half)
2.918 TFLOPS
1094 GFLOPS
FP32 (float)
1459 GFLOPS
273.6 GFLOPS
FP64 (double)
91.20 GFLOPS
Board Design
15W
TDP
15W
-
-
-
No outputs
Outputs
No outputs
-
Power Connectors
None
Graphics Processor
Skylake GT4e
GPU Name
Rembrandt
-
-
-
Generation 9.0
Architecture
RDNA 2.0
Intel
Foundry
TSMC
14 nm+
Process Size
6 nm
Unknown
Transistors
13.1 billion
Unknown
Die Size
210 mm²
Graphics Features
12 (12_1)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
3.0
OpenCL
2.0
1.3
Vulkan
1.2
-
-
-
6.4
Shader Model
6.5
