Iris Pro Graphics 580 vs Radeon R6 M255DX
We compared two Integrated graphics card GPUs: 0System Shared VRAM Iris Pro Graphics 580 and 0System Shared VRAM Radeon R6 M255DX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Iris Pro Graphics 580 Advantages
Released 11 months late
Boost Clock has increased by 1% (950MHz vs 940MHz)
192 additional rendering cores
Score
Benchmark
FP32 (float)
Iris Pro Graphics 580
+51%
1094
Radeon R6 M255DX
721
Graphics Card
Sep 2015
Release Date
Oct 2014
HD Graphics-M
Generation
Gem System Hybrid
Integrated
Type
Integrated
Ring Bus
Bus Interface
IGP
Clock Speeds
350 MHz
Base Clock
925 MHz
950 MHz
Boost Clock
940 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
8
-
L1 Cache
16 KB (per CU)
-
L2 Cache
256 KB
Theoretical Performance
8.550 GPixel/s
Pixel Rate
7.520 GPixel/s
68.40 GTexel/s
Texture Rate
22.56 GTexel/s
2.189 TFLOPS
FP16 (half)
721.9 GFLOPS
1094 GFLOPS
FP32 (float)
721.9 GFLOPS
273.6 GFLOPS
FP64 (double)
45.12 GFLOPS
Board Design
15W
TDP
Unknown
No outputs
Outputs
Portable Device Dependent
Graphics Processor
Skylake GT4e
GPU Name
Topaz
-
GPU Variant
Topaz PRO
(216-0858030)
(216-0858030)
Generation 9.0
Architecture
GCN 3.0
Intel
Foundry
TSMC
14 nm+
Process Size
28 nm
Unknown
Transistors
1.55 billion
Unknown
Die Size
125 mm²
Graphics Features
12 (12_1)
DirectX
12 (12_0)
4.6
OpenGL
4.6
3.0
OpenCL
2.1
1.3
Vulkan
1.2.170
6.4
Shader Model
6.5
