GPU Comparison
RADEON
AMD Radeon R5 M255
CORE STATE
Topaz
VRAM
2 GB
CLOCK SPEED
940 MHz
TDP
—
BUS WIDTH
128 bit
ARCHITECTURE
GCN 3.0
PROCESS
28 nm
LAUNCH DATE
2014
VS
GPU
Iris Pro Graphics P580
CORE STATE
Skylake GT4e
VRAM
System Shared
CLOCK SPEED
1000 MHz
TDP
15 W
BUS WIDTH
System Shared
ARCHITECTURE
Generation 9.0
PROCESS
14 nm+
LAUNCH DATE
2015
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
R5 M255
Iris Pro Graphics P580
Core Specs
Shading Units
384
576
+50.0%
Shaders
384
576
+50.0%
TMUs
24
72
+200.0%
ROPs
8
9
+12.5%
Compute Units
6
—
Execution Units
—
72
Clocks
Base Clock
925 MHz
350 MHz
Boost Clock
940 MHz
1000 MHz
Memory Clock
1000 MHz
2 Gbps effective
System Shared
Memory
Memory Size
2 GB
System Shared
VRAM (MB)
2,048
—
Memory Type
DDR3
System Shared
Memory Bus
128 bit
System Shared
Bandwidth
32.00 GB/s
System Dependent
Cache
L1 Cache
16 KB (per CU)
—
L2 Cache
256 KB
—
Performance
Pixel Rate
7.520 GPixel/s
9.000 GPixel/s
Texture Rate
22.56 GTexel/s
72.00 GTexel/s
FP32 (TFLOPS)
721.9 GFLOPS
1,152.0 GFLOPS
FP64 (TFLOPS)
45.12 GFLOPS (1:16)
288.0 GFLOPS (1:4)
FP16 (TFLOPS)
721.9 GFLOPS (1:1)
2.304 TFLOPS (2:1)
Power
TDP
—
15 W
TDP (W)
—
15
Architecture
Architecture
GCN 3.0
Generation 9.0
GPU Name
Topaz
Skylake GT4e
Generation
Gem System
(R5 M200)
HD Graphics-W
(Skylake)
Process Size
28 nm
14 nm+
Transistors
1,550 million
—
Die Size
125 mm²
—
Foundry
TSMC
Intel
Density
12.4M / mm²
—
API Support
DirectX
12 (12_0)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.3
OpenCL
2.1
3.0
Shader Model
6.5
6.4
Physical
Slot Width
—
IGP
Outputs
—
Motherboard Dependent
Bus Interface
PCIe 3.0 x8
Ring Bus
Other
Production
End-of-life
End-of-life
Predecessor
Solar System
—
Successor
Polaris Mobile
—