GPU Comparison
RADEON
AMD Radeon 660M
CORE STATE
Rembrandt
VRAM
System Shared
CLOCK SPEED
1900 MHz
TDP
40 W
BUS WIDTH
System Shared
ARCHITECTURE
RDNA 2.0
PROCESS
6 nm
LAUNCH DATE
2022
VS
GPU
Iris Xe MAX Graphics
CORE STATE
DG1
VRAM
4 GB
CLOCK SPEED
1650 MHz
TDP
25 W
BUS WIDTH
128 bit
ARCHITECTURE
Generation 12.1
PROCESS
10 nm
LAUNCH DATE
2020
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
660M
Iris Xe MAX Graphics
Core Specs
Shading Units
384
768
+100.0%
Shaders
384
768
+100.0%
TMUs
24
48
+100.0%
ROPs
16
24
+50.0%
Compute Units
6
—
Execution Units
—
96
Clocks
Base Clock
1500 MHz
300 MHz
Boost Clock
1900 MHz
1650 MHz
Memory Clock
System Shared
2133 MHz
4.3 Gbps effective
Memory
Memory Size
System Shared
4 GB
VRAM (MB)
—
4,096
Memory Type
System Shared
LPDDR4X
Memory Bus
System Shared
128 bit
Bandwidth
System Dependent
68.26 GB/s
Cache
L1 Cache
128 KB per Array
—
L2 Cache
2 MB
1024 KB
L3 Cache
—
16 MB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
30.40 GPixel/s
39.60 GPixel/s
Texture Rate
45.60 GTexel/s
79.20 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
2.534 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
633.6 GFLOPS (1:4)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
5.069 TFLOPS (2:1)
AI/RT
RT Cores
6
—
Power
TDP
40 W
25 W
TDP (W)
40
25
-37.5%
Suggested PSU
—
200 W
Power Connectors
None
—
Architecture
Architecture
RDNA 2.0
Generation 12.1
GPU Name
Rembrandt
DG1
Generation
Navi II IGP
(Rembrandt Mobile)
Xe Graphics
Process Size
6 nm
10 nm
Transistors
13,100 million
—
Die Size
208 mm²
95 mm²
Foundry
TSMC
Intel
Density
63.0M / mm²
—
API Support
DirectX
12 Ultimate (12_2)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.4
1.4
OpenCL
2.0
3.0
Shader Model
6.8
6.6
Physical
Slot Width
IGP
IGP
Outputs
Portable Device Dependent
No outputs
Bus Interface
PCIe 4.0 x8
PCIe 4.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
Vega II IGP
Graphics
Successor
Navi III IGP
Alchemist