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
RADEON
Radeon Pro W5500X
CORE STATE
Navi 14
VRAM
8 GB
CLOCK SPEED
1757 MHz
TDP
125 W
BUS WIDTH
128 bit
ARCHITECTURE
RDNA 1.0
PROCESS
7 nm
LAUNCH DATE
2019
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
660M
Pro W5500X
Core Specs
Shading Units
384
1,536
+300.0%
Shaders
384
1,536
+300.0%
TMUs
24
96
+300.0%
ROPs
16
32
+100.0%
Compute Units
6
24
+300.0%
Clocks
Base Clock
1500 MHz
1187 MHz
Boost Clock
1900 MHz
1757 MHz
Memory Clock
System Shared
1750 MHz
14 Gbps effective
Memory
Memory Size
System Shared
8 GB
VRAM (MB)
—
8,192
Memory Type
System Shared
GDDR6
Memory Bus
System Shared
128 bit
Bandwidth
System Dependent
224.0 GB/s
Cache
L1 Cache
128 KB per Array
—
L2 Cache
2 MB
2 MB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
30.40 GPixel/s
56.22 GPixel/s
Texture Rate
45.60 GTexel/s
168.7 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
5.398 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
337.3 GFLOPS (1:16)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
10.80 TFLOPS (2:1)
AI/RT
RT Cores
6
—
Power
TDP
40 W
125 W
TDP (W)
40
125
+212.5%
Suggested PSU
—
300 W
Power Connectors
None
—
Architecture
Architecture
RDNA 2.0
RDNA 1.0
GPU Name
Rembrandt
Navi 14
Generation
Navi II IGP
(Rembrandt Mobile)
Radeon Pro Mac
(Navi Series)
Process Size
6 nm
7 nm
Transistors
13,100 million
6,400 million
Die Size
208 mm²
158 mm²
Foundry
TSMC
TSMC
Density
63.0M / mm²
40.5M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.4
1.4
OpenCL
2.0
2.1
Shader Model
6.8
6.8
Physical
Slot Width
IGP
Dual-slot
Outputs
Portable Device Dependent
2x HDMI 2.0b
Bus Interface
PCIe 4.0 x8
Apple MPX
Other
Launch Price
—
599 USD
Production
End-of-life
End-of-life
Predecessor
Vega II IGP
—
Successor
Navi III IGP
—