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 W6600
CORE STATE
Navi 23
VRAM
8 GB
CLOCK SPEED
2580 MHz
TDP
100 W
BUS WIDTH
128 bit
ARCHITECTURE
RDNA 2.0
PROCESS
7 nm
LAUNCH DATE
2021
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
660M
PRO W6600
Core Specs
Shading Units
384
1,792
+366.7%
Shaders
384
1,792
+366.7%
TMUs
24
112
+366.7%
ROPs
16
64
+300.0%
Compute Units
6
28
+366.7%
Clocks
Base Clock
1500 MHz
2331 MHz
Boost Clock
1900 MHz
2580 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
128 KB per Array
L2 Cache
2 MB
2 MB
L3 Cache
—
32 MB
L0 Cache
32 KB per WGP
32 KB per WGP
Performance
Pixel Rate
30.40 GPixel/s
165.1 GPixel/s
Texture Rate
45.60 GTexel/s
289.0 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
9.247 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
577.9 GFLOPS (1:16)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
18.49 TFLOPS (2:1)
AI/RT
RT Cores
6
28
+366.7%
Power
TDP
40 W
100 W
TDP (W)
40
100
+150.0%
Suggested PSU
—
300 W
Power Connectors
None
1x 6-pin
Architecture
Architecture
RDNA 2.0
RDNA 2.0
GPU Name
Rembrandt
Navi 23
Generation
Navi II IGP
(Rembrandt Mobile)
Radeon Pro Navi
(Navi II Series)
Process Size
6 nm
7 nm
Transistors
13,100 million
11,060 million
Die Size
208 mm²
237 mm²
Foundry
TSMC
TSMC
Density
63.0M / mm²
46.7M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
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
Single-slot
Length
—
241 mm
9.5 inches
Outputs
Portable Device Dependent
4x DisplayPort 1.4a
Bus Interface
PCIe 4.0 x8
PCIe 4.0 x8
Other
Launch Price
—
649 USD
Production
End-of-life
End-of-life
Predecessor
Vega II IGP
Radeon Pro Vega
Successor
Navi III IGP
—