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 Vega II Duo
CORE STATE
Vega 20
VRAM
32 GB
CLOCK SPEED
1720 MHz
TDP
475 W
BUS WIDTH
4096 bit
ARCHITECTURE
GCN 5.1
PROCESS
7 nm
LAUNCH DATE
2019
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
660M
Pro Vega II Duo
Core Specs
Shading Units
384
4,096
+966.7%
Shaders
384
4,096
+966.7%
TMUs
24
256
+966.7%
ROPs
16
64
+300.0%
Compute Units
6
64
+966.7%
Clocks
Base Clock
1500 MHz
1400 MHz
Boost Clock
1900 MHz
1720 MHz
Memory Clock
System Shared
1000 MHz
2 Gbps effective
Memory
Memory Size
System Shared
32 GB
VRAM (MB)
—
32,768
Memory Type
System Shared
HBM2
Memory Bus
System Shared
4096 bit
Bandwidth
System Dependent
1.02 TB/s
Cache
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
2 MB
4 MB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
30.40 GPixel/s
110.1 GPixel/s
Texture Rate
45.60 GTexel/s
440.3 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
14.09 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
7.045 TFLOPS (1:2)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
28.18 TFLOPS (2:1)
AI/RT
RT Cores
6
—
Power
TDP
40 W
475 W
TDP (W)
40
475
+1087.5%
Suggested PSU
—
850 W
Power Connectors
None
—
Architecture
Architecture
RDNA 2.0
GCN 5.1
GPU Name
Rembrandt
Vega 20
Generation
Navi II IGP
(Rembrandt Mobile)
Radeon Pro Mac
(Vega Series)
Process Size
6 nm
7 nm
Transistors
13,100 million
13,230 million
Die Size
208 mm²
331 mm²
Foundry
TSMC
TSMC
Density
63.0M / mm²
40.0M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.4
1.3
OpenCL
2.0
2.1
Shader Model
6.8
6.7
Physical
Slot Width
IGP
Quad-slot
Outputs
Portable Device Dependent
1x HDMI 2.0b4x Thunderbolt
Bus Interface
PCIe 4.0 x8
Apple MPX
Other
Launch Price
—
4,399 USD
Production
End-of-life
End-of-life
Predecessor
Vega II IGP
—
Successor
Navi III IGP
—