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
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
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
1574 MHz
Boost Clock
1900 MHz
1720 MHz
Memory Clock
System Shared
806 MHz
1612 Mbps 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
825.3 GB/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
—
2,199 USD
Production
End-of-life
End-of-life
Predecessor
Vega II IGP
—
Successor
Navi III IGP
—