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
Arc A370M
CORE STATE
DG2-128
VRAM
4 GB
CLOCK SPEED
2050 MHz
TDP
35 W
BUS WIDTH
64 bit
ARCHITECTURE
Xe-HPG
PROCESS
6 nm
LAUNCH DATE
2022
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
660M
A370M
Core Specs
Shading Units
384
1,024
+166.7%
Shaders
384
1,024
+166.7%
TMUs
24
64
+166.7%
ROPs
16
32
+100.0%
Compute Units
6
—
Execution Units
—
128
Clocks
Base Clock
1500 MHz
1550 MHz
Boost Clock
1900 MHz
2050 MHz
Memory Clock
System Shared
1750 MHz
14 Gbps effective
Memory
Memory Size
System Shared
4 GB
VRAM (MB)
—
4,096
Memory Type
System Shared
GDDR6
Memory Bus
System Shared
64 bit
Bandwidth
System Dependent
112.0 GB/s
Cache
L1 Cache
128 KB per Array
—
L2 Cache
2 MB
4 MB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
30.40 GPixel/s
65.60 GPixel/s
Texture Rate
45.60 GTexel/s
131.2 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
4.198 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
1,049.6 GFLOPS (1:4)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
8.397 TFLOPS (2:1)
AI/RT
RT Cores
6
8
+33.3%
XMX Cores
—
128
Power
TDP
40 W
35 W
TDP (W)
40
35
-12.5%
Power Connectors
None
—
Architecture
Architecture
RDNA 2.0
Xe-HPG
GPU Name
Rembrandt
DG2-128
Generation
Navi II IGP
(Rembrandt Mobile)
Alchemist
(Arc 3 Mobile)
Process Size
6 nm
6 nm
Transistors
13,100 million
7,200 million
Die Size
208 mm²
157 mm²
Foundry
TSMC
TSMC
Density
63.0M / mm²
45.9M / 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
3.0
Shader Model
6.8
6.6
Physical
Slot Width
IGP
IGP
Outputs
Portable Device Dependent
Portable Device Dependent
Bus Interface
PCIe 4.0 x8
PCIe 4.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
Vega II IGP
—
Successor
Navi III IGP
—