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
GEFORCE
L4
CORE STATE
AD104
VRAM
24 GB
CLOCK SPEED
2040 MHz
TDP
72 W
BUS WIDTH
192 bit
ARCHITECTURE
Ada Lovelace
PROCESS
5 nm
LAUNCH DATE
2023
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
660M
L4
Core Specs
Shading Units
384
7,424
+1833.3%
Shaders
384
7,424
+1833.3%
TMUs
24
240
+900.0%
ROPs
16
80
+400.0%
Compute Units
6
—
SM Count
—
60
Clocks
Base Clock
1500 MHz
795 MHz
Boost Clock
1900 MHz
2040 MHz
Memory Clock
System Shared
1563 MHz
12.5 Gbps effective
Memory
Memory Size
System Shared
24 GB
VRAM (MB)
—
24,576
Memory Type
System Shared
GDDR6
Memory Bus
System Shared
192 bit
Bandwidth
System Dependent
300.1 GB/s
Cache
L1 Cache
128 KB per Array
128 KB (per SM)
L2 Cache
2 MB
48 MB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
30.40 GPixel/s
163.2 GPixel/s
Texture Rate
45.60 GTexel/s
489.6 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
30.29 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
473.3 GFLOPS (1:64)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
30.29 TFLOPS (1:1)
AI/RT
RT Cores
6
60
+900.0%
Tensor Cores
—
240
Power
TDP
40 W
72 W
TDP (W)
40
72
+80.0%
Suggested PSU
—
250 W
Power Connectors
None
None
Architecture
Architecture
RDNA 2.0
Ada Lovelace
GPU Name
Rembrandt
AD104
Generation
Navi II IGP
(Rembrandt Mobile)
Server Ada
(Lxx)
Process Size
6 nm
5 nm
Transistors
13,100 million
35,800 million
Die Size
208 mm²
294 mm²
Foundry
TSMC
TSMC
Density
63.0M / mm²
121.8M / 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
CUDA
—
8.9
Shader Model
6.8
6.8
Physical
Slot Width
IGP
Single-slot
Length
—
169 mm
6.7 inches
Height
—
56 mm
2.2 inches
Outputs
Portable Device Dependent
No outputs
Bus Interface
PCIe 4.0 x8
PCIe 4.0 x16
Other
Production
End-of-life
Active
Predecessor
Vega II IGP
Server Ampere
Successor
Navi III IGP
Server Hopper