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 Duo
CORE STATE
Capsaicin
VRAM
4 GB
CLOCK SPEED
—
TDP
350 W
BUS WIDTH
4096 bit
ARCHITECTURE
GCN 3.0
PROCESS
28 nm
LAUNCH DATE
2016
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
660M
Pro 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
—
Boost Clock
1900 MHz
—
GPU Clock
—
1000 MHz
Memory Clock
System Shared
500 MHz
1000 Mbps effective
Memory
Memory Size
System Shared
4 GB
VRAM (MB)
—
4,096
Memory Type
System Shared
HBM
Memory Bus
System Shared
4096 bit
Bandwidth
System Dependent
512.0 GB/s
Cache
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
2 MB
2 MB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
30.40 GPixel/s
64.00 GPixel/s
Texture Rate
45.60 GTexel/s
256.0 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
8.192 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
512.0 GFLOPS (1:16)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
8.192 TFLOPS (1:1)
AI/RT
RT Cores
6
—
Power
TDP
40 W
350 W
TDP (W)
40
350
+775.0%
Suggested PSU
—
750 W
Power Connectors
None
3x 8-pin
Architecture
Architecture
RDNA 2.0
GCN 3.0
GPU Name
Rembrandt
Capsaicin
Generation
Navi II IGP
(Rembrandt Mobile)
Radeon Pro GCN
Process Size
6 nm
28 nm
Transistors
13,100 million
8,900 million
Die Size
208 mm²
596 mm²
Foundry
TSMC
TSMC
Density
63.0M / mm²
14.9M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.4
1.2.170
OpenCL
2.0
2.1
Shader Model
6.8
6.5
Physical
Slot Width
IGP
Dual-slot
Length
—
277 mm
10.9 inches
Height
—
111 mm
4.4 inches
Outputs
Portable Device Dependent
1x HDMI 1.4a3x DisplayPort 1.2
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x16
Other
Launch Price
—
1,499 USD
Production
End-of-life
End-of-life
Predecessor
Vega II IGP
FirePro GCN
Successor
Navi III IGP
Radeon Pro Polaris