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 W6800
CORE STATE
Navi 21
VRAM
32 GB
CLOCK SPEED
2322 MHz
TDP
250 W
BUS WIDTH
256 bit
ARCHITECTURE
RDNA 2.0
PROCESS
7 nm
LAUNCH DATE
2021
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
660M
PRO W6800
Core Specs
Shading Units
384
3,840
+900.0%
Shaders
384
3,840
+900.0%
TMUs
24
240
+900.0%
ROPs
16
96
+500.0%
Compute Units
6
60
+900.0%
Clocks
Base Clock
1500 MHz
1575 MHz
Boost Clock
1900 MHz
2322 MHz
Memory Clock
System Shared
2000 MHz
16 Gbps effective
Memory
Memory Size
System Shared
32 GB
VRAM (MB)
—
32,768
Memory Type
System Shared
GDDR6
Memory Bus
System Shared
256 bit
Bandwidth
System Dependent
512.0 GB/s
Cache
L1 Cache
128 KB per Array
128 KB per Array
L2 Cache
2 MB
4 MB
L3 Cache
—
128 MB
L0 Cache
32 KB per WGP
32 KB per WGP
Performance
Pixel Rate
30.40 GPixel/s
222.9 GPixel/s
Texture Rate
45.60 GTexel/s
557.3 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
17.83 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
1,114.6 GFLOPS (1:16)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
35.67 TFLOPS (2:1)
AI/RT
RT Cores
6
60
+900.0%
Power
TDP
40 W
250 W
TDP (W)
40
250
+525.0%
Suggested PSU
—
600 W
Power Connectors
None
1x 6-pin + 1x 8-pin
Architecture
Architecture
RDNA 2.0
RDNA 2.0
GPU Name
Rembrandt
Navi 21
Generation
Navi II IGP
(Rembrandt Mobile)
Radeon Pro Navi
(Navi II Series)
Process Size
6 nm
7 nm
Transistors
13,100 million
26,800 million
Die Size
208 mm²
520 mm²
Foundry
TSMC
TSMC
Density
63.0M / mm²
51.5M / 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
2.1
Shader Model
6.8
6.8
Physical
Slot Width
IGP
Dual-slot
Length
—
267 mm
10.5 inches
Height
—
120 mm
4.7 inches
Outputs
Portable Device Dependent
6x mini-DisplayPort 1.4a
Bus Interface
PCIe 4.0 x8
PCIe 4.0 x16
Other
Launch Price
—
2,249 USD
Production
End-of-life
End-of-life
Predecessor
Vega II IGP
Radeon Pro Vega
Successor
Navi III IGP
—