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 64
CORE STATE
Vega 10
VRAM
16 GB
CLOCK SPEED
1350 MHz
TDP
250 W
BUS WIDTH
2048 bit
ARCHITECTURE
GCN 5.0
PROCESS
14 nm
LAUNCH DATE
2017
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
660M
Pro Vega 64
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
1250 MHz
Boost Clock
1900 MHz
1350 MHz
Memory Clock
System Shared
786 MHz
1572 Mbps effective
Memory
Memory Size
System Shared
16 GB
VRAM (MB)
—
16,384
Memory Type
System Shared
HBM2
Memory Bus
System Shared
2048 bit
Bandwidth
System Dependent
402.4 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
86.40 GPixel/s
Texture Rate
45.60 GTexel/s
345.6 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
11.06 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
691.2 GFLOPS (1:16)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
22.12 TFLOPS (2:1)
AI/RT
RT Cores
6
—
Power
TDP
40 W
250 W
TDP (W)
40
250
+525.0%
Power Connectors
None
None
Architecture
Architecture
RDNA 2.0
GCN 5.0
GPU Name
Rembrandt
Vega 10
Generation
Navi II IGP
(Rembrandt Mobile)
Radeon Pro Mac
(Vega Series)
Process Size
6 nm
14 nm
Transistors
13,100 million
12,500 million
Die Size
208 mm²
495 mm²
Foundry
TSMC
GlobalFoundries
Density
63.0M / mm²
25.3M / 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
IGP
Outputs
Portable Device Dependent
Portable Device Dependent
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Vega II IGP
—
Successor
Navi III IGP
—