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 RX 570X
CORE STATE
Polaris 20
VRAM
8 GB
CLOCK SPEED
1244 MHz
TDP
150 W
BUS WIDTH
256 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2018
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
passmark_g2d
passmark_g3d
DETAILED SPECIFICATIONS
SPECIFICATION
660M
RX 570X
Core Specs
Shading Units
384
2,048
+433.3%
Shaders
384
2,048
+433.3%
TMUs
24
128
+433.3%
ROPs
16
32
+100.0%
Compute Units
6
32
+433.3%
Clocks
Base Clock
1500 MHz
1168 MHz
Boost Clock
1900 MHz
1244 MHz
Memory Clock
System Shared
1750 MHz
7 Gbps effective
Memory
Memory Size
System Shared
8 GB
VRAM (MB)
—
8,192
Memory Type
System Shared
GDDR5
Memory Bus
System Shared
256 bit
Bandwidth
System Dependent
224.0 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
39.81 GPixel/s
Texture Rate
45.60 GTexel/s
159.2 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
5.095 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
318.5 GFLOPS (1:16)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
5.095 TFLOPS (1:1)
AI/RT
RT Cores
6
—
Power
TDP
40 W
150 W
TDP (W)
40
150
+275.0%
Suggested PSU
—
450 W
Power Connectors
None
1x 6-pin
Architecture
Architecture
RDNA 2.0
GCN 4.0
GPU Name
Rembrandt
Polaris 20
Generation
Navi II IGP
(Rembrandt Mobile)
Polaris
(RX 500X)
Process Size
6 nm
14 nm
Transistors
13,100 million
5,700 million
Die Size
208 mm²
232 mm²
Foundry
TSMC
GlobalFoundries
Density
63.0M / mm²
24.6M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 (12_0)
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
Dual-slot
Length
—
241 mm
9.5 inches
Outputs
Portable Device Dependent
1x DVI1x HDMI 2.0b3x DisplayPort 1.4a
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Vega II IGP
Polaris
Successor
Navi III IGP
Vega