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
GPU
Arc A580
CORE STATE
DG2-512
VRAM
8 GB
CLOCK SPEED
2000 MHz
TDP
175 W
BUS WIDTH
256 bit
ARCHITECTURE
Xe-HPG
PROCESS
6 nm
LAUNCH DATE
2023
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
3dmark_3dmark_steel_nomad_dx12
DETAILED SPECIFICATIONS
SPECIFICATION
660M
A580
Core Specs
Shading Units
384
3,072
+700.0%
Shaders
384
3,072
+700.0%
TMUs
24
192
+700.0%
ROPs
16
96
+500.0%
Compute Units
6
—
Execution Units
—
384
Clocks
Base Clock
1500 MHz
1700 MHz
Boost Clock
1900 MHz
2000 MHz
Memory Clock
System Shared
2000 MHz
16 Gbps effective
Memory
Memory Size
System Shared
8 GB
VRAM (MB)
—
8,192
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
—
L2 Cache
2 MB
8 MB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
30.40 GPixel/s
192.0 GPixel/s
Texture Rate
45.60 GTexel/s
384.0 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
12.29 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
1.536 TFLOPS (1:8)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
24.58 TFLOPS (2:1)
AI/RT
RT Cores
6
24
+300.0%
XMX Cores
—
384
Power
TDP
40 W
175 W
TDP (W)
40
175
+337.5%
Suggested PSU
—
450 W
Power Connectors
None
2x 8-pin
Architecture
Architecture
RDNA 2.0
Xe-HPG
GPU Name
Rembrandt
DG2-512
Generation
Navi II IGP
(Rembrandt Mobile)
Alchemist
(Arc 5)
Process Size
6 nm
6 nm
Transistors
13,100 million
21,700 million
Die Size
208 mm²
406 mm²
Foundry
TSMC
TSMC
Density
63.0M / mm²
53.4M / 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
Shader Model
6.8
6.6
Physical
Slot Width
IGP
Dual-slot
Outputs
Portable Device Dependent
1x HDMI 2.13x DisplayPort 2.0
Bus Interface
PCIe 4.0 x8
PCIe 4.0 x16
Other
Production
End-of-life
Active
Predecessor
Vega II IGP
Xe Graphics
Successor
Navi III IGP
Battlemage