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 A770
CORE STATE
DG2-512
VRAM
16 GB
CLOCK SPEED
2400 MHz
TDP
225 W
BUS WIDTH
256 bit
ARCHITECTURE
Xe-HPG
PROCESS
6 nm
LAUNCH DATE
2022
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
3dmark_3dmark_steel_nomad_dx12
DETAILED SPECIFICATIONS
SPECIFICATION
660M
A770
Core Specs
Shading Units
384
4,096
+966.7%
Shaders
384
4,096
+966.7%
TMUs
24
256
+966.7%
ROPs
16
128
+700.0%
Compute Units
6
—
Execution Units
—
512
Clocks
Base Clock
1500 MHz
2100 MHz
Boost Clock
1900 MHz
2400 MHz
Memory Clock
System Shared
2000 MHz
16 Gbps effective
Memory
Memory Size
System Shared
16 GB
VRAM (MB)
—
16,384
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
16 MB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
30.40 GPixel/s
307.2 GPixel/s
Texture Rate
45.60 GTexel/s
614.4 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
19.66 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
2.458 TFLOPS (1:8)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
39.32 TFLOPS (2:1)
AI/RT
RT Cores
6
32
+433.3%
XMX Cores
—
512
Power
TDP
40 W
225 W
TDP (W)
40
225
+462.5%
Suggested PSU
—
550 W
Power Connectors
None
1x 6-pin + 1x 8-pin
Architecture
Architecture
RDNA 2.0
Xe-HPG
GPU Name
Rembrandt
DG2-512
Generation
Navi II IGP
(Rembrandt Mobile)
Alchemist
(Arc 7)
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
Launch Price
—
329 USD
Production
End-of-life
End-of-life
Predecessor
Vega II IGP
Xe Graphics
Successor
Navi III IGP
Battlemage