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 7800M
CORE STATE
Navi 32
VRAM
12 GB
CLOCK SPEED
2335 MHz
TDP
180 W
BUS WIDTH
192 bit
ARCHITECTURE
RDNA 3.0
PROCESS
5 nm
LAUNCH DATE
2024
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
3dmark_3dmark_steel_nomad_dx12
DETAILED SPECIFICATIONS
SPECIFICATION
660M
RX 7800M
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
1295 MHz
Boost Clock
1900 MHz
2335 MHz
Game Clock
—
2145 MHz
Memory Clock
System Shared
2250 MHz
18 Gbps effective
Memory
Memory Size
System Shared
12 GB
VRAM (MB)
—
12,288
Memory Type
System Shared
GDDR6
Memory Bus
System Shared
192 bit
Bandwidth
System Dependent
432.0 GB/s
Cache
L1 Cache
128 KB per Array
128 KB per Array
L2 Cache
2 MB
4 MB
L3 Cache
—
48 MB
L0 Cache
32 KB per WGP
32 KB per WGP
Performance
Pixel Rate
30.40 GPixel/s
224.2 GPixel/s
Texture Rate
45.60 GTexel/s
560.4 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
35.87 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
1,120.8 GFLOPS (1:32)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
71.73 TFLOPS (2:1)
AI/RT
RT Cores
6
60
+900.0%
Power
TDP
40 W
180 W
TDP (W)
40
180
+350.0%
Power Connectors
None
None
Architecture
Architecture
RDNA 2.0
RDNA 3.0
GPU Name
Rembrandt
Navi 32
Codename
—
Wheat Nas
Generation
Navi II IGP
(Rembrandt Mobile)
Navi Mobile
(RX 7000M)
Process Size
6 nm
5 nm
Transistors
13,100 million
28,100 million
Die Size
208 mm²
346 mm²
Foundry
TSMC
TSMC
Density
63.0M / mm²
81.2M / 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
2.2
Shader Model
6.8
6.8
Physical
Slot Width
IGP
IGP
Outputs
Portable Device Dependent
Portable Device Dependent
Bus Interface
PCIe 4.0 x8
PCIe 4.0 x16
Other
Production
End-of-life
Active
Predecessor
Vega II IGP
Polaris Mobile
Successor
Navi III IGP
—