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 7900M
CORE STATE
Navi 31
VRAM
16 GB
CLOCK SPEED
2090 MHz
TDP
180 W
BUS WIDTH
256 bit
ARCHITECTURE
RDNA 3.0
PROCESS
5 nm
LAUNCH DATE
2023
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
3dmark_3dmark_steel_nomad_dx12
DETAILED SPECIFICATIONS
SPECIFICATION
660M
RX 7900M
Core Specs
Shading Units
384
4,608
+1100.0%
Shaders
384
4,608
+1100.0%
TMUs
24
288
+1100.0%
ROPs
16
192
+1100.0%
Compute Units
6
72
+1100.0%
Clocks
Base Clock
1500 MHz
1825 MHz
Boost Clock
1900 MHz
2090 MHz
Memory Clock
System Shared
2250 MHz
18 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
576.0 GB/s
Cache
L1 Cache
128 KB per Array
256 KB per Array
L2 Cache
2 MB
6 MB
L3 Cache
—
64 MB
L0 Cache
32 KB per WGP
64 KB per WGP
Performance
Pixel Rate
30.40 GPixel/s
401.3 GPixel/s
Texture Rate
45.60 GTexel/s
601.9 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
38.52 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
1,203.8 GFLOPS (1:32)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
77.05 TFLOPS (2:1)
AI/RT
RT Cores
6
72
+1100.0%
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 31
Codename
—
Plum Bonito
Generation
Navi II IGP
(Rembrandt Mobile)
Navi Mobile
(RX 7000M)
Process Size
6 nm
5 nm
Transistors
13,100 million
57,700 million
Die Size
208 mm²
529 mm²
Foundry
TSMC
TSMC
Density
63.0M / mm²
109.1M / mm²
AMD MCM
GCD Transistors
—
45,400 million
GCD Die Size
—
304.35 mm²
MCD Transistors
—
2,050 million x6
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
—