AMD Radeon RX 6600S vs AMD Radeon RX 7900 GRE
GPU · Specs Compare
Graphics Card
Release Date
Jan 2022
Jul 2023
Generation
Mobility Radeon
Navi III
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x8
PCIe 4.0 x16
Clock Speeds
Base Clock
1700 MHz
1287 MHz
Boost Clock
2000 MHz
2245 MHz
Memory Clock
1750 MHz
2250 MHz
Memory
Memory Size
4GB
16GB
Memory Type
GDDR6
GDDR6
Memory Bus
128bit
256bit
Bandwidth
224.0GB/s
576.0GB/s
Render Config
Compute Units
28
80
Shading Units
1792
5120
TMUs
112
320
ROPs
64
160
RT Cores
28
80
L1 Cache
128 KB per Array
256 KB per Array
L2 Cache
2 MB
6 MB
L3 Cache
32 MB
64 MB
Theoretical Performance
Pixel Rate
128.0 GPixel/s
359.2 GPixel/s
Texture Rate
224.0 GTexel/s
718.4 GTexel/s
FP16 (half)
14.34 TFLOPS
91.96 TFLOPS
FP32 (float)
7.168 TFLOPS
45.98 TFLOPS
FP64 (double)
448.0 GFLOPS
1436.8 GFLOPS
Graphics Processor
GPU Name
Navi 23
Navi 31
Architecture
RDNA 2.0
RDNA 3.0
Foundry
TSMC
TSMC
Process Size
7 nm
5 nm
Transistors
11.06 billion
57.7 billion
Die Size
237 mm²
529 mm²
GPU Variant
—
Navi 31 XL(215-145000206)
Board Design
TDP
80W
260W
Outputs
No outputs
1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C
Power Connectors
None
2x 8-pin
Suggested PSU
—
600 W
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
2.2
Vulkan
1.3
1.3
Shader Model
6.5
6.8
Benchmark
3DMark Time Spy
7,700
22,476
3DMark Time Spy Extreme
3,389
10,591
3DMark Speed Way
—
4,417
Cyberpunk 2077 2160p
—
40
Cyberpunk 2077 1440p
—
88
Blender
—
3,114
Cyberpunk 2077 1080p
—
130
▲ Specs Compare
Data sourced from official specifications and benchmark tests.