AMD Radeon RX 6800 vs AMD Radeon RX 6600S
GPU Specs Compare
Graphics Card
Release Date
Oct 2020
Jan 2022
Generation
Navi II
Mobility Radeon
Type
Desktop
Mobile
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x8
Clock Speeds
Base Clock
1700 MHz
1700 MHz
Boost Clock
2105 MHz
2000 MHz
Memory Clock
2000 MHz
1750 MHz
Memory
Memory Size
16GB
4GB
Memory Type
GDDR6
GDDR6
Memory Bus
256bit
128bit
Bandwidth
512.0GB/s
224.0GB/s
Render Config
Compute Units
60
28
Shading Units
3840
1792
TMUs
240
112
ROPs
96
64
RT Cores
60
28
L1 Cache
128 KB per Array
128 KB per Array
L2 Cache
4 MB
2 MB
L3 Cache
128 MB
32 MB
Theoretical Performance
Pixel Rate
202.1 GPixel/s
128.0 GPixel/s
Texture Rate
505.2 GTexel/s
224.0 GTexel/s
FP16 (half)
32.33 TFLOPS
14.34 TFLOPS
FP32 (float)
16.17 TFLOPS
7.168 TFLOPS
FP64 (double)
1010 GFLOPS
448.0 GFLOPS
Graphics Processor
GPU Name
Navi 21
Navi 23
GPU Variant
Navi 21 XL(215-121000187)
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Architecture
RDNA 2.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
7 nm
7 nm
Transistors
26.8 billion
11.06 billion
Die Size
520 mm²
237 mm²
Board Design
TDP
250W
80W
Suggested PSU
600 W
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Outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
No outputs
Power Connectors
2x 8-pin
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.3
1.3
Shader Model
6.5
6.5
📊 Benchmark
3DMark Time Spy
16,182
7,700
3DMark Time Spy Extreme
7,771
3,389
3DMark Speed Way
3,062
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