AMD Radeon RX 6800S vs AMD Radeon RX 455 OEM
GPU · Specs Compare
Graphics Card
Release Date
Jan 2022
Jun 2016
Generation
Mobility Radeon
Arctic Islands
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x16
Clock Speeds
Base Clock
1800 MHz
—
Boost Clock
2100 MHz
—
Memory Clock
2000 MHz
1625 MHz
Memory
Memory Size
8GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
128bit
128bit
Bandwidth
256.0GB/s
104.0GB/s
Render Config
Compute Units
32
12
Shading Units
2048
768
TMUs
128
48
ROPs
64
16
RT Cores
32
—
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
2 MB
256 KB
L3 Cache
32 MB
—
Theoretical Performance
Pixel Rate
134.4 GPixel/s
16.80 GPixel/s
Texture Rate
268.8 GTexel/s
50.40 GTexel/s
FP16 (half)
17.20 TFLOPS
—
FP32 (float)
8.602 TFLOPS
1.613 TFLOPS
FP64 (double)
537.6 GFLOPS
100.8 GFLOPS
Graphics Processor
GPU Name
Navi 23
Tobago
Architecture
RDNA 2.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
7 nm
28 nm
Transistors
11.06 billion
2.08 billion
Die Size
237 mm²
160 mm²
GPU Variant
—
Tobago PRO(215-0875010)
Board Design
TDP
100W
100W
Outputs
No outputs
1x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
1x 6-pin
Suggested PSU
—
300 W
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.0
Vulkan
1.3
1.2
Shader Model
6.5
6.3
▲ Specs Compare
Data sourced from official specifications and benchmark tests.