AMD Radeon RX 6800S vs AMD Radeon R9 390 X2
GPU · Specs Compare
Graphics Card
Release Date
Jan 2022
Sep 2015
Generation
Mobility Radeon
Pirate 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
1350 MHz
Memory
Memory Size
8GB
8GB
Memory Type
GDDR6
GDDR5
Memory Bus
128bit
512bit
Bandwidth
256.0GB/s
345.6GB/s
Render Config
Compute Units
32
40
Shading Units
2048
2560
TMUs
128
160
ROPs
64
64
RT Cores
32
—
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
2 MB
1024 KB
L3 Cache
32 MB
—
Theoretical Performance
Pixel Rate
134.4 GPixel/s
64.00 GPixel/s
Texture Rate
268.8 GTexel/s
160.0 GTexel/s
FP16 (half)
17.20 TFLOPS
—
FP32 (float)
8.602 TFLOPS
5.120 TFLOPS
FP64 (double)
537.6 GFLOPS
640.0 GFLOPS
Graphics Processor
GPU Name
Navi 23
Grenada
Architecture
RDNA 2.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
7 nm
28 nm
Transistors
11.06 billion
6.2 billion
Die Size
237 mm²
438 mm²
GPU Variant
—
Grenada PRO(215-0880030)
Board Design
TDP
100W
580W
Outputs
No outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
4x 8-pin
Suggested PSU
—
950 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.