AMD Radeon RX 6800 vs AMD Radeon R9 M385X
GPU Specs Compare
Graphics Card
Release Date
Oct 2020
May 2015
Generation
Navi II
Gem System
Type
Desktop
Mobile
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1700 MHz
1000 MHz
Boost Clock
2105 MHz
1100 MHz
Memory Clock
2000 MHz
1200 MHz
Memory
Memory Size
16GB
4GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
128bit
Bandwidth
512.0GB/s
76.80GB/s
Render Config
Compute Units
60
14
Shading Units
3840
896
TMUs
240
56
ROPs
96
16
RT Cores
60
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
4 MB
256 KB
L3 Cache
128 MB
-
Theoretical Performance
Pixel Rate
202.1 GPixel/s
17.60 GPixel/s
Texture Rate
505.2 GTexel/s
61.60 GTexel/s
FP16 (half)
32.33 TFLOPS
-
FP32 (float)
16.17 TFLOPS
1.971 TFLOPS
FP64 (double)
1010 GFLOPS
123.2 GFLOPS
Graphics Processor
GPU Name
Navi 21
Strato
GPU Variant
Navi 21 XL(215-121000187)
Strato XT
Architecture
RDNA 2.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
7 nm
28 nm
Transistors
26.8 billion
2.08 billion
Die Size
520 mm²
160 mm²
Board Design
TDP
250W
Unknown
Suggested PSU
600 W
-
Outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Portable Device Dependent
Power Connectors
2x 8-pin
-
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.3
1.2.170
Shader Model
6.5
6.5
📊 Benchmark
3DMark Time Spy
16,182
-
3DMark Time Spy Extreme
7,771
-
3DMark Speed Way
3,062
-