AMD Radeon Instinct MI250X vs AMD Radeon RX 6800
GPU · Specs Compare
Graphics Card
Release Date
Nov 2021
Oct 2020
Generation
Radeon Instinct
Navi II
Type
Professional
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1000 MHz
1700 MHz
Boost Clock
1700 MHz
2105 MHz
Memory Clock
1600 MHz
2000 MHz
Memory
Memory Size
128GB
16GB
Memory Type
HBM2e
GDDR6
Memory Bus
8192bit
256bit
Bandwidth
3277GB/s
512.0GB/s
Render Config
Compute Units
220
60
Shading Units
14080
3840
TMUs
880
240
ROPs
0
96
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
16 MB
4 MB
RT Cores
—
60
L3 Cache
—
128 MB
Theoretical Performance
Pixel Rate
0 MPixel/s
202.1 GPixel/s
Texture Rate
1496 GTexel/s
505.2 GTexel/s
FP16 (half)
383.0 TFLOPS
32.33 TFLOPS
FP32 (float)
47.87 TFLOPS
16.17 TFLOPS
FP64 (double)
47.87 TFLOPS
1010 GFLOPS
Graphics Processor
GPU Name
Aldebaran
Navi 21
GPU Variant
Aldebaran XT
Navi 21 XL(215-121000187)
Architecture
CDNA 2.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
6 nm
7 nm
Transistors
58.2 billion
26.8 billion
Die Size
Unknown
520 mm²
Board Design
TDP
500W
250W
Suggested PSU
900 W
600 W
Outputs
No outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Power Connectors
2x 8-pin
2x 8-pin
Graphics Features
DirectX
N/A
12 Ultimate (12_2)
OpenGL
N/A
4.6
OpenCL
3.0
2.1
Vulkan
N/A
1.3
Shader Model
N/A
6.5
Benchmark
3DMark Time Spy
—
16,182
3DMark Time Spy Extreme
—
7,771
3DMark Speed Way
—
3,062
▲ Specs Compare
Data sourced from official specifications and benchmark tests.