AMD Radeon RX 6900 XT vs AMD Radeon RX 6800 XT
GPU · Specs Compare
Graphics Card
Release Date
Oct 2020
Oct 2020
Generation
Navi II
Navi II
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1825 MHz
1825 MHz
Boost Clock
2250 MHz
2250 MHz
Memory Clock
2000 MHz
2000 MHz
Memory
Memory Size
16GB
16GB
Memory Type
GDDR6
GDDR6
Memory Bus
256bit
256bit
Bandwidth
512.0GB/s
512.0GB/s
Render Config
Compute Units
80
72
Shading Units
5120
4608
TMUs
320
288
ROPs
128
128
RT Cores
80
72
L1 Cache
128 KB per Array
128 KB per Array
L2 Cache
4 MB
4 MB
L3 Cache
128 MB
128 MB
Theoretical Performance
Pixel Rate
288.0 GPixel/s
288.0 GPixel/s
Texture Rate
720.0 GTexel/s
648.0 GTexel/s
FP16 (half)
46.08 TFLOPS
41.47 TFLOPS
FP32 (float)
23.04 TFLOPS
20.74 TFLOPS
FP64 (double)
1440.0 GFLOPS
1296 GFLOPS
Graphics Processor
GPU Name
Navi 21
Navi 21
GPU Variant
Navi 21 XTX(215-121000167)
Navi 21 XT(215-121000177)
Architecture
RDNA 2.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
7 nm
7 nm
Transistors
26.8 billion
26.8 billion
Die Size
520 mm²
520 mm²
Board Design
TDP
300W
300W
Suggested PSU
700 W
700 W
Outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Power Connectors
2x 8-pin
2x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.4
1.3
Shader Model
6.8
6.5
Benchmark
3DMark Time Spy
20,764
19,329
▲ Specs Compare
Data sourced from official specifications and benchmark tests.