AMD Radeon RX 6700 XT vs NVIDIA B300
GPU · Specs Compare
Graphics Card
Release Date
Mar 2021
Sep 2025
Generation
Navi II
Server Blackwell
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
2321 MHz
1665 MHz
Boost Clock
2581 MHz
2032 MHz
Memory Clock
2000 MHz
2000 MHz
Memory
Memory Size
12GB
144GB
Memory Type
GDDR6
HBM3e
Memory Bus
192bit
4096bit
Bandwidth
384.0GB/s
4.10TB/s
Render Config
Compute Units
40
—
Shading Units
2560
18944
TMUs
160
592
ROPs
64
24
RT Cores
40
—
L1 Cache
128 KB per Array
256 KB (per SM)
L2 Cache
3 MB
50 MB
L3 Cache
96 MB
—
SM Count
—
148
Tensor Cores
—
592
Theoretical Performance
Pixel Rate
165.2 GPixel/s
48.77 GPixel/s
Texture Rate
413.0 GTexel/s
1202.9 GTexel/s
FP16 (half)
26.43 TFLOPS
1231.8 TFLOPS
FP32 (float)
13.21 TFLOPS
76.99 TFLOPS
FP64 (double)
825.9 GFLOPS
1202.9 GFLOPS
Graphics Processor
GPU Name
Navi 22
GB110
GPU Variant
Navi 22 XT(215-127000006)
—
Architecture
RDNA 2.0
Blackwell Ultra
Foundry
TSMC
TSMC
Process Size
7 nm
5 nm
Transistors
17.2 billion
104 billion
Die Size
335 mm²
Unknown
Board Design
TDP
230W
1400W
Suggested PSU
550 W
1800 W
Outputs
1x HDMI 2.13x DisplayPort 1.4a
No outputs
Power Connectors
1x 6-pin + 1x 8-pin
—
Graphics Features
DirectX
12 Ultimate (12_2)
N/A
OpenGL
4.6
N/A
OpenCL
2.1
3.0
Vulkan
1.3
N/A
Shader Model
6.5
N/A
CUDA
—
10.3
▲ Specs Compare
Data sourced from official specifications and benchmark tests.