NVIDIA GeForce RTX 2080 vs NVIDIA B300
GPU Specs Compare
Graphics Card
Release Date
Sep 2018
Sep 2025
Generation
GeForce 20
Server Blackwell
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
1515 MHz
1665 MHz
Boost Clock
1710 MHz
2032 MHz
Memory Clock
1750 MHz
2000 MHz
Memory
Memory Size
8GB
144GB
Memory Type
GDDR6
HBM3e
Memory Bus
256bit
4096bit
Bandwidth
448.0GB/s
4.10TB/s
Render Config
SM Count
46
148
Shading Units
2944
18944
TMUs
184
592
ROPs
64
24
Tensor Cores
368
592
RT Cores
46
-
L1 Cache
64 KB (per SM)
256 KB (per SM)
L2 Cache
4 MB
50 MB
Theoretical Performance
Pixel Rate
109.4 GPixel/s
48.77 GPixel/s
Texture Rate
314.6 GTexel/s
1202.9 GTexel/s
FP16 (half)
20.14 TFLOPS
1231.8 TFLOPS
FP32 (float)
10.07 TFLOPS
76.99 TFLOPS
FP64 (double)
314.6 GFLOPS
1202.9 GFLOPS
Graphics Processor
GPU Name
TU104
GB110
GPU Variant
TU104-400A-A1
-
Architecture
Turing
Blackwell Ultra
Foundry
TSMC
TSMC
Process Size
12 nm
5 nm
Transistors
13.6 billion
104 billion
Die Size
545 mm²
Unknown
Board Design
TDP
215W
1400W
Suggested PSU
550 W
1800 W
Outputs
1x HDMI 2.03x DisplayPort 1.4a1x USB Type-C
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
3.0
3.0
Vulkan
1.3
N/A
CUDA
7.5
10.3
Shader Model
6.8
N/A
📊 Benchmark
3DMark Time Spy
11,078
-
3DMark Time Spy Extreme
5,146
-
3DMark Speed Way
2,171
-
Battlefield 5 1080p
158
-
Shadow of the Tomb Raider 2160p
46
-
Cyberpunk 2077 2160p
39
-
Shadow of the Tomb Raider 1440p
85
-
Cyberpunk 2077 1440p
47
-
Shadow of the Tomb Raider 1080p
127
-
Battlefield 5 2160p
63
-
Cyberpunk 2077 1080p
67
-
Battlefield 5 1440p
114
-
GTA 5 2160p
106
-
GTA 5 1440p
108
-
GTA 5 1080p
180
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