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GPU Comparison
NVIDIA GeForce RTX 3080 Ti vs NVIDIA GeForce RTX 3080 Ti 20 GB
NVIDIA GeForce RTX 3080 Ti vs NVIDIA GeForce RTX 3080 Ti 20 GB
VS
NVIDIA GeForce RTX 3080 Ti
NVIDIA GeForce RTX 3080 Ti 20 GB
We compared two Desktop platform GPUs: 12GB VRAM GeForce RTX 3080 Ti and 20GB VRAM GeForce RTX 3080 Ti 20 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce RTX 3080 Ti 's Advantages
Larger VRAM bandwidth (912.4GB/s vs 760.3GB/s)
NVIDIA GeForce RTX 3080 Ti 20 GB 's Advantages
Released 8 months late
More VRAM (20GB vs 12GB)
Score
Benchmark
FP32 (float)
GeForce RTX 3080 Ti
34.1 TFLOPS
GeForce RTX 3080 Ti 20 GB
34.1 TFLOPS
GeForce RTX 3080 Ti
VS
GeForce RTX 3080 Ti 20 GB
Graphics Card
May 2021
Release Date
Jan 2022
GeForce 30
Generation
GeForce 30
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
1365 MHz
Base Clock
1335 MHz
1665 MHz
Boost Clock
1665 MHz
1188 MHz
Memory Clock
1188 MHz
Memory
12GB
Memory Size
20GB
GDDR6X
Memory Type
GDDR6X
384bit
Memory Bus
320bit
912.4GB/s
Bandwidth
760.3GB/s
Render Config
80
SM Count
80
-
Compute Units
-
10240
Shading Units
10240
320
TMUs
320
112
ROPs
112
320
Tensor Cores
320
80
RT Cores
80
128 KB (per SM)
L1 Cache
128 KB (per SM)
6 MB
L2 Cache
6 MB
Theoretical Performance
186.5 GPixel/s
Pixel Rate
186.5 GPixel/s
532.8 GTexel/s
Texture Rate
532.8 GTexel/s
34.10 TFLOPS
FP16 (half)
34.10 TFLOPS
34.10 TFLOPS
FP32 (float)
34.10 TFLOPS
532.8 GFLOPS
FP64 (double)
532.8 GFLOPS
Graphics Processor
GA102
GPU Name
GA102
GA102-225-A1
GPU Variant
GA102-225-A1
Ampere
Architecture
Ampere
Samsung
Foundry
Samsung
8 nm
Process Size
8 nm
28.3 billion
Transistors
28.3 billion
628 mm²
Die Size
628 mm²
Board Design
350W
TDP
350W
750 W
Suggested PSU
750 W
1x HDMI 2.1 3x DisplayPort 1.4a
Outputs
1x HDMI 2.1 3x DisplayPort 1.4a
1x 12-pin
Power Connectors
1x 12-pin
Graphics Features
12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.3
8.6
CUDA
8.6
6.6
Shader Model
6.6
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