Home GPU Comparison NVIDIA GeForce RTX 3090 vs NVIDIA GeForce RTX 3080 Ti 20 GB

NVIDIA GeForce RTX 3090 vs NVIDIA GeForce RTX 3080 Ti 20 GB

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 3090 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 3090 's Advantages
Boost Clock has increased by 2% (1695MHz vs 1665MHz)
More VRAM (24GB vs 20GB)
Larger VRAM bandwidth (936.2GB/s vs 760.3GB/s)
256 additional rendering cores
NVIDIA GeForce RTX 3080 Ti 20 GB 's Advantages
Released 1 years and 4 months late

Score

Benchmark

FP32 (float)
GeForce RTX 3090 +4%
35.58 TFLOPS
GeForce RTX 3080 Ti 20 GB
34.1 TFLOPS
VS

Graphics Card

Sep 2020
Release Date
Jan 2022
GeForce 30
Generation
GeForce 30
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 4.0 x16

Clock Speeds

1395 MHz
Base Clock
1335 MHz
1695 MHz
Boost Clock
1665 MHz
1219 MHz
Memory Clock
1188 MHz

Memory

24GB
Memory Size
20GB
GDDR6X
Memory Type
GDDR6X
384bit
Memory Bus
320bit
936.2GB/s
Bandwidth
760.3GB/s

Render Config

82
SM Count
80
-
Compute Units
-
10496
Shading Units
10240
328
TMUs
320
112
ROPs
112
328
Tensor Cores
320
82
RT Cores
80
128 KB (per SM)
L1 Cache
128 KB (per SM)
6 MB
L2 Cache
6 MB

Theoretical Performance

189.8 GPixel/s
Pixel Rate
186.5 GPixel/s
556.0 GTexel/s
Texture Rate
532.8 GTexel/s
35.58 TFLOPS
FP16 (half)
34.10 TFLOPS
35.58 TFLOPS
FP32 (float)
34.10 TFLOPS
556.0 GFLOPS
FP64 (double)
532.8 GFLOPS

Graphics Processor

GA102
GPU Name
GA102
GA102-300-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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