NVIDIA GeForce RTX 3080 Ti 20 GB vs AMD Radeon R9 255 OEM

VS

NVIDIA GeForce RTX 3080 Ti 20 GB

AMD Radeon R9 255 OEM

We compared two Desktop platform GPUs: 20GB VRAM GeForce RTX 3080 Ti 20 GB and 2GB VRAM Radeon R9 255 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Ti 20 GB 's Advantages

Released 8 years and 1 months late

Boost Clock has increased by 79% (1665MHz vs 930MHz)

More VRAM (20GB vs 2GB)

Larger VRAM bandwidth (760.3GB/s vs 73.60GB/s)

9728 additional rendering cores

AMD Radeon R9 255 OEM 's Advantages

Lower TDP (65W vs 350W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Ti 20 GB +3481%

34.1 TFLOPS

Radeon R9 255 OEM

0.952 TFLOPS

GeForce RTX 3080 Ti 20 GB

VS

Radeon R9 255 OEM

Graphics Card

Jan 2022

Release Date

Dec 2013

GeForce 30

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1335 MHz

Base Clock

900 MHz

1665 MHz

Boost Clock

930 MHz

1188 MHz

Memory Clock

1150 MHz

Memory

20GB

Memory Size

2GB

GDDR6X

Memory Type

GDDR5

320bit

Memory Bus

128bit

760.3GB/s

Bandwidth

73.60GB/s

Render Config

-

Compute Units

8

80

SM Count

-

10240

Shading Units

512

320

TMUs

32

112

ROPs

16

320

Tensor Cores

-

80

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

256 KB

-

Theoretical Performance

186.5 GPixel/s

Pixel Rate

14.88 GPixel/s

532.8 GTexel/s

Texture Rate

29.76 GTexel/s

34.10 TFLOPS

FP16 (half)

-

34.10 TFLOPS

FP32 (float)

952.3 GFLOPS

532.8 GFLOPS

FP64 (double)

59.52 GFLOPS

Board Design

350W

TDP

65W

750 W

Suggested PSU

250 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

No outputs

1x 12-pin

Power Connectors

1x 6-pin

Graphics Processor

GA102

GPU Name

Cape Verde

GA102-225-A1

GPU Variant

Cape Verde PRX

Ampere

Architecture

GCN 1.0

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

28.3 billion

Transistors

1.5 billion

628 mm²

Die Size

123 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.3

Vulkan

1.2

8.6

CUDA

-

6.6

Shader Model

5.1

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