NVIDIA GeForce RTX 3080 Ti vs AMD Radeon HD 6850 X2

VS

NVIDIA GeForce RTX 3080 Ti

AMD Radeon HD 6850 X2

We compared two Desktop platform GPUs: 12GB VRAM GeForce RTX 3080 Ti and 2GB VRAM Radeon HD 6850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Ti 's Advantages

Released 9 years and 8 months late

Boost Clock1665MHz

More VRAM (12GB vs 2GB)

Larger VRAM bandwidth (912.4GB/s vs 134.4GB/s)

9280 additional rendering cores

AMD Radeon HD 6850 X2 's Advantages

Lower TDP (254W vs 350W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Ti +2120%

34.1 TFLOPS

Radeon HD 6850 X2

1.536 TFLOPS

GeForce RTX 3080 Ti

VS

Radeon HD 6850 X2

Graphics Card

May 2021

Release Date

Sep 2011

GeForce 30

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1365 MHz

Base Clock

-

1665 MHz

Boost Clock

-

1188 MHz

Memory Clock

1050 MHz

Memory

12GB

Memory Size

2GB

GDDR6X

Memory Type

GDDR5

384bit

Memory Bus

256bit

912.4GB/s

Bandwidth

134.4GB/s

Render Config

-

Compute Units

12

80

SM Count

-

10240

Shading Units

960

320

TMUs

48

112

ROPs

32

320

Tensor Cores

-

80

RT Cores

-

128 KB (per SM)

L1 Cache

8 KB (per CU)

6 MB

L2 Cache

512 KB

-

Theoretical Performance

186.5 GPixel/s

Pixel Rate

25.60 GPixel/s

532.8 GTexel/s

Texture Rate

38.40 GTexel/s

34.10 TFLOPS

FP16 (half)

-

34.10 TFLOPS

FP32 (float)

1.536 TFLOPS

532.8 GFLOPS

FP64 (double)

-

Board Design

350W

TDP

254W

750 W

Suggested PSU

600 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

1x 12-pin

Power Connectors

2x 8-pin

Graphics Processor

GA102

GPU Name

Barts

GA102-225-A1

GPU Variant

Barts PRO (215-0798006)

Ampere

Architecture

TeraScale 2

Samsung

Foundry

TSMC

8 nm

Process Size

40 nm

28.3 billion

Transistors

1.7 billion

628 mm²

Die Size

255 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

8.6

CUDA

-

6.6

Shader Model

5.0

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