NVIDIA GeForce RTX 3080 Ti 20 GB vs AMD Radeon HD 6850

VS

NVIDIA GeForce RTX 3080 Ti 20 GB AMD Radeon HD 6850

We compared two Desktop platform GPUs: 20GB VRAM GeForce RTX 3080 Ti 20 GB and 1024MB VRAM Radeon HD 6850 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 11 years and 3 months late

Boost Clock1665MHz

More VRAM (20GB vs 1GB)

Larger VRAM bandwidth (760.3GB/s vs 128.0GB/s)

9280 additional rendering cores

AMD Radeon HD 6850 's Advantages

Lower TDP (127W vs 350W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Ti 20 GB +2191%

34.1 TFLOPS

Radeon HD 6850

1.488 TFLOPS

GeForce RTX 3080 Ti 20 GB

VS

Radeon HD 6850

Graphics Card

Jan 2022

Release Date

Oct 2010

GeForce 30

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1335 MHz

Base Clock

-

1665 MHz

Boost Clock

-

1188 MHz

Memory Clock

1000 MHz

Memory

20GB

Memory Size

1024MB

GDDR6X

Memory Type

GDDR5

320bit

Memory Bus

256bit

760.3GB/s

Bandwidth

128.0GB/s

Render Config

80

SM Count

-

Compute Units

12

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

24.80 GPixel/s

532.8 GTexel/s

Texture Rate

37.20 GTexel/s

34.10 TFLOPS

FP16 (half)

-

34.10 TFLOPS

FP32 (float)

1488 GFLOPS

532.8 GFLOPS

FP64 (double)

-

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

Board Design

350W

TDP

127W

750 W

Suggested PSU

300 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

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

1x 12-pin

Power Connectors

1x 6-pin

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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