NVIDIA GeForce RTX 3070 vs AMD Radeon HD 6870

VS

NVIDIA GeForce RTX 3070

AMD Radeon HD 6870

We compared two Desktop platform GPUs: 8GB VRAM GeForce RTX 3070 and 1024MB VRAM Radeon HD 6870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3070 's Advantages

Released 9 years and 11 months late

Boost Clock1725MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (448.0GB/s vs 134.4GB/s)

4768 additional rendering cores

AMD Radeon HD 6870 's Advantages

Lower TDP (151W vs 220W)

Score

Benchmark

FP32 (float)

GeForce RTX 3070 +907%

20.31 TFLOPS

Radeon HD 6870

2.016 TFLOPS

GeForce RTX 3070

VS

Radeon HD 6870

Graphics Card

Sep 2020

Release Date

Oct 2010

GeForce 30

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1500 MHz

Base Clock

-

1725 MHz

Boost Clock

-

1750 MHz

Memory Clock

1050 MHz

Memory

8GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

448.0GB/s

Bandwidth

134.4GB/s

Render Config

-

Compute Units

14

46

SM Count

-

5888

Shading Units

1120

184

TMUs

56

96

ROPs

32

184

Tensor Cores

-

46

RT Cores

-

128 KB (per SM)

L1 Cache

8 KB (per CU)

4 MB

L2 Cache

512 KB

-

Theoretical Performance

165.6 GPixel/s

Pixel Rate

28.80 GPixel/s

317.4 GTexel/s

Texture Rate

50.40 GTexel/s

20.31 TFLOPS

FP16 (half)

-

20.31 TFLOPS

FP32 (float)

2.016 TFLOPS

317.4 GFLOPS

FP64 (double)

-

Board Design

220W

TDP

151W

550 W

Suggested PSU

450 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

2x 6-pin

Graphics Processor

GA104

GPU Name

Barts

GA104-300-A1

GPU Variant

Barts XT (215-0798000)

Ampere

Architecture

TeraScale 2

Samsung

Foundry

TSMC

8 nm

Process Size

40 nm

17.4 billion

Transistors

1.7 billion

392 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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