ATI Radeon HD 3870 AGP vs AMD Radeon RX 6700

VS

ATI Radeon HD 3870 AGP

AMD Radeon RX 6700

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 AGP and 10GB VRAM Radeon RX 6700 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3870 AGP 's Advantages

Lower TDP (106W vs 175W)

AMD Radeon RX 6700 's Advantages

Boost Clock2450MHz

More VRAM (10GB vs 512GB)

Larger VRAM bandwidth (320.0GB/s vs 72.06GB/s)

1984 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 3870 AGP

0.497 TFLOPS

Radeon RX 6700 +2171%

11.29 TFLOPS

Radeon HD 3870 AGP

VS

Radeon RX 6700

Graphics Card

Unknown

Release Date

Jun 2021

Radeon R600

Generation

Navi II

Desktop

Type

Desktop

AGP 8x

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1941 MHz

-

Boost Clock

2450 MHz

1126 MHz

Memory Clock

2000 MHz

Memory

512MB

Memory Size

10GB

GDDR4

Memory Type

GDDR6

256bit

Memory Bus

160bit

72.06GB/s

Bandwidth

320.0GB/s

Render Config

4

Compute Units

36

-

320

Shading Units

2304

16

TMUs

144

16

ROPs

64

-

RT Cores

36

-

L1 Cache

128 KB per Array

256 KB

L2 Cache

3 MB

-

L3 Cache

80 MB

Theoretical Performance

12.43 GPixel/s

Pixel Rate

156.8 GPixel/s

12.43 GTexel/s

Texture Rate

352.8 GTexel/s

-

FP16 (half)

22.58 TFLOPS

497.3 GFLOPS

FP32 (float)

11.29 TFLOPS

99.46 GFLOPS

FP64 (double)

705.6 GFLOPS

Board Design

106W

TDP

175W

300 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

1x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

RV670

GPU Name

Navi 22

RV670 XT (215-0708005)

GPU Variant

Navi 22 XTL

TeraScale

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

7 nm

0.666 billion

Transistors

17.2 billion

192 mm²

Die Size

335 mm²

Graphics Features

10.1 (10_1)

DirectX

12 Ultimate (12_2)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

2.1

N/A

Vulkan

1.3

-

4.1

Shader Model

6.5

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