AMD Radeon RX 6750 XT vs ATI Radeon HD 3870

VS

AMD Radeon RX 6750 XT

ATI Radeon HD 3870

We compared two Desktop platform GPUs: 12GB VRAM Radeon RX 6750 XT and 512MB VRAM Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6750 XT 's Advantages

Released 14 years and 4 months late

Boost Clock2600MHz

More VRAM (12GB vs 512GB)

Larger VRAM bandwidth (432.0GB/s vs 72.06GB/s)

2240 additional rendering cores

ATI Radeon HD 3870 's Advantages

Lower TDP (106W vs 250W)

Score

Benchmark

FP32 (float)

Radeon RX 6750 XT +2578%

13.31 TFLOPS

Radeon HD 3870

0.497 TFLOPS

Radeon RX 6750 XT

VS

Radeon HD 3870

Graphics Card

Mar 2022

Release Date

Nov 2007

Navi II

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2150 MHz

Base Clock

-

2600 MHz

Boost Clock

-

2250 MHz

Memory Clock

1126 MHz

Memory

12GB

Memory Size

512MB

GDDR6

Memory Type

GDDR4

192bit

Memory Bus

256bit

432.0GB/s

Bandwidth

72.06GB/s

Render Config

40

Compute Units

4

-

2560

Shading Units

320

160

TMUs

16

64

ROPs

16

-

40

RT Cores

-

128 KB per Array

L1 Cache

-

3 MB

L2 Cache

256 KB

96 MB

L3 Cache

-

Theoretical Performance

166.4 GPixel/s

Pixel Rate

12.43 GPixel/s

416.0 GTexel/s

Texture Rate

12.43 GTexel/s

26.62 TFLOPS

FP16 (half)

-

13.31 TFLOPS

FP32 (float)

497.3 GFLOPS

832.0 GFLOPS

FP64 (double)

99.46 GFLOPS

Board Design

250W

TDP

106W

600 W

Suggested PSU

300 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Navi 22

GPU Name

RV670

Navi 22 KXT (215-127000144)

GPU Variant

RV670 XT (215-0708005)

RDNA 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

7 nm

Process Size

55 nm

17.2 billion

Transistors

0.666 billion

335 mm²

Die Size

192 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

2.1

OpenCL

N/A

1.3

Vulkan

N/A

-

6.5

Shader Model

4.1

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