AMD Radeon RX 7700 XT vs ATI Radeon HD 3870

VS

AMD Radeon RX 7700 XT

ATI Radeon HD 3870

We compared two Desktop platform GPUs: 12GB VRAM Radeon RX 7700 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 7700 XT 's Advantages

Released 15 years and 9 months late

Boost Clock2544MHz

More VRAM (12GB vs 512GB)

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

3136 additional rendering cores

ATI Radeon HD 3870 's Advantages

Lower TDP (106W vs 245W)

Score

Benchmark

FP32 (float)

Radeon RX 7700 XT +6976%

35.17 TFLOPS

Radeon HD 3870

0.497 TFLOPS

Radeon RX 7700 XT

VS

Radeon HD 3870

Graphics Card

Aug 2023

Release Date

Nov 2007

Navi III

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1435 MHz

Base Clock

-

2544 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

54

Compute Units

4

-

3456

Shading Units

320

216

TMUs

16

96

ROPs

16

-

54

RT Cores

-

128 KB per Array

L1 Cache

-

2 MB

L2 Cache

256 KB

48 MB

L3 Cache

-

Theoretical Performance

244.2 GPixel/s

Pixel Rate

12.43 GPixel/s

549.5 GTexel/s

Texture Rate

12.43 GTexel/s

70.34 TFLOPS

FP16 (half)

-

35.17 TFLOPS

FP32 (float)

497.3 GFLOPS

1099 GFLOPS

FP64 (double)

99.46 GFLOPS

Board Design

245W

TDP

106W

550 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Navi 32

GPU Name

RV670

Navi 32 XL (215-180000076)

GPU Variant

RV670 XT (215-0708005)

RDNA 3.0

Architecture

TeraScale

TSMC

Foundry

TSMC

5 nm

Process Size

55 nm

28.1 billion

Transistors

0.666 billion

346 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)

2.2

OpenCL

N/A

1.3

Vulkan

N/A

-

6.7

Shader Model

4.1

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