AMD Radeon RX 6650 XT vs ATI Radeon HD 4870

VS

AMD Radeon RX 6650 XT

ATI Radeon HD 4870

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6650 XT and 512MB VRAM Radeon HD 4870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6650 XT 's Advantages

Released 13 years and 11 months late

Boost Clock2635MHz

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (280.3GB/s vs 115.2GB/s)

1248 additional rendering cores

ATI Radeon HD 4870 's Advantages

Lower TDP (150W vs 176W)

Score

Benchmark

FP32 (float)

Radeon RX 6650 XT +799%

10.79 TFLOPS

Radeon HD 4870

1.2 TFLOPS

Radeon RX 6650 XT

VS

Radeon HD 4870

Graphics Card

May 2022

Release Date

Jun 2008

Navi II

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

2055 MHz

Base Clock

-

2635 MHz

Boost Clock

-

2190 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

512MB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

256bit

280.3GB/s

Bandwidth

115.2GB/s

Render Config

32

Compute Units

10

-

2048

Shading Units

800

128

TMUs

40

64

ROPs

16

-

32

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

32 MB

L3 Cache

-

Theoretical Performance

168.6 GPixel/s

Pixel Rate

12.00 GPixel/s

337.3 GTexel/s

Texture Rate

30.00 GTexel/s

21.59 TFLOPS

FP16 (half)

-

10.79 TFLOPS

FP32 (float)

1200 GFLOPS

674.6 GFLOPS

FP64 (double)

240.0 GFLOPS

Board Design

176W

TDP

150W

450 W

Suggested PSU

450 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

2x DVI 1x S-Video

1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Navi 23

GPU Name

RV770

Navi 23 KXT (215-130000136)

GPU Variant

RV770 XT (215-0669049)

RDNA 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

7 nm

Process Size

55 nm

11.06 billion

Transistors

0.956 billion

237 mm²

Die Size

256 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

1.1

1.3

Vulkan

N/A

-

6.5

Shader Model

4.1

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