AMD Radeon RX 6600 XT vs ATI Radeon HD 4870 X2

VS

AMD Radeon RX 6600 XT

ATI Radeon HD 4870 X2

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 XT and 1024MB VRAM Radeon HD 4870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600 XT 's Advantages

Released 12 years and 11 months late

Boost Clock2589MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (256.0GB/s vs 115.2GB/s)

1248 additional rendering cores

Lower TDP (160W vs 286W)

Score

Benchmark

FP32 (float)

Radeon RX 6600 XT +783%

10.6 TFLOPS

Radeon HD 4870 X2

1.2 TFLOPS

Radeon RX 6600 XT

VS

Radeon HD 4870 X2

Graphics Card

Jul 2021

Release Date

Aug 2008

Navi II

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1968 MHz

Base Clock

-

2589 MHz

Boost Clock

-

2000 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

256bit

256.0GB/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

165.7 GPixel/s

Pixel Rate

12.00 GPixel/s

331.4 GTexel/s

Texture Rate

30.00 GTexel/s

21.21 TFLOPS

FP16 (half)

-

10.60 TFLOPS

FP32 (float)

1200 GFLOPS

662.8 GFLOPS

FP64 (double)

240.0 GFLOPS

Board Design

160W

TDP

286W

450 W

Suggested PSU

600 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

2x DVI 1x S-Video

1x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Navi 23

GPU Name

R700

Navi 23 XT (215-130000006)

GPU Variant

R700 XT (215-0669045)

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

-

6.7

Shader Model

4.1

Related GPU Comparisons

1

AMD Radeon RX 6600 XT vs AMD FirePro S9100

2

AMD Radeon RX 6600 XT vs NVIDIA GeForce RTX 2060 SUPER

3

AMD Radeon RX 6600 XT vs AMD Radeon RX 470

4

AMD Radeon RX 6600 XT vs NVIDIA GeForce 8400 GS Rev. 3

5

AMD Radeon RX 6600 XT vs ATI Radeon HD 3870

6

AMD Radeon RX 6600 XT vs AMD Radeon HD 6390

7

AMD Radeon RX 6600 XT vs ATI Radeon X1550

8

AMD Radeon RX 6600 XT vs NVIDIA GeForce GT 1030 DDR4

9

AMD Radeon RX 6600 XT vs AMD Radeon PRO V710

10

AMD Radeon RX 6600 XT vs ATI Radeon HD 5870 Eyefinity 6

Related News

1

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

2

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

3

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

4

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

5

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

6

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

7

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

8

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip

9

The Thinnest iPhone Ever! iPhone 17 Air Reportedly Enters Foxconn's NPI Stage

10

Apple Allegedly Cancels M4 Extreme, Originally Planned for Mac Pro with 64-Core CPU and 160-Core GPU