ATI Radeon HD 4860 vs AMD Radeon RX 6600 XT

VS

ATI Radeon HD 4860

AMD Radeon RX 6600 XT

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4860 and 8GB VRAM Radeon RX 6600 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4860 's Advantages

Lower TDP (130W vs 160W)

AMD Radeon RX 6600 XT 's Advantages

Released 11 years and 10 months late

Boost Clock2589MHz

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (256.0GB/s vs 96.00GB/s)

1408 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4860

0.896 TFLOPS

Radeon RX 6600 XT +1083%

10.6 TFLOPS

Radeon HD 4860

VS

Radeon RX 6600 XT

Graphics Card

Sep 2009

Release Date

Jul 2021

Radeon R700

Generation

Navi II

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

1968 MHz

-

Boost Clock

2589 MHz

750 MHz

Memory Clock

2000 MHz

Memory

512MB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

128bit

96.00GB/s

Bandwidth

256.0GB/s

Render Config

8

Compute Units

32

-

640

Shading Units

2048

32

TMUs

128

16

ROPs

64

-

RT Cores

32

16 KB (per CU)

L1 Cache

128 KB per Array

256 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

11.20 GPixel/s

Pixel Rate

165.7 GPixel/s

22.40 GTexel/s

Texture Rate

331.4 GTexel/s

-

FP16 (half)

21.21 TFLOPS

896.0 GFLOPS

FP32 (float)

10.60 TFLOPS

179.2 GFLOPS

FP64 (double)

662.8 GFLOPS

Board Design

130W

TDP

160W

300 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

2x 6-pin

Power Connectors

1x 8-pin

Graphics Processor

RV790

GPU Name

Navi 23

RV790 GT

GPU Variant

Navi 23 XT (215-130000006)

TeraScale

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

7 nm

0.959 billion

Transistors

11.06 billion

282 mm²

Die Size

237 mm²

Graphics Features

10.1 (10_1)

DirectX

12 Ultimate (12_2)

3.3

OpenGL

4.6

1.1

OpenCL

2.1

N/A

Vulkan

1.3

-

4.1

Shader Model

6.7

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