AMD Radeon RX 6500 XT vs ATI Radeon HD 4855

VS

AMD Radeon RX 6500 XT

ATI Radeon HD 4855

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6500 XT and 512MB VRAM Radeon HD 4855 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6500 XT 's Advantages

Released 12 years late

Boost Clock2815MHz

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (143.9GB/s vs 115.2GB/s)

384 additional rendering cores

Lower TDP (107W vs 110W)

Score

Benchmark

FP32 (float)

Radeon RX 6500 XT +683%

5.765 TFLOPS

Radeon HD 4855

0.736 TFLOPS

Radeon RX 6500 XT

VS

Radeon HD 4855

Graphics Card

Jan 2022

Release Date

Jan 2010

Navi II

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 4.0 x4

Bus Interface

PCIe 2.0 x16

Clock Speeds

2310 MHz

Base Clock

-

2815 MHz

Boost Clock

-

2248 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

512MB

GDDR6

Memory Type

GDDR5

64bit

Memory Bus

256bit

143.9GB/s

Bandwidth

115.2GB/s

Render Config

16

Compute Units

8

-

1024

Shading Units

640

64

TMUs

32

ROPs

16

-

16

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

256 KB

16 MB

L3 Cache

-

Theoretical Performance

90.08 GPixel/s

Pixel Rate

9.200 GPixel/s

180.2 GTexel/s

Texture Rate

18.40 GTexel/s

11.53 TFLOPS

FP16 (half)

-

5.765 TFLOPS

FP32 (float)

736.0 GFLOPS

360.3 GFLOPS

FP64 (double)

147.2 GFLOPS

Board Design

107W

TDP

110W

300 W

Suggested PSU

300 W

1x HDMI 2.1 1x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Navi 24

GPU Name

RV770

Navi 24 XT (215-135000006)

GPU Variant

RV770 PRO (215-0669065)

RDNA 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

6 nm

Process Size

55 nm

5.4 billion

Transistors

0.956 billion

107 mm²

Die Size

256 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.2

OpenCL

1.1

1.3

Vulkan

N/A

-

6.6

Shader Model

4.1

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