AMD Radeon RX 6500 XT vs AMD Radeon HD 6870

VS

AMD Radeon RX 6500 XT

AMD Radeon HD 6870

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6500 XT and 1024MB VRAM Radeon HD 6870 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 11 years and 3 months late

Boost Clock2815MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (143.9GB/s vs 134.4GB/s)

Lower TDP (107W vs 151W)

AMD Radeon HD 6870 's Advantages

96 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6500 XT +185%

5.765 TFLOPS

Radeon HD 6870

2.016 TFLOPS

Radeon RX 6500 XT

VS

Radeon HD 6870

Graphics Card

Jan 2022

Release Date

Oct 2010

Navi II

Generation

Northern Islands

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

1050 MHz

Memory

4GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

64bit

Memory Bus

256bit

143.9GB/s

Bandwidth

134.4GB/s

Render Config

16

Compute Units

14

-

1024

Shading Units

1120

64

TMUs

56

32

ROPs

32

-

16

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

512 KB

16 MB

L3 Cache

-

Theoretical Performance

90.08 GPixel/s

Pixel Rate

28.80 GPixel/s

180.2 GTexel/s

Texture Rate

50.40 GTexel/s

11.53 TFLOPS

FP16 (half)

-

5.765 TFLOPS

FP32 (float)

2.016 TFLOPS

360.3 GFLOPS

FP64 (double)

-

Board Design

107W

TDP

151W

300 W

Suggested PSU

450 W

1x HDMI 2.1 1x DisplayPort 1.4a

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Navi 24

GPU Name

Barts

Navi 24 XT (215-135000006)

GPU Variant

Barts XT (215-0798000)

RDNA 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

6 nm

Process Size

40 nm

5.4 billion

Transistors

1.7 billion

107 mm²

Die Size

255 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.2

OpenCL

1.2

1.3

Vulkan

N/A

-

6.6

Shader Model

5.0

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