AMD Radeon HD 6870 1600SP Edition vs AMD Radeon RX 6650 XT

VS

AMD Radeon HD 6870 1600SP Edition

AMD Radeon RX 6650 XT

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 1600SP Edition and 8GB VRAM Radeon RX 6650 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 1600SP Edition 's Advantages

Lower TDP (175W vs 176W)

AMD Radeon RX 6650 XT 's Advantages

Released 9 years and 4 months late

Boost Clock2635MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (280.3GB/s vs 134.4GB/s)

448 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6870 1600SP Edition

2.72 TFLOPS

Radeon RX 6650 XT +296%

10.79 TFLOPS

Radeon HD 6870 1600SP Edition

VS

Radeon RX 6650 XT

Graphics Card

Jan 2013

Release Date

May 2022

Northern Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

2055 MHz

-

Boost Clock

2635 MHz

1050 MHz

Memory Clock

2190 MHz

Memory

1024MB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

128bit

134.4GB/s

Bandwidth

280.3GB/s

Render Config

20

Compute Units

32

-

1600

Shading Units

2048

80

TMUs

128

32

ROPs

64

-

RT Cores

32

8 KB (per CU)

L1 Cache

128 KB per Array

512 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

27.20 GPixel/s

Pixel Rate

168.6 GPixel/s

68.00 GTexel/s

Texture Rate

337.3 GTexel/s

-

FP16 (half)

21.59 TFLOPS

2.720 TFLOPS

FP32 (float)

10.79 TFLOPS

544.0 GFLOPS

FP64 (double)

674.6 GFLOPS

Board Design

175W

TDP

176W

450 W

Suggested PSU

450 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

2x 6-pin

Power Connectors

1x 8-pin

Graphics Processor

Cypress

GPU Name

Navi 23

Cypress XT (215-0735033)

GPU Variant

Navi 23 KXT (215-130000136)

TeraScale 2

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

7 nm

2.154 billion

Transistors

11.06 billion

334 mm²

Die Size

237 mm²

Graphics Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.3

-

5.0

Shader Model

6.5

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