AMD Radeon RX 6700 XT vs AMD Radeon HD 6670

VS

AMD Radeon RX 6700 XT

AMD Radeon HD 6670

We compared two Desktop platform GPUs: 12GB VRAM Radeon RX 6700 XT and 1024MB VRAM Radeon HD 6670 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6700 XT 's Advantages

Released 9 years and 11 months late

Boost Clock2581MHz

More VRAM (12GB vs 1024GB)

Larger VRAM bandwidth (384.0GB/s vs 64.00GB/s)

2080 additional rendering cores

AMD Radeon HD 6670 's Advantages

Lower TDP (66W vs 230W)

Score

Benchmark

FP32 (float)

Radeon RX 6700 XT +1620%

13.21 TFLOPS

Radeon HD 6670

0.768 TFLOPS

Radeon RX 6700 XT

VS

Radeon HD 6670

Graphics Card

Mar 2021

Release Date

Apr 2011

Navi II

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2321 MHz

Base Clock

-

2581 MHz

Boost Clock

-

2000 MHz

Memory Clock

1000 MHz

Memory

12GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

192bit

Memory Bus

128bit

384.0GB/s

Bandwidth

64.00GB/s

Render Config

40

Compute Units

6

-

2560

Shading Units

480

160

TMUs

24

64

ROPs

8

-

40

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

3 MB

L2 Cache

256 KB

96 MB

L3 Cache

-

Theoretical Performance

165.2 GPixel/s

Pixel Rate

6.400 GPixel/s

413.0 GTexel/s

Texture Rate

19.20 GTexel/s

26.43 TFLOPS

FP16 (half)

-

13.21 TFLOPS

FP32 (float)

768.0 GFLOPS

825.9 GFLOPS

FP64 (double)

-

Board Design

230W

TDP

66W

550 W

Suggested PSU

250 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Navi 22

GPU Name

Turks

Navi 22 XT (215-127000006)

GPU Variant

Turks XT (215-0803000)

RDNA 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

7 nm

Process Size

40 nm

17.2 billion

Transistors

0.716 billion

335 mm²

Die Size

118 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

1.3

Vulkan

N/A

-

6.5

Shader Model

5.0

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