AMD Radeon HD 6850 X2 vs AMD Radeon RX 6700 XT

VS

AMD Radeon HD 6850 X2

AMD Radeon RX 6700 XT

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6850 X2 and 12GB VRAM Radeon RX 6700 XT 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 6 months late

Boost Clock2581MHz

More VRAM (12GB vs 2GB)

Larger VRAM bandwidth (384.0GB/s vs 134.4GB/s)

1600 additional rendering cores

Lower TDP (230W vs 254W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 X2

1.536 TFLOPS

Radeon RX 6700 XT +760%

13.21 TFLOPS

Radeon HD 6850 X2

VS

Radeon RX 6700 XT

Graphics Card

Sep 2011

Release Date

Mar 2021

Northern Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2321 MHz

-

Boost Clock

2581 MHz

1050 MHz

Memory Clock

2000 MHz

Memory

2GB

Memory Size

12GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

192bit

134.4GB/s

Bandwidth

384.0GB/s

Render Config

12

Compute Units

40

-

960

Shading Units

2560

48

TMUs

160

32

ROPs

64

-

RT Cores

40

8 KB (per CU)

L1 Cache

128 KB per Array

512 KB

L2 Cache

3 MB

-

L3 Cache

96 MB

Theoretical Performance

25.60 GPixel/s

Pixel Rate

165.2 GPixel/s

38.40 GTexel/s

Texture Rate

413.0 GTexel/s

-

FP16 (half)

26.43 TFLOPS

1.536 TFLOPS

FP32 (float)

13.21 TFLOPS

-

FP64 (double)

825.9 GFLOPS

Board Design

254W

TDP

230W

600 W

Suggested PSU

550 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Barts

GPU Name

Navi 22

Barts PRO (215-0798006)

GPU Variant

Navi 22 XT (215-127000006)

TeraScale 2

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

7 nm

1.7 billion

Transistors

17.2 billion

255 mm²

Die Size

335 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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