AMD Radeon RX 6700 vs AMD Radeon HD 6870 1600SP Edition

VS

AMD Radeon RX 6700

AMD Radeon HD 6870 1600SP Edition

We compared two Desktop platform GPUs: 10GB VRAM Radeon RX 6700 and 1024MB VRAM Radeon HD 6870 1600SP Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6700 's Advantages

Released 8 years and 5 months late

Boost Clock2450MHz

More VRAM (10GB vs 1024GB)

Larger VRAM bandwidth (320.0GB/s vs 134.4GB/s)

704 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6700 +315%

11.29 TFLOPS

Radeon HD 6870 1600SP Edition

2.72 TFLOPS

Radeon RX 6700

VS

Radeon HD 6870 1600SP Edition

Graphics Card

Jun 2021

Release Date

Jan 2013

Navi II

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1941 MHz

Base Clock

-

2450 MHz

Boost Clock

-

2000 MHz

Memory Clock

1050 MHz

Memory

10GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

160bit

Memory Bus

256bit

320.0GB/s

Bandwidth

134.4GB/s

Render Config

36

Compute Units

20

-

2304

Shading Units

1600

144

TMUs

80

64

ROPs

32

-

36

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

3 MB

L2 Cache

512 KB

80 MB

L3 Cache

-

Theoretical Performance

156.8 GPixel/s

Pixel Rate

27.20 GPixel/s

352.8 GTexel/s

Texture Rate

68.00 GTexel/s

22.58 TFLOPS

FP16 (half)

-

11.29 TFLOPS

FP32 (float)

2.720 TFLOPS

705.6 GFLOPS

FP64 (double)

544.0 GFLOPS

Board Design

175W

TDP

175W

450 W

Suggested PSU

450 W

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

Outputs

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

1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Navi 22

GPU Name

Cypress

Navi 22 XTL

GPU Variant

Cypress XT (215-0735033)

RDNA 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

7 nm

Process Size

40 nm

17.2 billion

Transistors

2.154 billion

335 mm²

Die Size

334 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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