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

VS

AMD Radeon HD 6870 1600SP Edition

AMD Radeon RX 6700

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 1600SP Edition and 10GB VRAM Radeon RX 6700 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 HD 6870 1600SP Edition

2.72 TFLOPS

Radeon RX 6700 +315%

11.29 TFLOPS

Radeon HD 6870 1600SP Edition

VS

Radeon RX 6700

Graphics Card

Jan 2013

Release Date

Jun 2021

Northern Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1941 MHz

-

Boost Clock

2450 MHz

1050 MHz

Memory Clock

2000 MHz

Memory

1024MB

Memory Size

10GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

160bit

134.4GB/s

Bandwidth

320.0GB/s

Render Config

20

Compute Units

36

-

1600

Shading Units

2304

80

TMUs

144

32

ROPs

64

-

RT Cores

36

8 KB (per CU)

L1 Cache

128 KB per Array

512 KB

L2 Cache

3 MB

-

L3 Cache

80 MB

Theoretical Performance

27.20 GPixel/s

Pixel Rate

156.8 GPixel/s

68.00 GTexel/s

Texture Rate

352.8 GTexel/s

-

FP16 (half)

22.58 TFLOPS

2.720 TFLOPS

FP32 (float)

11.29 TFLOPS

544.0 GFLOPS

FP64 (double)

705.6 GFLOPS

Board Design

175W

TDP

175W

450 W

Suggested PSU

450 W

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

Outputs

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

2x 6-pin

Power Connectors

1x 8-pin

Graphics Processor

Cypress

GPU Name

Navi 22

Cypress XT (215-0735033)

GPU Variant

Navi 22 XTL

TeraScale 2

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

7 nm

2.154 billion

Transistors

17.2 billion

334 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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