AMD Radeon HD 6870M vs AMD Radeon RX 6700M

VS

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

Main Differences

AMD Radeon HD 6870M 's Advantages

Lower TDP (50W vs 135W)

AMD Radeon RX 6700M 's Advantages

Released 10 years and 4 months late

Boost Clock2400MHz

More VRAM (10GB vs 1GB)

Larger VRAM bandwidth (320.0GB/s vs 64.00GB/s)

1504 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6870M

1.08 TFLOPS

Radeon RX 6700M +924%

11.06 TFLOPS

Radeon HD 6870M

VS

Radeon RX 6700M

Graphics Card

Jan 2011

Release Date

May 2021

Vancouver

Generation

Mobility Radeon

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1489 MHz

-

Boost Clock

2400 MHz

1000 MHz

Memory Clock

2000 MHz

Memory

1024MB

Memory Size

10GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

160bit

64.00GB/s

Bandwidth

320.0GB/s

Render Config

-

SM Count

-

10

Compute Units

36

800

Shading Units

2304

40

TMUs

144

16

ROPs

64

-

Tensor Cores

-

RT Cores

36

8 KB (per CU)

L1 Cache

128 KB per Array

256 KB

L2 Cache

3 MB

Theoretical Performance

10.80 GPixel/s

Pixel Rate

153.6 GPixel/s

27.00 GTexel/s

Texture Rate

345.6 GTexel/s

-

FP16 (half)

22.12 TFLOPS

1080 GFLOPS

FP32 (float)

11.06 TFLOPS

-

FP64 (double)

691.2 GFLOPS

Graphics Processor

Granville

GPU Name

Navi 22

Granville XT (216-0769024)

GPU Variant

Navi 22

TeraScale 2

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

7 nm

1.04 billion

Transistors

17.2 billion

166 mm²

Die Size

335 mm²

Board Design

50W

TDP

135W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

None

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

-

CUDA

-

5.0

Shader Model

6.5

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