AMD Radeon HD 6990M vs AMD Radeon RX 6700S

VS

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6990M and 8GB VRAM Radeon RX 6700S to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6700S 's Advantages

Released 10 years and 6 months late

Boost Clock2000MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (224.0GB/s vs 115.2GB/s)

672 additional rendering cores

Lower TDP (80W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 6990M

1.602 TFLOPS

Radeon RX 6700S +347%

7.168 TFLOPS

Radeon HD 6990M

VS

Radeon RX 6700S

Graphics Card

Jul 2011

Release Date

Jan 2022

Vancouver

Generation

Mobility Radeon

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

1700 MHz

-

Boost Clock

2000 MHz

900 MHz

Memory Clock

1750 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

224.0GB/s

Render Config

-

SM Count

-

14

Compute Units

28

1120

Shading Units

1792

56

TMUs

112

32

ROPs

64

-

Tensor Cores

-

RT Cores

28

8 KB (per CU)

L1 Cache

128 KB per Array

512 KB

L2 Cache

2 MB

Theoretical Performance

22.88 GPixel/s

Pixel Rate

128.0 GPixel/s

40.04 GTexel/s

Texture Rate

224.0 GTexel/s

-

FP16 (half)

14.34 TFLOPS

1.602 TFLOPS

FP32 (float)

7.168 TFLOPS

-

FP64 (double)

448.0 GFLOPS

Graphics Processor

Blackcomb

GPU Name

Navi 23

Blackcomb XTX (216-0811030)

GPU Variant

-

TeraScale 2

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

7 nm

1.7 billion

Transistors

11.06 billion

212 mm²

Die Size

237 mm²

Board Design

100W

TDP

80W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

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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