AMD Radeon HD 6970M vs AMD Radeon HD 8790M

VS

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6970M and 2GB VRAM Radeon HD 8790M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6970M 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 64.00GB/s)

576 additional rendering cores

AMD Radeon HD 8790M 's Advantages

Released 2 years and 3 months late

Boost Clock900MHz

More VRAM (2GB vs 1GB)

Score

Benchmark

FP32 (float)

Radeon HD 6970M +89%

1.306 TFLOPS

Radeon HD 8790M

0.691 TFLOPS

Radeon HD 6970M

VS

Radeon HD 8790M

Graphics Card

Jan 2011

Release Date

Apr 2013

Vancouver

Generation

Solar System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-A (3.0)

Clock Speeds

-

Base Clock

850 MHz

-

Boost Clock

900 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

64.00GB/s

Render Config

-

SM Count

-

12

Compute Units

6

960

Shading Units

384

48

TMUs

24

32

ROPs

8

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

21.76 GPixel/s

Pixel Rate

7.200 GPixel/s

32.64 GTexel/s

Texture Rate

21.60 GTexel/s

-

FP16 (half)

-

1306 GFLOPS

FP32 (float)

691.2 GFLOPS

-

FP64 (double)

43.20 GFLOPS

Graphics Processor

Blackcomb

GPU Name

Mars

Blackcomb XT (216-0811000)

GPU Variant

Mars M2 XTX (216-0842036)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

0.95 billion

212 mm²

Die Size

77 mm²

Board Design

75W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

2.1 (1.2)

N/A

Vulkan

1.2.170

-

CUDA

-

5.0

Shader Model

6.5 (5.1)

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