AMD Radeon HD 6970M vs NVIDIA GeForce 845M

VS

AMD Radeon HD 6970M

NVIDIA GeForce 845M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6970M and 2GB VRAM GeForce 845M 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 40.10GB/s)

576 additional rendering cores

NVIDIA GeForce 845M 's Advantages

Released 4 years and 7 months late

Boost Clock1176MHz

More VRAM (2GB vs 1024GB)

Lower TDP (33W vs 75W)

Score

Benchmark

FP32 (float)

Radeon HD 6970M +44%

1.306 TFLOPS

GeForce 845M

0.903 TFLOPS

Radeon HD 6970M

VS

GeForce 845M

Graphics Card

Jan 2011

Release Date

Aug 2015

Vancouver

Generation

GeForce 800M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1071 MHz

-

Boost Clock

1176 MHz

900 MHz

Memory Clock

1253 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

64bit

115.2GB/s

Bandwidth

40.10GB/s

Render Config

12

Compute Units

-

960

Shading Units

384

48

TMUs

32

ROPs

16

-

8 KB (per CU)

L1 Cache

64 KB (per SMM)

512 KB

L2 Cache

1024 KB

-

Theoretical Performance

21.76 GPixel/s

Pixel Rate

18.82 GPixel/s

32.64 GTexel/s

Texture Rate

37.63 GTexel/s

-

1306 GFLOPS

FP32 (float)

903.2 GFLOPS

-

FP64 (double)

28.22 GFLOPS

Board Design

75W

TDP

33W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Blackcomb

GPU Name

GM108

Blackcomb XT (216-0811000)

GPU Variant

-

TeraScale 2

Architecture

Maxwell

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

Unknown

212 mm²

Die Size

Unknown

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

5.0

Shader Model

5.1

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