AMD Radeon HD 7970M vs NVIDIA GeForce 845M

VS

AMD Radeon HD 7970M

NVIDIA GeForce 845M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7970M 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 7970M 's Advantages

Larger VRAM bandwidth (153.6GB/s vs 40.10GB/s)

896 additional rendering cores

NVIDIA GeForce 845M 's Advantages

Released 3 years and 4 months late

Boost Clock1176MHz

Lower TDP (33W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 7970M +140%

2.176 TFLOPS

GeForce 845M

0.903 TFLOPS

Radeon HD 7970M

VS

GeForce 845M

Graphics Card

Apr 2012

Release Date

Aug 2015

London

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

1200 MHz

Memory Clock

1253 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

64bit

153.6GB/s

Bandwidth

40.10GB/s

Render Config

20

Compute Units

-

1280

Shading Units

384

80

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

512 KB

L2 Cache

1024 KB

-

Theoretical Performance

27.20 GPixel/s

Pixel Rate

18.82 GPixel/s

68.00 GTexel/s

Texture Rate

37.63 GTexel/s

-

2.176 TFLOPS

FP32 (float)

903.2 GFLOPS

136.0 GFLOPS

FP64 (double)

28.22 GFLOPS

Board Design

100W

TDP

33W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Wimbledon

GPU Name

GM108

Wimbledon XT (216-0836036)

GPU Variant

-

GCN 1.0

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

Unknown

212 mm²

Die Size

Unknown

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

5.0

5.1

Shader Model

5.1

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