AMD Radeon HD 8970M vs NVIDIA GeForce GT 745M

VS

AMD Radeon HD 8970M

NVIDIA GeForce GT 745M

We compared two Mobile platform GPUs: 4GB VRAM Radeon HD 8970M and 2GB VRAM GeForce GT 745M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8970M 's Advantages

Boost Clock900MHz

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (153.6GB/s vs 28.80GB/s)

896 additional rendering cores

NVIDIA GeForce GT 745M 's Advantages

Lower TDP (45W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 8970M +258%

2.304 TFLOPS

GeForce GT 745M

0.643 TFLOPS

Radeon HD 8970M

VS

GeForce GT 745M

Graphics Card

May 2013

Release Date

Apr 2013

Solar System

Generation

GeForce 700M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

850 MHz

Base Clock

-

900 MHz

Boost Clock

-

1200 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

28.80GB/s

Render Config

20

Compute Units

-

1280

Shading Units

384

80

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

6.696 GPixel/s

72.00 GTexel/s

Texture Rate

26.78 GTexel/s

-

2.304 TFLOPS

FP32 (float)

642.8 GFLOPS

144.0 GFLOPS

FP64 (double)

26.78 GFLOPS

Board Design

100W

TDP

45W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Neptune

GPU Name

GK107

Neptune XT (216-0847000)

GPU Variant

N14P-LP

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

1.27 billion

212 mm²

Die Size

118 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

5.1

Shader Model

5.1

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