NVIDIA GeForce GT 745A vs AMD Radeon HD 8670A

VS

NVIDIA GeForce GT 745A

AMD Radeon HD 8670A

We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 745A and 1024MB VRAM Radeon HD 8670A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 745A 's Advantages

Released 6 months late

Boost Clock915MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (28.80GB/s vs 16.00GB/s)

Lower TDP (33W vs 45W)

Score

Benchmark

FP32 (float)

GeForce GT 745A +52%

0.703 TFLOPS

Radeon HD 8670A

0.461 TFLOPS

GeForce GT 745A

VS

Radeon HD 8670A

Graphics Card

Aug 2013

Release Date

Feb 2013

GeForce 700A

Generation

All-In-One

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

837 MHz

Base Clock

-

915 MHz

Boost Clock

-

900 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

DDR3

128bit

Memory Bus

64bit

28.80GB/s

Bandwidth

16.00GB/s

Render Config

-

Compute Units

6

-

384

Shading Units

384

32

TMUs

24

16

ROPs

8

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

7.320 GPixel/s

Pixel Rate

4.800 GPixel/s

29.28 GTexel/s

Texture Rate

14.40 GTexel/s

-

702.7 GFLOPS

FP32 (float)

460.8 GFLOPS

29.28 GFLOPS

FP64 (double)

28.80 GFLOPS

Board Design

33W

TDP

45W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GK107

GPU Name

Mars

N14P-LP

GPU Variant

Mars XT

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.27 billion

Transistors

0.95 billion

118 mm²

Die Size

77 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

5.1

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