NVIDIA GeForce 800A vs NVIDIA GeForce GT 745A

VS

NVIDIA GeForce 800A

NVIDIA GeForce GT 745A

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 800A and 2GB VRAM GeForce GT 745A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 800A 's Advantages

Released 7 months late

Lower TDP (15W vs 33W)

NVIDIA GeForce GT 745A 's Advantages

Boost Clock915MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (28.80GB/s vs 14.40GB/s)

336 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 800A

0.091 TFLOPS

GeForce GT 745A +672%

0.703 TFLOPS

GeForce 800A

VS

GeForce GT 745A

Graphics Card

Mar 2014

Release Date

Aug 2013

GeForce 800A

Generation

GeForce 700A

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

837 MHz

-

Boost Clock

915 MHz

900 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

DDR3

64bit

Memory Bus

128bit

14.40GB/s

Bandwidth

28.80GB/s

Render Config

-

1

SM Count

-

48

Shading Units

384

8

TMUs

32

4

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

950.0 MPixel/s

Pixel Rate

7.320 GPixel/s

3.800 GTexel/s

Texture Rate

29.28 GTexel/s

-

91.20 GFLOPS

FP32 (float)

702.7 GFLOPS

7.600 GFLOPS

FP64 (double)

29.28 GFLOPS

Board Design

15W

TDP

33W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GF119

GPU Name

GK107

-

GPU Variant

N14P-LP

Fermi 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.292 billion

Transistors

1.27 billion

79 mm²

Die Size

118 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

2.1

CUDA

3.0

5.1

Shader Model

5.1

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