AMD Radeon HD 7870 GHz Edition vs NVIDIA GeForce GT 705 OEM

VS

AMD Radeon HD 7870 GHz Edition

NVIDIA GeForce GT 705 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 GHz Edition and 1024MB VRAM GeForce GT 705 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870 GHz Edition 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 13.20GB/s)

1232 additional rendering cores

NVIDIA GeForce GT 705 OEM 's Advantages

Released 2 years late

Lower TDP (29W vs 175W)

Score

Benchmark

FP32 (float)

Radeon HD 7870 GHz Edition +1423%

2.56 TFLOPS

GeForce GT 705 OEM

0.168 TFLOPS

Radeon HD 7870 GHz Edition

VS

GeForce GT 705 OEM

Graphics Card

Mar 2012

Release Date

Mar 2014

Southern Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

825 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

153.6GB/s

Bandwidth

13.20GB/s

Render Config

20

Compute Units

-

SM Count

1

1280

Shading Units

48

80

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

1.748 GPixel/s

80.00 GTexel/s

Texture Rate

6.992 GTexel/s

-

2.560 TFLOPS

FP32 (float)

167.8 GFLOPS

160.0 GFLOPS

FP64 (double)

13.98 GFLOPS

Board Design

175W

TDP

29W

450 W

Suggested PSU

200 W

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

-

Graphics Processor

Pitcairn

GPU Name

GF119

Pitcairn XT (215-0828047)

GPU Variant

GF119-300-A1

GCN 1.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

0.292 billion

212 mm²

Die Size

79 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

5.1

Shader Model

5.1

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