NVIDIA GeForce GTX 555 OEM vs AMD Radeon HD 7870 GHz Edition

VS

NVIDIA GeForce GTX 555 OEM

AMD Radeon HD 7870 GHz Edition

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 555 OEM and 2GB VRAM Radeon HD 7870 GHz Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 555 OEM 's Advantages

Lower TDP (150W vs 175W)

AMD Radeon HD 7870 GHz Edition 's Advantages

Released 10 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 91.87GB/s)

992 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 555 OEM

0.848 TFLOPS

Radeon HD 7870 GHz Edition +201%

2.56 TFLOPS

GeForce GTX 555 OEM

VS

Radeon HD 7870 GHz Edition

Graphics Card

May 2011

Release Date

Mar 2012

GeForce 500

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

957 MHz

Memory Clock

1200 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

256bit

91.87GB/s

Bandwidth

153.6GB/s

Render Config

-

Compute Units

20

6

SM Count

-

288

Shading Units

1280

48

TMUs

80

24

ROPs

32

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

512 KB

-

Theoretical Performance

8.832 GPixel/s

Pixel Rate

32.00 GPixel/s

35.33 GTexel/s

Texture Rate

80.00 GTexel/s

-

847.9 GFLOPS

FP32 (float)

2.560 TFLOPS

70.66 GFLOPS

FP64 (double)

160.0 GFLOPS

Board Design

150W

TDP

175W

450 W

Suggested PSU

450 W

2x DVI 1x mini-HDMI 1.3a

Outputs

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

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

GF114

GPU Name

Pitcairn

GF114-200-KB-A1

GPU Variant

Pitcairn XT (215-0828047)

Fermi 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.95 billion

Transistors

2.8 billion

332 mm²

Die Size

212 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

2.1

CUDA

-

5.1

Shader Model

5.1

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