NVIDIA GeForce GTX 555 OEM vs AMD Radeon HD 6990

VS

NVIDIA GeForce GTX 555 OEM

AMD Radeon HD 6990

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 555 OEM and 2GB VRAM Radeon HD 6990 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 375W)

AMD Radeon HD 6990 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (160.0GB/s vs 91.87GB/s)

1248 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 555 OEM

0.848 TFLOPS

Radeon HD 6990 +200%

2.55 TFLOPS

GeForce GTX 555 OEM

VS

Radeon HD 6990

Graphics Card

May 2011

Release Date

Mar 2011

GeForce 500

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

957 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

256bit

91.87GB/s

Bandwidth

160.0GB/s

Render Config

-

Compute Units

24

6

SM Count

-

288

Shading Units

1536

48

TMUs

96

24

ROPs

32

-

64 KB (per SM)

L1 Cache

8 KB (per CU)

384 KB

L2 Cache

512 KB

-

Theoretical Performance

8.832 GPixel/s

Pixel Rate

26.56 GPixel/s

35.33 GTexel/s

Texture Rate

79.68 GTexel/s

-

847.9 GFLOPS

FP32 (float)

2.550 TFLOPS

70.66 GFLOPS

FP64 (double)

637.4 GFLOPS

Board Design

150W

TDP

375W

450 W

Suggested PSU

750 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI 4x mini-DisplayPort 1.2

2x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

GF114

GPU Name

Antilles

GF114-200-KB-A1

GPU Variant

Antilles XT (215-0807027)

Fermi 2.0

Architecture

TeraScale 3

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.95 billion

Transistors

2.64 billion

332 mm²

Die Size

389 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

5.0

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