AMD Radeon HD 6990 vs NVIDIA GeForce GTX 550 Ti

VS

AMD Radeon HD 6990

NVIDIA GeForce GTX 550 Ti

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 1024MB VRAM GeForce GTX 550 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (160.0GB/s vs 98.50GB/s)

1344 additional rendering cores

NVIDIA GeForce GTX 550 Ti 's Advantages

Lower TDP (116W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6990 +269%

2.55 TFLOPS

GeForce GTX 550 Ti

0.691 TFLOPS

Radeon HD 6990

VS

GeForce GTX 550 Ti

Graphics Card

Mar 2011

Release Date

Mar 2011

Northern Islands

Generation

GeForce 500

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

1026 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

192bit

160.0GB/s

Bandwidth

98.50GB/s

Render Config

24

Compute Units

-

SM Count

4

1536

Shading Units

192

96

TMUs

32

ROPs

24

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

384 KB

-

Theoretical Performance

26.56 GPixel/s

Pixel Rate

7.200 GPixel/s

79.68 GTexel/s

Texture Rate

28.80 GTexel/s

-

2.550 TFLOPS

FP32 (float)

691.2 GFLOPS

637.4 GFLOPS

FP64 (double)

57.60 GFLOPS

Board Design

375W

TDP

116W

750 W

Suggested PSU

300 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

2x DVI 1x mini-HDMI 1.3a

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Antilles

GPU Name

GF116

Antilles XT (215-0807027)

GPU Variant

GF116-400-A1

TeraScale 3

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

2.64 billion

Transistors

1.17 billion

389 mm²

Die Size

238 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

5.0

Shader Model

5.1

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