NVIDIA GeForce GT 545 vs AMD Radeon HD 6990

VS

NVIDIA GeForce GT 545

AMD Radeon HD 6990

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 545 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 GT 545 's Advantages

Lower TDP (70W vs 375W)

AMD Radeon HD 6990 's Advantages

More VRAM (2GB vs 1536GB)

Larger VRAM bandwidth (160.0GB/s vs 38.40GB/s)

1392 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 545

0.415 TFLOPS

Radeon HD 6990 +514%

2.55 TFLOPS

GeForce GT 545

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

-

800 MHz

Memory Clock

1250 MHz

Memory

1536MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

192bit

Memory Bus

256bit

38.40GB/s

Bandwidth

160.0GB/s

Render Config

-

Compute Units

24

3

SM Count

-

144

Shading Units

1536

24

TMUs

96

16

ROPs

32

-

64 KB (per SM)

L1 Cache

8 KB (per CU)

384 KB

L2 Cache

512 KB

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

26.56 GPixel/s

17.28 GTexel/s

Texture Rate

79.68 GTexel/s

-

414.7 GFLOPS

FP32 (float)

2.550 TFLOPS

34.56 GFLOPS

FP64 (double)

637.4 GFLOPS

Board Design

70W

TDP

375W

250 W

Suggested PSU

750 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x DVI 4x mini-DisplayPort 1.2

None

Power Connectors

2x 8-pin

Graphics Processor

GF116

GPU Name

Antilles

-

GPU Variant

Antilles XT (215-0807027)

Fermi 2.0

Architecture

TeraScale 3

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.17 billion

Transistors

2.64 billion

238 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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