NVIDIA GeForce GT 545 vs ATI Radeon HD 4850 X2

VS

NVIDIA GeForce GT 545

ATI Radeon HD 4850 X2

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 545 and 512MB VRAM Radeon HD 4850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 545 's Advantages

Released 2 years and 6 months late

More VRAM (1536GB vs 512GB)

Lower TDP (70W vs 250W)

ATI Radeon HD 4850 X2 's Advantages

Larger VRAM bandwidth (63.68GB/s vs 38.40GB/s)

656 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 545

0.415 TFLOPS

Radeon HD 4850 X2 +140%

1 TFLOPS

GeForce GT 545

VS

Radeon HD 4850 X2

Graphics Card

May 2011

Release Date

Nov 2008

GeForce 500

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

995 MHz

Memory

1536MB

Memory Size

512MB

DDR3

Memory Type

GDDR3

192bit

Memory Bus

256bit

38.40GB/s

Bandwidth

63.68GB/s

Render Config

-

Compute Units

10

3

SM Count

-

144

Shading Units

800

24

TMUs

40

16

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

10.00 GPixel/s

17.28 GTexel/s

Texture Rate

25.00 GTexel/s

-

414.7 GFLOPS

FP32 (float)

1000 GFLOPS

34.56 GFLOPS

FP64 (double)

200.0 GFLOPS

Board Design

70W

TDP

250W

250 W

Suggested PSU

600 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

4x DVI 1x S-Video

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GF116

GPU Name

R700

-

GPU Variant

R700 PRO (215-0669065)

Fermi 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.17 billion

Transistors

0.956 billion

238 mm²

Die Size

256 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

4.1

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