NVIDIA GeForce GTX 285 vs ATI Radeon HD 3830

VS

NVIDIA GeForce GTX 285

ATI Radeon HD 3830

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 285 and 256MB VRAM Radeon HD 3830 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 285 's Advantages

Released 8 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (159.0GB/s vs 26.50GB/s)

ATI Radeon HD 3830 's Advantages

80 additional rendering cores

Lower TDP (75W vs 204W)

Score

Benchmark

FP32 (float)

GeForce GTX 285 +65%

0.708 TFLOPS

Radeon HD 3830

0.428 TFLOPS

GeForce GTX 285

VS

Radeon HD 3830

Graphics Card

Dec 2008

Release Date

Apr 2008

GeForce 200

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1242 MHz

Memory Clock

828 MHz

Memory

1024MB

Memory Size

256MB

GDDR3

Memory Type

GDDR3

512bit

Memory Bus

128bit

159.0GB/s

Bandwidth

26.50GB/s

Render Config

-

Compute Units

4

30

SM Count

-

240

Shading Units

320

80

TMUs

16

32

ROPs

16

-

256 KB

L2 Cache

128 KB

-

Theoretical Performance

20.74 GPixel/s

Pixel Rate

10.69 GPixel/s

51.84 GTexel/s

Texture Rate

10.69 GTexel/s

-

708.5 GFLOPS

FP32 (float)

427.5 GFLOPS

88.56 GFLOPS

FP64 (double)

85.50 GFLOPS

Board Design

204W

TDP

75W

550 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

No outputs

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

GT200B

GPU Name

RV670

G200-350-B3

GPU Variant

RV670 PRO (215-0708003)

Tesla 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

1.4 billion

Transistors

0.666 billion

470 mm²

Die Size

192 mm²

Graphics Features

11.1 (10_0)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3 (full) 4.0 (partial)

1.1

OpenCL

N/A

Vulkan

N/A

1.3

CUDA

-

4.0

Shader Model

4.1

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