ATI Radeon HD 3830 vs NVIDIA GeForce GTX 660 OEM

VS

ATI Radeon HD 3830

NVIDIA GeForce GTX 660 OEM

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 3830 and 1536MB VRAM GeForce GTX 660 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3830 's Advantages

Lower TDP (75W vs 130W)

NVIDIA GeForce GTX 660 OEM 's Advantages

Released 4 years and 4 months late

Boost Clock888MHz

More VRAM (1536GB vs 256GB)

Larger VRAM bandwidth (134.4GB/s vs 26.50GB/s)

832 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 3830

0.428 TFLOPS

GeForce GTX 660 OEM +378%

2.046 TFLOPS

Radeon HD 3830

VS

GeForce GTX 660 OEM

Graphics Card

Apr 2008

Release Date

Aug 2012

Radeon R600

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

823 MHz

-

Boost Clock

888 MHz

828 MHz

Memory Clock

1400 MHz

Memory

256MB

Memory Size

1536MB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

192bit

26.50GB/s

Bandwidth

134.4GB/s

Render Config

4

Compute Units

-

320

Shading Units

1152

16

TMUs

96

16

ROPs

24

-

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

384 KB

-

Theoretical Performance

10.69 GPixel/s

Pixel Rate

21.31 GPixel/s

10.69 GTexel/s

Texture Rate

85.25 GTexel/s

-

427.5 GFLOPS

FP32 (float)

2.046 TFLOPS

85.50 GFLOPS

FP64 (double)

85.25 GFLOPS

Board Design

75W

TDP

130W

250 W

Suggested PSU

300 W

No outputs

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

RV670

GPU Name

GK104

RV670 PRO (215-0708003)

GPU Variant

GK104-200-KD-A2

TeraScale

Architecture

Kepler

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.666 billion

Transistors

3.54 billion

192 mm²

Die Size

294 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

4.1

Shader Model

5.1

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