NVIDIA GeForce GTX 670 vs ATI Radeon HD 3870

VS

NVIDIA GeForce GTX 670

ATI Radeon HD 3870

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 670 and 512MB VRAM Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 670 's Advantages

Released 4 years and 6 months late

Boost Clock980MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (192.3GB/s vs 72.06GB/s)

1024 additional rendering cores

ATI Radeon HD 3870 's Advantages

Lower TDP (106W vs 170W)

Score

Benchmark

FP32 (float)

GeForce GTX 670 +429%

2.634 TFLOPS

Radeon HD 3870

0.497 TFLOPS

GeForce GTX 670

VS

Radeon HD 3870

Graphics Card

May 2012

Release Date

Nov 2007

GeForce 600

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

915 MHz

Base Clock

-

980 MHz

Boost Clock

-

1502 MHz

Memory Clock

1126 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR4

256bit

Memory Bus

256bit

192.3GB/s

Bandwidth

72.06GB/s

Render Config

-

Compute Units

4

-

1344

Shading Units

320

112

TMUs

16

32

ROPs

16

-

16 KB (per SMX)

L1 Cache

-

512 KB

L2 Cache

256 KB

-

Theoretical Performance

27.44 GPixel/s

Pixel Rate

12.43 GPixel/s

109.8 GTexel/s

Texture Rate

12.43 GTexel/s

-

2.634 TFLOPS

FP32 (float)

497.3 GFLOPS

109.8 GFLOPS

FP64 (double)

99.46 GFLOPS

Board Design

170W

TDP

106W

450 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

GK104

GPU Name

RV670

GK104-325-A2

GPU Variant

RV670 XT (215-0708005)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

3.54 billion

Transistors

0.666 billion

294 mm²

Die Size

192 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

3.0

OpenCL

N/A

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

4.1

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