ATI Radeon HD 3470 vs NVIDIA GeForce GT 640 OEM Rebrand

VS

ATI Radeon HD 3470

NVIDIA GeForce GT 640 OEM Rebrand

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 3470 and 1536MB VRAM GeForce GT 640 OEM Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3470 's Advantages

Lower TDP (30W vs 75W)

NVIDIA GeForce GT 640 OEM Rebrand 's Advantages

Released 4 years and 3 months late

More VRAM (1536GB vs 256GB)

Larger VRAM bandwidth (38.40GB/s vs 15.20GB/s)

104 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 3470

0.064 TFLOPS

GeForce GT 640 OEM Rebrand +548%

0.415 TFLOPS

Radeon HD 3470

VS

GeForce GT 640 OEM Rebrand

Graphics Card

Jan 2008

Release Date

Apr 2012

Radeon R600

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

950 MHz

Memory Clock

800 MHz

Memory

256MB

Memory Size

1536MB

GDDR3

Memory Type

DDR3

64bit

Memory Bus

192bit

15.20GB/s

Bandwidth

38.40GB/s

Render Config

2

Compute Units

-

SM Count

3

40

Shading Units

144

4

TMUs

24

4

ROPs

24

-

L1 Cache

64 KB (per SM)

64 KB

L2 Cache

384 KB

-

Theoretical Performance

3.200 GPixel/s

Pixel Rate

4.320 GPixel/s

3.200 GTexel/s

Texture Rate

17.28 GTexel/s

-

64.00 GFLOPS

FP32 (float)

414.7 GFLOPS

-

FP64 (double)

34.56 GFLOPS

Board Design

30W

TDP

75W

200 W

Suggested PSU

250 W

1x DVI 1x VGA 1x S-Video

Outputs

2x DVI 1x mini-HDMI 1.3a

None

Power Connectors

None

Graphics Processor

RV620

GPU Name

GF116

RV620 PRO (215-0670006)

GPU Variant

GF116-150-A1

TeraScale

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.181 billion

Transistors

1.17 billion

67 mm²

Die Size

238 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

4.1

Shader Model

5.1

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