ATI Radeon X1600 vs NVIDIA GeForce GT 640 Rev. 2

VS

ATI Radeon X1600

NVIDIA GeForce GT 640 Rev. 2

We compared two Desktop platform GPUs: 512MB VRAM Radeon X1600 and 1024MB VRAM GeForce GT 640 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon X1600 's Advantages

Lower TDP (27W vs 49W)

NVIDIA GeForce GT 640 Rev. 2 's Advantages

Released 6 years and 4 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (40.06GB/s vs 12.80GB/s)

384 additional rendering cores

Score

Radeon X1600

VS

GeForce GT 640 Rev. 2

Graphics Card

Jan 2007

Release Date

May 2013

Radeon R500 PCIe

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x8

Clock Speeds

-

400 MHz

Memory Clock

1252 MHz

Memory

512MB

Memory Size

1024MB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

64bit

12.80GB/s

Bandwidth

40.06GB/s

Render Config

-

Shading Units

384

4

TMUs

32

4

ROPs

8

-

L1 Cache

16 KB (per SMX)

-

L2 Cache

512 KB

-

Theoretical Performance

2.540 GPixel/s

Pixel Rate

8.368 GPixel/s

2.540 GTexel/s

Texture Rate

33.47 GTexel/s

-

FP32 (float)

803.3 GFLOPS

-

FP64 (double)

33.47 GFLOPS

Board Design

27W

TDP

49W

200 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

None

Power Connectors

None

Graphics Processor

RV516

GPU Name

GK208

-

GPU Variant

GK208-400-A1

R500

Architecture

Kepler 2.0

UMC

Foundry

TSMC

80 nm

Process Size

28 nm

0.107 billion

Transistors

1.02 billion

100 mm²

Die Size

87 mm²

Graphics Features

9.0c (9_3)

DirectX

12 (11_0)

2.1

OpenGL

4.6

N/A

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.5

3.0

Shader Model

5.1

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