NVIDIA GeForce GT 640 vs ATI Radeon X1950 PRO DUAL

VS

NVIDIA GeForce GT 640

ATI Radeon X1950 PRO DUAL

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 512MB VRAM Radeon X1950 PRO DUAL to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 's Advantages

Released 5 years and 5 months late

More VRAM (2GB vs 512GB)

384 additional rendering cores

Lower TDP (65W vs 130W)

ATI Radeon X1950 PRO DUAL 's Advantages

Larger VRAM bandwidth (44.16GB/s vs 28.51GB/s)

Score

GeForce GT 640

VS

Radeon X1950 PRO DUAL

Graphics Card

Jun 2012

Release Date

Jan 2007

GeForce 600

Generation

Radeon R500 PCIe

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

891 MHz

Memory Clock

690 MHz

Memory

2GB

Memory Size

512MB

DDR3

Memory Type

GDDR3

128bit

Memory Bus

256bit

28.51GB/s

Bandwidth

44.16GB/s

Render Config

-

384

Shading Units

-

32

TMUs

12

16

ROPs

12

-

16 KB (per SMX)

L1 Cache

-

256 KB

L2 Cache

-

Theoretical Performance

7.216 GPixel/s

Pixel Rate

6.900 GPixel/s

28.86 GTexel/s

Texture Rate

6.900 GTexel/s

-

692.7 GFLOPS

FP32 (float)

-

28.86 GFLOPS

FP64 (double)

-

Board Design

65W

TDP

130W

250 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin

Graphics Processor

GK107

GPU Name

RV570

GK107-300-A2

GPU Variant

RV570 XT (215PADAKA12FG)

Kepler

Architecture

R500

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

1.27 billion

Transistors

0.33 billion

118 mm²

Die Size

230 mm²

Graphics Features

12 (11_0)

DirectX

9.0c (9_3)

4.6

OpenGL

2.1 (full) 3.0 (partial)

3.0

OpenCL

N/A

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

3.0

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