NVIDIA GeForce GT 640 vs ATI Radeon HD 5690

VS

NVIDIA GeForce GT 640

ATI Radeon HD 5690

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 1024MB VRAM Radeon HD 5690 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 's Advantages

Released 1 years and 4 months late

More VRAM (2GB vs 1024GB)

ATI Radeon HD 5690 's Advantages

Larger VRAM bandwidth (32.00GB/s vs 28.51GB/s)

16 additional rendering cores

Lower TDP (64W vs 65W)

Score

Benchmark

FP32 (float)

GeForce GT 640 +11%

0.693 TFLOPS

Radeon HD 5690

0.62 TFLOPS

GeForce GT 640

VS

Radeon HD 5690

Graphics Card

Jun 2012

Release Date

Feb 2011

GeForce 600

Generation

Evergreen

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

891 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

GDDR3

128bit

Memory Bus

128bit

28.51GB/s

Bandwidth

32.00GB/s

Render Config

-

Compute Units

5

-

384

Shading Units

400

32

TMUs

20

16

ROPs

8

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

7.216 GPixel/s

Pixel Rate

6.200 GPixel/s

28.86 GTexel/s

Texture Rate

15.50 GTexel/s

-

692.7 GFLOPS

FP32 (float)

620.0 GFLOPS

28.86 GFLOPS

FP64 (double)

-

Board Design

65W

TDP

64W

250 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

-

Graphics Processor

GK107

GPU Name

Redwood

GK107-300-A2

GPU Variant

Redwood XT (215-0757002)

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.27 billion

Transistors

0.627 billion

118 mm²

Die Size

104 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

5.0

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