ATI Radeon HD 5970 vs NVIDIA GeForce GT 640 Rev. 2

VS

ATI Radeon HD 5970

NVIDIA GeForce GT 640 Rev. 2

We compared two Desktop platform GPUs: 1024MB VRAM ATI Radeon HD 5970 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 HD 5970 's Advantages

Larger VRAM bandwidth (128.0GB/s vs 40.06GB/s)

1216 additional rendering cores

NVIDIA GeForce GT 640 Rev. 2 's Advantages

Released 3 years and 6 months late

Lower TDP (49W vs 294W)

Score

Benchmark

FP32 (float)

ATI Radeon HD 5970 +188%

2.32 TFLOPS

GeForce GT 640 Rev. 2

0.803 TFLOPS

ATI Radeon HD 5970

VS

GeForce GT 640 Rev. 2

Graphics Card

Nov 2009

Release Date

May 2013

Evergreen

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x8

Clock Speeds

-

1000 MHz

Memory Clock

1252 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

64bit

128.0GB/s

Bandwidth

40.06GB/s

Render Config

20

Compute Units

-

1600

Shading Units

384

80

TMUs

32

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

23.20 GPixel/s

Pixel Rate

8.368 GPixel/s

58.00 GTexel/s

Texture Rate

33.47 GTexel/s

-

2.320 TFLOPS

FP32 (float)

803.3 GFLOPS

464.0 GFLOPS

FP64 (double)

33.47 GFLOPS

Board Design

294W

TDP

49W

600 W

Suggested PSU

200 W

2x DVI 1x mini-DisplayPort 1.1

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Hemlock

GPU Name

GK208

Hemlock XT (215-0735075)

GPU Variant

GK208-400-A1

TeraScale 2

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

2.154 billion

Transistors

1.02 billion

334 mm²

Die Size

87 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.5

5.0

Shader Model

5.1

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