NVIDIA GeForce GT 640 OEM Rebrand vs AMD Radeon HD 6530

VS

NVIDIA GeForce GT 640 OEM Rebrand

AMD Radeon HD 6530

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 640 OEM Rebrand and 1024MB VRAM Radeon HD 6530 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 OEM Rebrand 's Advantages

Released 11 months late

More VRAM (1536GB vs 1024GB)

Larger VRAM bandwidth (38.40GB/s vs 19.20GB/s)

AMD Radeon HD 6530 's Advantages

256 additional rendering cores

Lower TDP (39W vs 75W)

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

Radeon HD 6530 +25%

0.52 TFLOPS

GeForce GT 640 OEM Rebrand

VS

Radeon HD 6530

Graphics Card

Apr 2012

Release Date

May 2011

GeForce 600

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

600 MHz

Memory

1536MB

Memory Size

1024MB

DDR3

Memory Type

GDDR3

192bit

Memory Bus

128bit

38.40GB/s

Bandwidth

19.20GB/s

Render Config

-

Compute Units

5

3

SM Count

-

144

Shading Units

400

24

TMUs

20

24

ROPs

8

-

64 KB (per SM)

L1 Cache

8 KB (per CU)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

5.200 GPixel/s

17.28 GTexel/s

Texture Rate

13.00 GTexel/s

-

414.7 GFLOPS

FP32 (float)

520.0 GFLOPS

34.56 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

39W

250 W

Suggested PSU

200 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

-

Graphics Processor

GF116

GPU Name

Redwood

GF116-150-A1

GPU Variant

Redwood PRO (215-0757004)

Fermi 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.17 billion

Transistors

0.627 billion

238 mm²

Die Size

104 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

5.0

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