NVIDIA GeForce GT 640 vs AMD Radeon HD 6510

VS

NVIDIA GeForce GT 640

AMD Radeon HD 6510

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 1024MB VRAM Radeon HD 6510 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 1 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (28.51GB/s vs 16.00GB/s)

AMD Radeon HD 6510 's Advantages

16 additional rendering cores

Lower TDP (39W vs 65W)

Score

Benchmark

FP32 (float)

GeForce GT 640 +33%

0.693 TFLOPS

Radeon HD 6510

0.52 TFLOPS

GeForce GT 640

VS

Radeon HD 6510

Graphics Card

Jun 2012

Release Date

May 2011

GeForce 600

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

891 MHz

Memory Clock

500 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

GDDR3

128bit

Memory Bus

128bit

28.51GB/s

Bandwidth

16.00GB/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

5.200 GPixel/s

28.86 GTexel/s

Texture Rate

13.00 GTexel/s

-

692.7 GFLOPS

FP32 (float)

520.0 GFLOPS

28.86 GFLOPS

FP64 (double)

-

Board Design

65W

TDP

39W

250 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

None

Graphics Processor

GK107

GPU Name

Redwood

GK107-300-A2

GPU Variant

Redwood PRO (215-0757004)

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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