AMD Radeon HD 6750 vs NVIDIA GeForce GT 640 OEM Rebrand

VS

AMD Radeon HD 6750

NVIDIA GeForce GT 640 OEM Rebrand

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6750 and 1536MB VRAM GeForce GT 640 OEM Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6750 's Advantages

Larger VRAM bandwidth (73.60GB/s vs 38.40GB/s)

576 additional rendering cores

NVIDIA GeForce GT 640 OEM Rebrand 's Advantages

Released 1 years and 3 months late

More VRAM (1536GB vs 1024GB)

Lower TDP (75W vs 86W)

Score

Benchmark

FP32 (float)

Radeon HD 6750 +142%

1.008 TFLOPS

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

Radeon HD 6750

VS

GeForce GT 640 OEM Rebrand

Graphics Card

Jan 2011

Release Date

Apr 2012

Northern Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1150 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

1536MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

192bit

73.60GB/s

Bandwidth

38.40GB/s

Render Config

9

Compute Units

-

SM Count

3

720

Shading Units

144

36

TMUs

24

16

ROPs

24

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

384 KB

-

Theoretical Performance

11.20 GPixel/s

Pixel Rate

4.320 GPixel/s

25.20 GTexel/s

Texture Rate

17.28 GTexel/s

-

1008 GFLOPS

FP32 (float)

414.7 GFLOPS

-

FP64 (double)

34.56 GFLOPS

Board Design

86W

TDP

75W

250 W

Suggested PSU

250 W

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 6-pin

Power Connectors

None

Graphics Processor

Juniper

GPU Name

GF116

Juniper LE (215-0754009)

GPU Variant

GF116-150-A1

TeraScale 2

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.04 billion

Transistors

1.17 billion

166 mm²

Die Size

238 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

5.0

Shader Model

5.1

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