NVIDIA GeForce GT 645 OEM vs AMD Radeon HD 6750

VS

NVIDIA GeForce GT 645 OEM

AMD Radeon HD 6750

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 1024MB VRAM Radeon HD 6750 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 645 OEM 's Advantages

Released 1 years and 3 months late

Larger VRAM bandwidth (91.87GB/s vs 73.60GB/s)

AMD Radeon HD 6750 's Advantages

432 additional rendering cores

Lower TDP (86W vs 102W)

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM

0.894 TFLOPS

Radeon HD 6750 +12%

1.008 TFLOPS

GeForce GT 645 OEM

VS

Radeon HD 6750

Graphics Card

Apr 2012

Release Date

Jan 2011

GeForce 600

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

957 MHz

Memory Clock

1150 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

128bit

91.87GB/s

Bandwidth

73.60GB/s

Render Config

-

Compute Units

9

6

SM Count

-

288

Shading Units

720

48

TMUs

36

24

ROPs

16

-

64 KB (per SM)

L1 Cache

8 KB (per CU)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

9.312 GPixel/s

Pixel Rate

11.20 GPixel/s

37.25 GTexel/s

Texture Rate

25.20 GTexel/s

-

894.0 GFLOPS

FP32 (float)

1008 GFLOPS

74.50 GFLOPS

FP64 (double)

-

Board Design

102W

TDP

86W

300 W

Suggested PSU

250 W

2x DVI 1x mini-HDMI 1.3a

Outputs

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

-

Power Connectors

1x 6-pin

Graphics Processor

GF114

GPU Name

Juniper

-

GPU Variant

Juniper LE (215-0754009)

Fermi 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.95 billion

Transistors

1.04 billion

332 mm²

Die Size

166 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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