NVIDIA GeForce GT 645 OEM vs ATI Radeon HD 2400 PRO

VS

NVIDIA GeForce GT 645 OEM

ATI Radeon HD 2400 PRO

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 256MB VRAM ATI Radeon HD 2400 PRO 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 4 years and 10 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (91.87GB/s vs 6.400GB/s)

248 additional rendering cores

ATI Radeon HD 2400 PRO 's Advantages

Lower TDP (20W vs 102W)

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM +2028%

0.894 TFLOPS

ATI Radeon HD 2400 PRO

0.042 TFLOPS

GeForce GT 645 OEM

VS

ATI Radeon HD 2400 PRO

Graphics Card

Apr 2012

Release Date

Jun 2007

GeForce 600

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

957 MHz

Memory Clock

400 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

DDR2

192bit

Memory Bus

64bit

91.87GB/s

Bandwidth

6.400GB/s

Render Config

-

Compute Units

2

6

SM Count

-

288

Shading Units

40

48

TMUs

4

24

ROPs

4

-

64 KB (per SM)

L1 Cache

-

384 KB

L2 Cache

32 KB

-

Theoretical Performance

9.312 GPixel/s

Pixel Rate

2.100 GPixel/s

37.25 GTexel/s

Texture Rate

2.100 GTexel/s

-

894.0 GFLOPS

FP32 (float)

42.00 GFLOPS

74.50 GFLOPS

FP64 (double)

-

Board Design

102W

TDP

20W

300 W

Suggested PSU

200 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI 1x VGA 1x S-Video

-

Power Connectors

None

Graphics Processor

GF114

GPU Name

RV610

-

GPU Variant

RV610 LE (215LKCAKA14FG)

Fermi 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

65 nm

1.95 billion

Transistors

0.18 billion

332 mm²

Die Size

85 mm²

Graphics Features

12 (11_0)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3

1.1

OpenCL

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

4.0

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