ATI Radeon HD 4750 vs NVIDIA GeForce 8400 GS

VS

ATI Radeon HD 4750

NVIDIA GeForce 8400 GS

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4750 and 256MB VRAM GeForce 8400 GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4750 's Advantages

Released 2 years and 5 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (51.20GB/s vs 6.400GB/s)

624 additional rendering cores

NVIDIA GeForce 8400 GS 's Advantages

Lower TDP (40W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 4750 +3120%

0.934 TFLOPS

GeForce 8400 GS

0.029 TFLOPS

Radeon HD 4750

VS

GeForce 8400 GS

Graphics Card

Sep 2009

Release Date

Apr 2007

Radeon R700

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

800 MHz

Memory Clock

400 MHz

Memory

512MB

Memory Size

256MB

GDDR5

Memory Type

DDR2

128bit

Memory Bus

64bit

51.20GB/s

Bandwidth

6.400GB/s

Render Config

8

Compute Units

-

SM Count

2

640

Shading Units

16

32

TMUs

8

16

ROPs

4

-

16 KB (per CU)

L1 Cache

-

128 KB

L2 Cache

16 KB

-

Theoretical Performance

11.68 GPixel/s

Pixel Rate

1.836 GPixel/s

23.36 GTexel/s

Texture Rate

3.672 GTexel/s

-

934.4 GFLOPS

FP32 (float)

29.38 GFLOPS

186.9 GFLOPS

FP64 (double)

-

Board Design

100W

TDP

40W

300 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin

Power Connectors

None

Graphics Processor

RV740

GPU Name

G86

RV740 PRO

GPU Variant

G86-213-A2

TeraScale

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

0.826 billion

Transistors

0.21 billion

137 mm²

Die Size

127 mm²

Graphics Features

10.1 (10_1)

DirectX

11.1 (10_0)

3.3

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.1

4.1

Shader Model

4.0

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