NVIDIA GeForce GTX 490 vs ATI Radeon HD 4750

VS

NVIDIA GeForce GTX 490

ATI Radeon HD 4750

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 490 and 512MB VRAM Radeon HD 4750 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 490 's Advantages

More VRAM (1536GB vs 512GB)

Larger VRAM bandwidth (164.0GB/s vs 51.20GB/s)

ATI Radeon HD 4750 's Advantages

160 additional rendering cores

Lower TDP (100W vs 365W)

Score

Benchmark

FP32 (float)

GeForce GTX 490 +24%

1.166 TFLOPS

Radeon HD 4750

0.934 TFLOPS

GeForce GTX 490

VS

Radeon HD 4750

Graphics Card

Unknown

Release Date

Sep 2009

GeForce 400

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

854 MHz

Memory Clock

800 MHz

Memory

1536MB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

164.0GB/s

Bandwidth

51.20GB/s

Render Config

-

Compute Units

8

15

SM Count

-

480

Shading Units

640

60

TMUs

32

48

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

128 KB

-

Theoretical Performance

18.24 GPixel/s

Pixel Rate

11.68 GPixel/s

36.48 GTexel/s

Texture Rate

23.36 GTexel/s

-

1166 GFLOPS

FP32 (float)

934.4 GFLOPS

145.8 GFLOPS

FP64 (double)

186.9 GFLOPS

Board Design

365W

TDP

100W

750 W

Suggested PSU

300 W

3x DVI 1x mini-DisplayPort

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

GF100

GPU Name

RV740

GF100-375-A3

GPU Variant

RV740 PRO

Fermi

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

3.1 billion

Transistors

0.826 billion

529 mm²

Die Size

137 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

2.0

CUDA

-

5.1

Shader Model

4.1

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