NVIDIA GeForce GTX 275 vs ATI Radeon HD 4750

VS

NVIDIA GeForce GTX 275

ATI Radeon HD 4750

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 275 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 275 's Advantages

More VRAM (896GB vs 512GB)

Larger VRAM bandwidth (127.0GB/s vs 51.20GB/s)

ATI Radeon HD 4750 's Advantages

Released 8 months late

400 additional rendering cores

Lower TDP (100W vs 219W)

Score

Benchmark

FP32 (float)

GeForce GTX 275

0.674 TFLOPS

Radeon HD 4750 +38%

0.934 TFLOPS

GeForce GTX 275

VS

Radeon HD 4750

Graphics Card

Jan 2009

Release Date

Sep 2009

GeForce 200

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1134 MHz

Memory Clock

800 MHz

Memory

896MB

Memory Size

512MB

GDDR3

Memory Type

GDDR5

448bit

Memory Bus

128bit

127.0GB/s

Bandwidth

51.20GB/s

Render Config

-

Compute Units

8

30

SM Count

-

240

Shading Units

640

80

TMUs

32

28

ROPs

16

-

L1 Cache

16 KB (per CU)

224 KB

L2 Cache

128 KB

-

Theoretical Performance

17.72 GPixel/s

Pixel Rate

11.68 GPixel/s

50.64 GTexel/s

Texture Rate

23.36 GTexel/s

-

673.9 GFLOPS

FP32 (float)

934.4 GFLOPS

84.24 GFLOPS

FP64 (double)

186.9 GFLOPS

Board Design

219W

TDP

100W

550 W

Suggested PSU

300 W

2x DVI

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

GT200B

GPU Name

RV740

G200-105-B3

GPU Variant

RV740 PRO

Tesla 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

1.4 billion

Transistors

0.826 billion

470 mm²

Die Size

137 mm²

Graphics Features

11.1 (10_0)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

1.3

CUDA

-

4.0

Shader Model

4.1

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