AMD Radeon R7 250X vs ATI Radeon HD 4750

VS

AMD Radeon R7 250X

ATI Radeon HD 4750

We compared two Desktop platform GPUs: 1024MB VRAM Radeon R7 250X and 512MB VRAM Radeon HD 4750 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 250X 's Advantages

Released 4 years and 5 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (72.00GB/s vs 51.20GB/s)

Lower TDP (80W vs 100W)

Score

Benchmark

FP32 (float)

Radeon R7 250X +30%

1.216 TFLOPS

Radeon HD 4750

0.934 TFLOPS

Radeon R7 250X

VS

Radeon HD 4750

Graphics Card

Feb 2014

Release Date

Sep 2009

Volcanic Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1125 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

72.00GB/s

Bandwidth

51.20GB/s

Render Config

10

Compute Units

8

-

640

Shading Units

640

40

TMUs

32

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

15.20 GPixel/s

Pixel Rate

11.68 GPixel/s

38.00 GTexel/s

Texture Rate

23.36 GTexel/s

-

1216 GFLOPS

FP32 (float)

934.4 GFLOPS

76.00 GFLOPS

FP64 (double)

186.9 GFLOPS

Board Design

80W

TDP

100W

250 W

Suggested PSU

300 W

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Cape Verde

GPU Name

RV740

Cape Verde XT

GPU Variant

RV740 PRO

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.5 billion

Transistors

0.826 billion

123 mm²

Die Size

137 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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