ATI Radeon HD 4450 vs AMD Radeon R7 250X

VS

ATI Radeon HD 4450

AMD Radeon R7 250X

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4450 and 1024MB VRAM Radeon R7 250X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4450 's Advantages

Lower TDP (25W vs 80W)

AMD Radeon R7 250X 's Advantages

Released 2 years and 3 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (72.00GB/s vs 6.400GB/s)

560 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4450

0.096 TFLOPS

Radeon R7 250X +1166%

1.216 TFLOPS

Radeon HD 4450

VS

Radeon R7 250X

Graphics Card

Nov 2011

Release Date

Feb 2014

Radeon R700

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

400 MHz

Memory Clock

1125 MHz

Memory

512MB

Memory Size

1024MB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

128bit

6.400GB/s

Bandwidth

72.00GB/s

Render Config

1

Compute Units

10

-

80

Shading Units

640

8

TMUs

40

4

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

256 KB

-

Theoretical Performance

2.400 GPixel/s

Pixel Rate

15.20 GPixel/s

4.800 GTexel/s

Texture Rate

38.00 GTexel/s

-

96.00 GFLOPS

FP32 (float)

1216 GFLOPS

-

FP64 (double)

76.00 GFLOPS

Board Design

25W

TDP

80W

200 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a 1x DisplayPort 1.0

Outputs

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

None

Power Connectors

1x 6-pin

Graphics Processor

RV710

GPU Name

Cape Verde

RV710 (215-0725016)

GPU Variant

Cape Verde XT

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.242 billion

Transistors

1.5 billion

73 mm²

Die Size

123 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

-

4.1

Shader Model

5.1

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