AMD Radeon HD 7870 XT vs ATI Radeon HD 4750

VS

AMD Radeon HD 7870 XT ATI Radeon HD 4750

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 XT 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 HD 7870 XT 's Advantages

Released 3 years and 2 months late

Boost Clock975MHz

Larger VRAM bandwidth (192.0GB/s vs 51.20GB/s)

896 additional rendering cores

ATI Radeon HD 4750 's Advantages

Lower TDP (100W vs 185W)

Score

Benchmark

FP32 (float)

Radeon HD 7870 XT +220%

2.995 TFLOPS

Radeon HD 4750

0.934 TFLOPS

Radeon HD 7870 XT

VS

Radeon HD 4750

Graphics Card

Nov 2012

Release Date

Sep 2009

Southern Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

925 MHz

Base Clock

-

975 MHz

Boost Clock

-

1500 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

192.0GB/s

Bandwidth

51.20GB/s

Render Config

-

SM Count

-

24

Compute Units

8

1536

Shading Units

640

96

TMUs

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

Theoretical Performance

31.20 GPixel/s

Pixel Rate

11.68 GPixel/s

93.60 GTexel/s

Texture Rate

23.36 GTexel/s

-

FP16 (half)

-

2.995 TFLOPS

FP32 (float)

934.4 GFLOPS

748.8 GFLOPS

FP64 (double)

186.9 GFLOPS

Graphics Processor

Tahiti

GPU Name

RV740

Tahiti LE (215-0821122)

GPU Variant

RV740 PRO

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

0.826 billion

352 mm²

Die Size

137 mm²

Board Design

185W

TDP

100W

450 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

1x 6-pin

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

-

CUDA

-

5.1

Shader Model

4.1

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