ATI Radeon HD 4700 vs AMD Radeon HD 7870 XT

VS

ATI Radeon HD 4700 AMD Radeon HD 7870 XT

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4700 and 2GB VRAM Radeon HD 7870 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4700 's Advantages

Lower TDP (50W vs 185W)

AMD Radeon HD 7870 XT 's Advantages

Released 2 years and 9 months late

Boost Clock975MHz

Larger VRAM bandwidth (192.0GB/s vs 12.80GB/s)

1216 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4700

0.384 TFLOPS

Radeon HD 7870 XT +679%

2.995 TFLOPS

Radeon HD 4700

VS

Radeon HD 7870 XT

Graphics Card

Feb 2010

Release Date

Nov 2012

Radeon R700

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

925 MHz

-

Boost Clock

975 MHz

400 MHz

Memory Clock

1500 MHz

Memory

512MB

Memory Size

2GB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

256bit

12.80GB/s

Bandwidth

192.0GB/s

Render Config

-

SM Count

-

4

Compute Units

24

320

Shading Units

1536

32

TMUs

96

8

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

512 KB

Theoretical Performance

4.800 GPixel/s

Pixel Rate

31.20 GPixel/s

19.20 GTexel/s

Texture Rate

93.60 GTexel/s

-

FP16 (half)

-

384.0 GFLOPS

FP32 (float)

2.995 TFLOPS

-

FP64 (double)

748.8 GFLOPS

Graphics Processor

RV730

GPU Name

Tahiti

RV730 CE

GPU Variant

Tahiti LE (215-0821122)

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.514 billion

Transistors

4.313 billion

146 mm²

Die Size

352 mm²

Board Design

50W

TDP

185W

250 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

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

-

Power Connectors

2x 6-pin

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

-

CUDA

-

4.1

Shader Model

5.1

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