ATI Radeon HD 4870 vs AMD Radeon R7 250X

VS

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 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 4870 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 72.00GB/s)

160 additional rendering cores

AMD Radeon R7 250X 's Advantages

Released 5 years and 8 months late

More VRAM (1024GB vs 512GB)

Lower TDP (80W vs 150W)

Score

Benchmark

FP32 (float)

Radeon HD 4870

1.2 TFLOPS

Radeon R7 250X +1%

1.216 TFLOPS

Radeon HD 4870

VS

Radeon R7 250X

Graphics Card

Jun 2008

Release Date

Feb 2014

Radeon R700

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

1125 MHz

Memory

512MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

72.00GB/s

Render Config

-

SM Count

-

10

Compute Units

10

800

Shading Units

640

40

TMUs

40

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

Theoretical Performance

12.00 GPixel/s

Pixel Rate

15.20 GPixel/s

30.00 GTexel/s

Texture Rate

38.00 GTexel/s

-

FP16 (half)

-

1200 GFLOPS

FP32 (float)

1216 GFLOPS

240.0 GFLOPS

FP64 (double)

76.00 GFLOPS

Graphics Processor

RV770

GPU Name

Cape Verde

RV770 XT (215-0669049)

GPU Variant

Cape Verde XT

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.956 billion

Transistors

1.5 billion

256 mm²

Die Size

123 mm²

Board Design

150W

TDP

80W

450 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

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

2x 6-pin

Power Connectors

1x 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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