ATI Radeon HD 4870 X2 vs AMD Radeon R7 250 OEM

VS

ATI Radeon HD 4870 X2

AMD Radeon R7 250 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4870 X2 and 2GB VRAM Radeon R7 250 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4870 X2 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 32.00GB/s)

416 additional rendering cores

AMD Radeon R7 250 OEM 's Advantages

Released 5 years and 2 months late

Boost Clock1050MHz

More VRAM (2GB vs 1024GB)

Lower TDP (65W vs 286W)

Score

Benchmark

FP32 (float)

Radeon HD 4870 X2 +48%

1.2 TFLOPS

Radeon R7 250 OEM

0.806 TFLOPS

Radeon HD 4870 X2

VS

Radeon R7 250 OEM

Graphics Card

Aug 2008

Release Date

Oct 2013

Radeon R700

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1000 MHz

-

Boost Clock

1050 MHz

900 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

32.00GB/s

Render Config

10

Compute Units

6

-

800

Shading Units

384

40

TMUs

24

16

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

8.400 GPixel/s

30.00 GTexel/s

Texture Rate

25.20 GTexel/s

-

1200 GFLOPS

FP32 (float)

806.4 GFLOPS

240.0 GFLOPS

FP64 (double)

50.40 GFLOPS

Board Design

286W

TDP

65W

600 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

R700

GPU Name

Oland

R700 XT (215-0669045)

GPU Variant

Oland XT (215-0837000)

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.956 billion

Transistors

0.95 billion

256 mm²

Die Size

77 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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