AMD Radeon HD 6390 vs AMD Radeon R7 250 OEM

VS

AMD Radeon HD 6390

AMD Radeon R7 250 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6390 and 2GB VRAM Radeon R7 250 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6390 's Advantages

Lower TDP (39W vs 65W)

AMD Radeon R7 250 OEM 's Advantages

Released 2 years and 3 months late

Boost Clock1050MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (32.00GB/s vs 16.00GB/s)

64 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6390

0.352 TFLOPS

Radeon R7 250 OEM +128%

0.806 TFLOPS

Radeon HD 6390

VS

Radeon R7 250 OEM

Graphics Card

Jul 2011

Release Date

Oct 2013

Northern Islands

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

500 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

2GB

DDR2

Memory Type

DDR3

128bit

Memory Bus

128bit

16.00GB/s

Bandwidth

32.00GB/s

Render Config

4

Compute Units

6

-

320

Shading Units

384

16

TMUs

24

8

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

8.400 GPixel/s

8.800 GTexel/s

Texture Rate

25.20 GTexel/s

-

352.0 GFLOPS

FP32 (float)

806.4 GFLOPS

-

FP64 (double)

50.40 GFLOPS

Board Design

39W

TDP

65W

200 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

None

Power Connectors

None

Graphics Processor

Redwood

GPU Name

Oland

Redwood LE

GPU Variant

Oland XT (215-0837000)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.627 billion

Transistors

0.95 billion

104 mm²

Die Size

77 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

5.0

Shader Model

5.1

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