AMD Radeon R7 250X vs AMD Radeon R9 280X2

VS

AMD Radeon R7 250X

AMD Radeon R9 280X2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon R7 250X and 3GB VRAM Radeon R9 280X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 250X 's Advantages

Lower TDP (80W vs 375W)

AMD Radeon R9 280X2 's Advantages

Boost Clock1000MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (288.0GB/s vs 72.00GB/s)

1408 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R7 250X

1.216 TFLOPS

Radeon R9 280X2 +236%

4.096 TFLOPS

Radeon R7 250X

VS

Radeon R9 280X2

Graphics Card

Feb 2014

Release Date

Unknown

Volcanic Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

950 MHz

-

Boost Clock

1000 MHz

1125 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

72.00GB/s

Bandwidth

288.0GB/s

Render Config

10

Compute Units

32

-

640

Shading Units

2048

40

TMUs

128

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

768 KB

-

Theoretical Performance

15.20 GPixel/s

Pixel Rate

32.00 GPixel/s

38.00 GTexel/s

Texture Rate

128.0 GTexel/s

-

1216 GFLOPS

FP32 (float)

4.096 TFLOPS

76.00 GFLOPS

FP64 (double)

1024 GFLOPS

Board Design

80W

TDP

375W

250 W

Suggested PSU

750 W

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

Outputs

6x mini-DisplayPort 1.2

1x 6-pin

Power Connectors

3x 8-pin

Graphics Processor

Cape Verde

GPU Name

Tahiti

Cape Verde XT

GPU Variant

Tahiti XTL (215-0821065)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

4.313 billion

123 mm²

Die Size

352 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

5.1

Shader Model

5.1

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