AMD Radeon R9 280X2 vs AMD Radeon HD 7850

VS

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280X2 and 2GB VRAM Radeon HD 7850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 280X2 's Advantages

Boost Clock1000MHz

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (288.0GB/s vs 153.6GB/s)

1024 additional rendering cores

AMD Radeon HD 7850 's Advantages

Lower TDP (130W vs 375W)

Score

Benchmark

FP32 (float)

Radeon R9 280X2 +132%

4.096 TFLOPS

Radeon HD 7850

1.761 TFLOPS

Radeon R9 280X2

VS

Radeon HD 7850

Graphics Card

Unknown

Release Date

Mar 2012

Volcanic Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

950 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1500 MHz

Memory Clock

1200 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

288.0GB/s

Bandwidth

153.6GB/s

Render Config

-

SM Count

-

32

Compute Units

16

2048

Shading Units

1024

128

TMUs

64

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

512 KB

Theoretical Performance

32.00 GPixel/s

Pixel Rate

27.52 GPixel/s

128.0 GTexel/s

Texture Rate

55.04 GTexel/s

-

FP16 (half)

-

4.096 TFLOPS

FP32 (float)

1.761 TFLOPS

1024 GFLOPS

FP64 (double)

110.1 GFLOPS

Graphics Processor

Tahiti

GPU Name

Pitcairn

Tahiti XTL (215-0821065)

GPU Variant

Pitcairn PRO (215-0828062)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

2.8 billion

352 mm²

Die Size

212 mm²

Board Design

375W

TDP

130W

750 W

Suggested PSU

300 W

6x mini-DisplayPort 1.2

Outputs

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

3x 8-pin

Power Connectors

1x 6-pin

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

CUDA

-

5.1

Shader Model

5.1

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