ATI Radeon HD 2900 XTX vs AMD Radeon R9 380 OEM

VS

ATI Radeon HD 2900 XTX

AMD Radeon R9 380 OEM

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XTX and 4GB VRAM Radeon R9 380 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 380 OEM 's Advantages

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (176.0GB/s vs 106.0GB/s)

1472 additional rendering cores

Lower TDP (190W vs 240W)

Score

Benchmark

FP32 (float)

Radeon HD 2900 XTX

0.476 TFLOPS

Radeon R9 380 OEM +591%

3.29 TFLOPS

Radeon HD 2900 XTX

VS

Radeon R9 380 OEM

Graphics Card

Unknown

Release Date

May 2015

Radeon R600

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

828 MHz

Memory Clock

1375 MHz

Memory

512MB

Memory Size

4GB

GDDR3

Memory Type

GDDR5

512bit

Memory Bus

256bit

106.0GB/s

Bandwidth

176.0GB/s

Render Config

4

Compute Units

28

-

320

Shading Units

1792

16

TMUs

112

16

ROPs

32

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

29.38 GPixel/s

11.89 GTexel/s

Texture Rate

102.8 GTexel/s

-

FP16 (half)

3.290 TFLOPS

475.5 GFLOPS

FP32 (float)

3.290 TFLOPS

-

FP64 (double)

205.6 GFLOPS

Board Design

240W

TDP

190W

550 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

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

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

R600

GPU Name

Antigua

R600 XTX A11 (215RGMDKA11FG)

GPU Variant

Antigua PRO (215-0877000)

TeraScale

Architecture

GCN 3.0

TSMC

Foundry

TSMC

80 nm

Process Size

28 nm

0.72 billion

Transistors

5 billion

420 mm²

Die Size

366 mm²

Graphics Features

10.0 (10_0)

DirectX

12 (12_0)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

2.0

N/A

Vulkan

1.2

-

4.0

Shader Model

6.3

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