ATI Radeon HD 2900 XTX vs AMD Radeon RX 480

VS

ATI Radeon HD 2900 XTX

AMD Radeon RX 480

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XTX and 8GB VRAM Radeon RX 480 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 480 's Advantages

Boost Clock1266MHz

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (256.0GB/s vs 106.0GB/s)

1984 additional rendering cores

Lower TDP (150W vs 240W)

Score

Benchmark

FP32 (float)

Radeon HD 2900 XTX

0.476 TFLOPS

Radeon RX 480 +1125%

5.834 TFLOPS

Radeon HD 2900 XTX

VS

Radeon RX 480

Graphics Card

Unknown

Release Date

Jun 2016

Radeon R600

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1120 MHz

-

Boost Clock

1266 MHz

828 MHz

Memory Clock

2000 MHz

Memory

512MB

Memory Size

8GB

GDDR3

Memory Type

GDDR5

512bit

Memory Bus

256bit

106.0GB/s

Bandwidth

256.0GB/s

Render Config

4

Compute Units

36

-

320

Shading Units

2304

16

TMUs

144

16

ROPs

32

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

40.51 GPixel/s

11.89 GTexel/s

Texture Rate

182.3 GTexel/s

-

FP16 (half)

5.834 TFLOPS

475.5 GFLOPS

FP32 (float)

5.834 TFLOPS

-

FP64 (double)

364.6 GFLOPS

Board Design

240W

TDP

150W

550 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

R600

GPU Name

Ellesmere

R600 XTX A11 (215RGMDKA11FG)

GPU Variant

Polaris 10 XT (215-0876184)

TeraScale

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

80 nm

Process Size

14 nm

0.72 billion

Transistors

5.7 billion

420 mm²

Die Size

232 mm²

Graphics Features

10.0 (10_0)

DirectX

12 (12_0)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

2.1

N/A

Vulkan

1.2

-

4.0

Shader Model

6.4

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