ATI Radeon HD 2900 XTX vs AMD Radeon RX 460

VS

ATI Radeon HD 2900 XTX

AMD Radeon RX 460

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XTX and 2GB VRAM Radeon RX 460 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 460 's Advantages

Boost Clock1200MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (112.0GB/s vs 106.0GB/s)

576 additional rendering cores

Lower TDP (75W vs 240W)

Score

Benchmark

FP32 (float)

Radeon HD 2900 XTX

0.476 TFLOPS

Radeon RX 460 +351%

2.15 TFLOPS

Radeon HD 2900 XTX

VS

Radeon RX 460

Graphics Card

Unknown

Release Date

Aug 2016

Radeon R600

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1090 MHz

-

Boost Clock

1200 MHz

828 MHz

Memory Clock

1750 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

512bit

Memory Bus

128bit

106.0GB/s

Bandwidth

112.0GB/s

Render Config

4

Compute Units

14

-

320

Shading Units

896

16

TMUs

56

16

ROPs

16

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

19.20 GPixel/s

11.89 GTexel/s

Texture Rate

67.20 GTexel/s

-

FP16 (half)

2.150 TFLOPS

475.5 GFLOPS

FP32 (float)

2.150 TFLOPS

-

FP64 (double)

134.4 GFLOPS

Board Design

240W

TDP

75W

550 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

2x 6-pin

Power Connectors

None

Graphics Processor

R600

GPU Name

Baffin

R600 XTX A11 (215RGMDKA11FG)

GPU Variant

Baffin PRO

TeraScale

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

80 nm

Process Size

14 nm

0.72 billion

Transistors

3 billion

420 mm²

Die Size

123 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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