AMD Radeon R9 295X2 vs ATI Radeon HD 2900 XTX

VS

AMD Radeon R9 295X2

ATI Radeon HD 2900 XTX

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 295X2 and 512MB VRAM Radeon HD 2900 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 295X2 's Advantages

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (320.0GB/s vs 106.0GB/s)

2496 additional rendering cores

ATI Radeon HD 2900 XTX 's Advantages

Lower TDP (240W vs 500W)

Score

Benchmark

FP32 (float)

Radeon R9 295X2 +1104%

5.733 TFLOPS

Radeon HD 2900 XTX

0.476 TFLOPS

Radeon R9 295X2

VS

Radeon HD 2900 XTX

Graphics Card

Apr 2014

Release Date

Unknown

Volcanic Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

828 MHz

Memory

4GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

512bit

Memory Bus

512bit

320.0GB/s

Bandwidth

106.0GB/s

Render Config

44

Compute Units

4

-

2816

Shading Units

320

176

TMUs

16

64

ROPs

16

-

16 KB (per CU)

L1 Cache

-

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

65.15 GPixel/s

Pixel Rate

11.89 GPixel/s

179.2 GTexel/s

Texture Rate

11.89 GTexel/s

-

5.733 TFLOPS

FP32 (float)

475.5 GFLOPS

716.7 GFLOPS

FP64 (double)

-

Board Design

500W

TDP

240W

900 W

Suggested PSU

550 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Vesuvius

GPU Name

R600

Vesuvius XT (215-0852022)

GPU Variant

R600 XTX A11 (215RGMDKA11FG)

GCN 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

6.2 billion

Transistors

0.72 billion

438 mm²

Die Size

420 mm²

Graphics Features

12 (12_0)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3 (full) 4.0 (partial)

2.0

OpenCL

N/A

1.2

Vulkan

N/A

-

6.3

Shader Model

4.0

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