ATI Radeon HD 2900 XTX vs AMD Radeon R9 295X2

VS

ATI Radeon HD 2900 XTX

AMD Radeon R9 295X2

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

Main Differences

ATI Radeon HD 2900 XTX 's Advantages

Lower TDP (240W vs 500W)

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

Score

Benchmark

FP32 (float)

Radeon HD 2900 XTX

0.476 TFLOPS

Radeon R9 295X2 +1104%

5.733 TFLOPS

Radeon HD 2900 XTX

VS

Radeon R9 295X2

Graphics Card

Unknown

Release Date

Apr 2014

Radeon R600

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

828 MHz

Memory Clock

1250 MHz

Memory

512MB

Memory Size

4GB

GDDR3

Memory Type

GDDR5

512bit

Memory Bus

512bit

106.0GB/s

Bandwidth

320.0GB/s

Render Config

4

Compute Units

44

-

320

Shading Units

2816

16

TMUs

176

16

ROPs

64

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

65.15 GPixel/s

11.89 GTexel/s

Texture Rate

179.2 GTexel/s

-

475.5 GFLOPS

FP32 (float)

5.733 TFLOPS

-

FP64 (double)

716.7 GFLOPS

Board Design

240W

TDP

500W

550 W

Suggested PSU

900 W

2x DVI 1x S-Video

Outputs

1x DVI 4x mini-DisplayPort 1.2

2x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

R600

GPU Name

Vesuvius

R600 XTX A11 (215RGMDKA11FG)

GPU Variant

Vesuvius XT (215-0852022)

TeraScale

Architecture

GCN 2.0

TSMC

Foundry

TSMC

80 nm

Process Size

28 nm

0.72 billion

Transistors

6.2 billion

420 mm²

Die Size

438 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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