AMD Radeon R7 250X vs ATI Radeon HD 2900 XTX

VS

AMD Radeon R7 250X

ATI Radeon HD 2900 XTX

We compared two Desktop platform GPUs: 1024MB VRAM Radeon R7 250X 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 R7 250X 's Advantages

More VRAM (1024GB vs 512GB)

320 additional rendering cores

Lower TDP (80W vs 240W)

ATI Radeon HD 2900 XTX 's Advantages

Larger VRAM bandwidth (106.0GB/s vs 72.00GB/s)

Score

Benchmark

FP32 (float)

Radeon R7 250X +155%

1.216 TFLOPS

Radeon HD 2900 XTX

0.476 TFLOPS

Radeon R7 250X

VS

Radeon HD 2900 XTX

Graphics Card

Feb 2014

Release Date

Unknown

Volcanic Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1125 MHz

Memory Clock

828 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

512bit

72.00GB/s

Bandwidth

106.0GB/s

Render Config

10

Compute Units

4

-

640

Shading Units

320

40

TMUs

16

ROPs

16

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

256 KB

-

Theoretical Performance

15.20 GPixel/s

Pixel Rate

11.89 GPixel/s

38.00 GTexel/s

Texture Rate

11.89 GTexel/s

-

1216 GFLOPS

FP32 (float)

475.5 GFLOPS

76.00 GFLOPS

FP64 (double)

-

Board Design

80W

TDP

240W

250 W

Suggested PSU

550 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Cape Verde

GPU Name

R600

Cape Verde XT

GPU Variant

R600 XTX A11 (215RGMDKA11FG)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

1.5 billion

Transistors

0.72 billion

123 mm²

Die Size

420 mm²

Graphics Features

12 (11_1)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3 (full) 4.0 (partial)

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

4.0

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