ATI Radeon HD 2900 XT vs AMD Radeon R7 250

VS

ATI Radeon HD 2900 XT

AMD Radeon R7 250

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XT and 1024MB VRAM Radeon R7 250 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2900 XT 's Advantages

Larger VRAM bandwidth (106.0GB/s vs 28.80GB/s)

AMD Radeon R7 250 's Advantages

Released 6 years and 5 months late

More VRAM (1024GB vs 512GB)

192 additional rendering cores

Lower TDP (55W vs 215W)

Score

Benchmark

FP32 (float)

Radeon HD 2900 XT

0.476 TFLOPS

Radeon R7 250 +50%

0.717 TFLOPS

Radeon HD 2900 XT

VS

Radeon R7 250

Graphics Card

May 2007

Release Date

Oct 2013

Radeon R600

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

828 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

DDR3

512bit

Memory Bus

128bit

106.0GB/s

Bandwidth

28.80GB/s

Render Config

4

Compute Units

8

-

320

Shading Units

512

16

TMUs

32

16

ROPs

16

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

11.20 GPixel/s

11.89 GTexel/s

Texture Rate

22.40 GTexel/s

-

475.5 GFLOPS

FP32 (float)

716.8 GFLOPS

-

FP64 (double)

44.80 GFLOPS

Board Design

215W

TDP

55W

550 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

R600

GPU Name

Cape Verde

R600 XT (215RGMDKA13FG)

GPU Variant

Cape Verde PRO

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

80 nm

Process Size

28 nm

0.72 billion

Transistors

1.5 billion

420 mm²

Die Size

123 mm²

Graphics Features

10.0 (10_0)

DirectX

12 (11_1)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

1.2

N/A

Vulkan

1.2

-

4.0

Shader Model

5.1

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