ATI Radeon HD 2900 XT vs AMD Radeon R7 265X OEM

VS

ATI Radeon HD 2900 XT

AMD Radeon R7 265X OEM

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XT and 2GB VRAM Radeon R7 265X OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 265X OEM 's Advantages

Released 7 years and 3 months late

Boost Clock925MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (179.2GB/s vs 106.0GB/s)

960 additional rendering cores

Lower TDP (150W vs 215W)

Score

Benchmark

FP32 (float)

Radeon HD 2900 XT

0.476 TFLOPS

Radeon R7 265X OEM +397%

2.368 TFLOPS

Radeon HD 2900 XT

VS

Radeon R7 265X OEM

Graphics Card

May 2007

Release Date

Aug 2014

Radeon R600

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

925 MHz

828 MHz

Memory Clock

1400 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

512bit

Memory Bus

256bit

106.0GB/s

Bandwidth

179.2GB/s

Render Config

4

Compute Units

20

-

320

Shading Units

1280

16

TMUs

80

16

ROPs

32

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

29.60 GPixel/s

11.89 GTexel/s

Texture Rate

74.00 GTexel/s

-

475.5 GFLOPS

FP32 (float)

2.368 TFLOPS

-

FP64 (double)

148.0 GFLOPS

Board Design

215W

TDP

150W

550 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

R600

GPU Name

Curacao

R600 XT (215RGMDKA13FG)

GPU Variant

Curacao PRO (215-0848000)

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

80 nm

Process Size

28 nm

0.72 billion

Transistors

2.8 billion

420 mm²

Die Size

212 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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