AMD Radeon R7 265 vs ATI Radeon HD 2900 XT

VS

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

Main Differences

AMD Radeon R7 265 's Advantages

Released 6 years and 9 months late

Boost Clock925MHz

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

704 additional rendering cores

Lower TDP (150W vs 215W)

Score

Benchmark

FP32 (float)

Radeon R7 265 +297%

1.894 TFLOPS

Radeon HD 2900 XT

0.476 TFLOPS

Radeon R7 265

VS

Radeon HD 2900 XT

Graphics Card

Feb 2014

Release Date

May 2007

Volcanic Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

900 MHz

Base Clock

-

925 MHz

Boost Clock

-

1400 MHz

Memory Clock

828 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

512bit

179.2GB/s

Bandwidth

106.0GB/s

Render Config

-

SM Count

-

16

Compute Units

4

1024

Shading Units

320

64

TMUs

16

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

256 KB

Theoretical Performance

29.60 GPixel/s

Pixel Rate

11.89 GPixel/s

59.20 GTexel/s

Texture Rate

11.89 GTexel/s

-

FP16 (half)

-

1.894 TFLOPS

FP32 (float)

475.5 GFLOPS

118.4 GFLOPS

FP64 (double)

-

Graphics Processor

Pitcairn

GPU Name

R600

Pitcairn PRO (215-0828062)

GPU Variant

R600 XT (215RGMDKA13FG)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

2.8 billion

Transistors

0.72 billion

212 mm²

Die Size

420 mm²

Board Design

150W

TDP

215W

450 W

Suggested PSU

550 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

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

-

CUDA

-

5.1

Shader Model

4.0

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