AMD Radeon R7 265 vs ATI Radeon HD 4890

VS

AMD Radeon R7 265

ATI Radeon HD 4890

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 265 and 1024MB VRAM Radeon HD 4890 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 265 's Advantages

Released 4 years and 10 months late

Boost Clock925MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (179.2GB/s vs 124.8GB/s)

224 additional rendering cores

Lower TDP (150W vs 190W)

Score

Benchmark

FP32 (float)

Radeon R7 265 +39%

1.894 TFLOPS

Radeon HD 4890

1.36 TFLOPS

Radeon R7 265

VS

Radeon HD 4890

Graphics Card

Feb 2014

Release Date

Apr 2009

Volcanic Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

900 MHz

Base Clock

-

925 MHz

Boost Clock

-

1400 MHz

Memory Clock

975 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

179.2GB/s

Bandwidth

124.8GB/s

Render Config

16

Compute Units

10

-

1024

Shading Units

800

64

TMUs

40

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

13.60 GPixel/s

59.20 GTexel/s

Texture Rate

34.00 GTexel/s

-

1.894 TFLOPS

FP32 (float)

1360 GFLOPS

118.4 GFLOPS

FP64 (double)

272.0 GFLOPS

Board Design

150W

TDP

190W

450 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Pitcairn

GPU Name

RV790

Pitcairn PRO (215-0828062)

GPU Variant

RV790 XT (215-0758016)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.8 billion

Transistors

0.959 billion

212 mm²

Die Size

282 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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