AMD Radeon R7 265 vs ATI Radeon HD 4850 X2

VS

AMD Radeon R7 265

ATI Radeon HD 4850 X2

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 265 and 512MB VRAM Radeon HD 4850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 265 's Advantages

Released 5 years and 3 months late

Boost Clock925MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (179.2GB/s vs 63.68GB/s)

224 additional rendering cores

Lower TDP (150W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R7 265 +89%

1.894 TFLOPS

Radeon HD 4850 X2

1 TFLOPS

Radeon R7 265

VS

Radeon HD 4850 X2

Graphics Card

Feb 2014

Release Date

Nov 2008

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

995 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

179.2GB/s

Bandwidth

63.68GB/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

10.00 GPixel/s

59.20 GTexel/s

Texture Rate

25.00 GTexel/s

-

1.894 TFLOPS

FP32 (float)

1000 GFLOPS

118.4 GFLOPS

FP64 (double)

200.0 GFLOPS

Board Design

150W

TDP

250W

450 W

Suggested PSU

600 W

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

Outputs

4x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Pitcairn

GPU Name

R700

Pitcairn PRO (215-0828062)

GPU Variant

R700 PRO (215-0669065)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.8 billion

Transistors

0.956 billion

212 mm²

Die Size

256 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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