ATI Radeon HD 4890 vs AMD Radeon R7 265

VS

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4890 and 2GB VRAM Radeon R7 265 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 1GB)

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

224 additional rendering cores

Lower TDP (150W vs 190W)

Score

Benchmark

FP32 (float)

Radeon HD 4890

1.36 TFLOPS

Radeon R7 265 +39%

1.894 TFLOPS

Radeon HD 4890

VS

Radeon R7 265

Graphics Card

Apr 2009

Release Date

Feb 2014

Radeon R700

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

925 MHz

975 MHz

Memory Clock

1400 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

124.8GB/s

Bandwidth

179.2GB/s

Render Config

-

SM Count

-

10

Compute Units

16

800

Shading Units

1024

40

TMUs

64

16

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

Theoretical Performance

13.60 GPixel/s

Pixel Rate

29.60 GPixel/s

34.00 GTexel/s

Texture Rate

59.20 GTexel/s

-

FP16 (half)

-

1360 GFLOPS

FP32 (float)

1.894 TFLOPS

272.0 GFLOPS

FP64 (double)

118.4 GFLOPS

Graphics Processor

RV790

GPU Name

Pitcairn

RV790 XT (215-0758016)

GPU Variant

Pitcairn PRO (215-0828062)

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.959 billion

Transistors

2.8 billion

282 mm²

Die Size

212 mm²

Board Design

190W

TDP

150W

450 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

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

2x 6-pin

Power Connectors

1x 6-pin

Graphics Features

10.1 (10_1)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

-

CUDA

-

4.1

Shader Model

5.1

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