AMD Radeon HD 7850 vs ATI Radeon HD 4650 AGP

VS

AMD Radeon HD 7850 ATI Radeon HD 4650 AGP

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7850 and 512MB VRAM Radeon HD 4650 AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7850 's Advantages

Released 3 years and 6 months late

Larger VRAM bandwidth (153.6GB/s vs 12.80GB/s)

704 additional rendering cores

ATI Radeon HD 4650 AGP 's Advantages

Lower TDP (48W vs 130W)

Score

Benchmark

FP32 (float)

Radeon HD 7850 +358%

1.761 TFLOPS

Radeon HD 4650 AGP

0.384 TFLOPS

Radeon HD 7850

VS

Radeon HD 4650 AGP

Graphics Card

Mar 2012

Release Date

Sep 2008

Southern Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

AGP 8x

Clock Speeds

-

Base Clock

-

Boost Clock

-

1200 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

12.80GB/s

Render Config

-

SM Count

-

16

Compute Units

4

1024

Shading Units

320

64

TMUs

32

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

Theoretical Performance

27.52 GPixel/s

Pixel Rate

4.800 GPixel/s

55.04 GTexel/s

Texture Rate

19.20 GTexel/s

-

FP16 (half)

-

1.761 TFLOPS

FP32 (float)

384.0 GFLOPS

110.1 GFLOPS

FP64 (double)

-

Graphics Processor

Pitcairn

GPU Name

RV730

Pitcairn PRO (215-0828062)

GPU Variant

RV730 PRO (215-0719056)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.8 billion

Transistors

0.514 billion

212 mm²

Die Size

146 mm²

Board Design

130W

TDP

48W

300 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

-

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

-

CUDA

-

5.1

Shader Model

4.1

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