AMD Radeon HD 7870 XT vs ATI Radeon X1650 GT

VS

AMD Radeon HD 7870 XT

ATI Radeon X1650 GT

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 XT and 128MB VRAM Radeon X1650 GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870 XT 's Advantages

Released 5 years and 6 months late

Boost Clock975MHz

More VRAM (2GB vs 128GB)

Larger VRAM bandwidth (192.0GB/s vs 12.80GB/s)

1536 additional rendering cores

Score

Radeon HD 7870 XT

VS

Radeon X1650 GT

Graphics Card

Nov 2012

Release Date

May 2007

Southern Islands

Generation

Radeon R500 PCIe

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

925 MHz

Base Clock

-

975 MHz

Boost Clock

-

1500 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

128MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

192.0GB/s

Bandwidth

12.80GB/s

Render Config

24

Compute Units

-

1536

Shading Units

-

96

TMUs

8

32

ROPs

8

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

-

Theoretical Performance

31.20 GPixel/s

Pixel Rate

3.200 GPixel/s

93.60 GTexel/s

Texture Rate

3.200 GTexel/s

-

2.995 TFLOPS

FP32 (float)

-

748.8 GFLOPS

FP64 (double)

-

Board Design

185W

TDP

Unknown

450 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x VGA 1x S-Video

2x 6-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

RV560

Tahiti LE (215-0821122)

GPU Variant

RV560 GT

GCN 1.0

Architecture

Ultra-Threaded SE

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

4.313 billion

Transistors

0.312 billion

352 mm²

Die Size

230 mm²

Graphics Features

12 (11_1)

DirectX

9.0c (9_3)

4.6

OpenGL

2.1

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

3.0

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