AMD Radeon HD 7870 XT vs AMD Radeon HD 6250

VS

AMD Radeon HD 7870 XT

AMD Radeon HD 6250

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 XT and 512MB VRAM Radeon HD 6250 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 1 years and 10 months late

Boost Clock975MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (192.0GB/s vs 8.000GB/s)

1456 additional rendering cores

AMD Radeon HD 6250 's Advantages

Lower TDP (19W vs 185W)

Score

Benchmark

FP32 (float)

Radeon HD 7870 XT +2779%

2.995 TFLOPS

Radeon HD 6250

0.104 TFLOPS

Radeon HD 7870 XT

VS

Radeon HD 6250

Graphics Card

Nov 2012

Release Date

Jan 2011

Southern Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

925 MHz

Base Clock

-

975 MHz

Boost Clock

-

1500 MHz

Memory Clock

500 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

64bit

192.0GB/s

Bandwidth

8.000GB/s

Render Config

24

Compute Units

2

-

1536

Shading Units

80

96

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

31.20 GPixel/s

Pixel Rate

2.600 GPixel/s

93.60 GTexel/s

Texture Rate

5.200 GTexel/s

-

2.995 TFLOPS

FP32 (float)

104.0 GFLOPS

748.8 GFLOPS

FP64 (double)

-

Board Design

185W

TDP

19W

450 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a

2x 6-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

Cedar

Tahiti LE (215-0821122)

GPU Variant

Cedar PRO

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

0.292 billion

352 mm²

Die Size

59 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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