AMD Radeon HD 7950 Monica BIOS 2 vs ATI Radeon HD 4870 X2

VS

AMD Radeon HD 7950 Monica BIOS 2

ATI Radeon HD 4870 X2

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Monica BIOS 2 and 1024MB VRAM Radeon HD 4870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950 Monica BIOS 2 's Advantages

Released 3 years and 5 months late

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (240.0GB/s vs 115.2GB/s)

Lower TDP (85W vs 286W)

ATI Radeon HD 4870 X2 's Advantages

32 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7950 Monica BIOS 2 +2%

1.229 TFLOPS

Radeon HD 4870 X2

1.2 TFLOPS

Radeon HD 7950 Monica BIOS 2

VS

Radeon HD 4870 X2

Graphics Card

Jan 2012

Release Date

Aug 2008

Southern Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

900 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

240.0GB/s

Bandwidth

115.2GB/s

Render Config

12

Compute Units

10

-

768

Shading Units

800

48

TMUs

40

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

256 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

12.00 GPixel/s

38.40 GTexel/s

Texture Rate

30.00 GTexel/s

-

1229 GFLOPS

FP32 (float)

1200 GFLOPS

307.2 GFLOPS

FP64 (double)

240.0 GFLOPS

Board Design

85W

TDP

286W

250 W

Suggested PSU

600 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Tahiti

GPU Name

R700

Tahiti PRO (215-0821056)

GPU Variant

R700 XT (215-0669045)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

0.956 billion

352 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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