ATI Radeon HD 4870 X2 vs AMD Radeon HD 7950 Monica BIOS 1

VS

ATI Radeon HD 4870 X2 AMD Radeon HD 7950 Monica BIOS 1

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4870 X2 and 3GB VRAM Radeon HD 7950 Monica BIOS 1 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950 Monica BIOS 1 's Advantages

Released 3 years and 5 months late

More VRAM (3GB vs 1GB)

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

736 additional rendering cores

Lower TDP (185W vs 286W)

Score

Benchmark

FP32 (float)

Radeon HD 4870 X2

1.2 TFLOPS

Radeon HD 7950 Monica BIOS 1 +136%

2.842 TFLOPS

Radeon HD 4870 X2

VS

Radeon HD 7950 Monica BIOS 1

Graphics Card

Aug 2008

Release Date

Jan 2012

Radeon R700

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

115.2GB/s

Bandwidth

240.0GB/s

Render Config

-

SM Count

-

10

Compute Units

24

800

Shading Units

1536

40

TMUs

96

16

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

768 KB

Theoretical Performance

12.00 GPixel/s

Pixel Rate

29.60 GPixel/s

30.00 GTexel/s

Texture Rate

88.80 GTexel/s

-

FP16 (half)

-

1200 GFLOPS

FP32 (float)

2.842 TFLOPS

240.0 GFLOPS

FP64 (double)

710.4 GFLOPS

Graphics Processor

R700

GPU Name

Tahiti

R700 XT (215-0669045)

GPU Variant

Tahiti PRO (215-0821056)

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.956 billion

Transistors

4.313 billion

256 mm²

Die Size

352 mm²

Board Design

286W

TDP

185W

600 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin + 1x 8-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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