ATI Radeon HD 4870 X2 vs ATI Radeon HD 2950 PRO

VS

ATI Radeon HD 4870 X2 ATI Radeon HD 2950 PRO

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4870 X2 and 256MB VRAM Radeon HD 2950 PRO to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4870 X2 's Advantages

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (115.2GB/s vs 38.40GB/s)

480 additional rendering cores

ATI Radeon HD 2950 PRO 's Advantages

Lower TDP (75W vs 286W)

Score

Benchmark

FP32 (float)

Radeon HD 4870 X2 +212%

1.2 TFLOPS

Radeon HD 2950 PRO

0.384 TFLOPS

Radeon HD 4870 X2

VS

Radeon HD 2950 PRO

Graphics Card

Aug 2008

Release Date

Unknown

Radeon R700

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

600 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

115.2GB/s

Bandwidth

38.40GB/s

Render Config

-

SM Count

-

10

Compute Units

4

800

Shading Units

320

40

TMUs

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

256 KB

Theoretical Performance

12.00 GPixel/s

Pixel Rate

9.600 GPixel/s

30.00 GTexel/s

Texture Rate

9.600 GTexel/s

-

FP16 (half)

-

1200 GFLOPS

FP32 (float)

384.0 GFLOPS

240.0 GFLOPS

FP64 (double)

76.80 GFLOPS

Graphics Processor

R700

GPU Name

RV670

R700 XT (215-0669045)

GPU Variant

RV670 PRO ES (215-0708001)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.956 billion

Transistors

0.666 billion

256 mm²

Die Size

192 mm²

Board Design

286W

TDP

75W

600 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3 (full) 4.0 (partial)

1.1

OpenCL

N/A

Vulkan

N/A

-

CUDA

-

4.1

Shader Model

4.1

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