AMD Radeon HD 7950 Monica BIOS 2 vs AMD Radeon R9 255 OEM

VS

AMD Radeon HD 7950 Monica BIOS 2 AMD Radeon R9 255 OEM

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Monica BIOS 2 and 2GB VRAM Radeon R9 255 OEM 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

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (240.0GB/s vs 73.60GB/s)

256 additional rendering cores

AMD Radeon R9 255 OEM 's Advantages

Released 1 years and 11 months late

Boost Clock930MHz

Lower TDP (65W vs 85W)

Score

Benchmark

FP32 (float)

Radeon HD 7950 Monica BIOS 2 +29%

1.229 TFLOPS

Radeon R9 255 OEM

0.952 TFLOPS

Radeon HD 7950 Monica BIOS 2

VS

Radeon R9 255 OEM

Graphics Card

Jan 2012

Release Date

Dec 2013

Southern Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

930 MHz

1250 MHz

Memory Clock

1150 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

240.0GB/s

Bandwidth

73.60GB/s

Render Config

-

SM Count

-

12

Compute Units

8

768

Shading Units

512

48

TMUs

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

256 KB

Theoretical Performance

25.60 GPixel/s

Pixel Rate

14.88 GPixel/s

38.40 GTexel/s

Texture Rate

29.76 GTexel/s

-

FP16 (half)

-

1229 GFLOPS

FP32 (float)

952.3 GFLOPS

307.2 GFLOPS

FP64 (double)

59.52 GFLOPS

Graphics Processor

Tahiti

GPU Name

Cape Verde

Tahiti PRO (215-0821056)

GPU Variant

Cape Verde PRX

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

1.5 billion

352 mm²

Die Size

123 mm²

Board Design

85W

TDP

65W

250 W

Suggested PSU

250 W

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

Outputs

No outputs

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

CUDA

-

5.1

Shader Model

5.1

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