AMD Radeon HD 7950 vs ATI Radeon HD 2900 GT

VS

AMD Radeon HD 7950 ATI Radeon HD 2900 GT

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 and 256MB VRAM Radeon HD 2900 GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950 's Advantages

Released 4 years and 2 months late

Larger VRAM bandwidth (240.0GB/s vs 51.20GB/s)

1552 additional rendering cores

ATI Radeon HD 2900 GT 's Advantages

Lower TDP (150W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 7950 +895%

2.867 TFLOPS

Radeon HD 2900 GT

0.288 TFLOPS

Radeon HD 7950

VS

Radeon HD 2900 GT

Graphics Card

Jan 2012

Release Date

Nov 2007

Southern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1250 MHz

Memory Clock

800 MHz

Memory

3GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

256bit

240.0GB/s

Bandwidth

51.20GB/s

Render Config

-

SM Count

-

28

Compute Units

3

1792

Shading Units

240

112

TMUs

12

32

ROPs

12

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

128 KB

Theoretical Performance

25.60 GPixel/s

Pixel Rate

7.212 GPixel/s

89.60 GTexel/s

Texture Rate

7.212 GTexel/s

-

FP16 (half)

-

2.867 TFLOPS

FP32 (float)

288.5 GFLOPS

716.8 GFLOPS

FP64 (double)

-

Graphics Processor

Tahiti

GPU Name

R600

Tahiti PRO (215-0821056)

GPU Variant

R600 GT (215RGFDKA13FG)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

4.313 billion

Transistors

0.72 billion

352 mm²

Die Size

420 mm²

Board Design

200W

TDP

150W

550 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

1x 8-pin

Graphics Features

12 (11_1)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3 (full) 4.0 (partial)

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

CUDA

-

5.1

Shader Model

4.0

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