ATI FirePro V7900 vs ATI FirePro V4900

VS

We compared two Desktop platform GPUs: 2GB VRAM FirePro V7900 and 1024MB VRAM FirePro V4900 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI FirePro V7900 's Advantages

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (160.0GB/s vs 64.00GB/s)

800 additional rendering cores

ATI FirePro V4900 's Advantages

Released 6 months late

Lower TDP (75W vs 150W)

Score

Benchmark

FP32 (float)

FirePro V7900 +141%

1.856 TFLOPS

FirePro V4900

0.768 TFLOPS

FirePro V7900

VS

FirePro V4900

Graphics Card

May 2011

Release Date

Nov 2011

FirePro

Generation

FirePro

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1250 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

160.0GB/s

Bandwidth

64.00GB/s

Render Config

-

SM Count

-

20

Compute Units

6

1280

Shading Units

480

80

TMUs

24

32

ROPs

8

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

23.20 GPixel/s

Pixel Rate

6.400 GPixel/s

58.00 GTexel/s

Texture Rate

19.20 GTexel/s

-

FP16 (half)

-

1.856 TFLOPS

FP32 (float)

768.0 GFLOPS

464.0 GFLOPS

FP64 (double)

-

Graphics Processor

Cayman

GPU Name

Turks

Cayman PRO GL

GPU Variant

Turks XT GL

TeraScale 3

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

2.64 billion

Transistors

0.716 billion

389 mm²

Die Size

118 mm²

Board Design

150W

TDP

75W

450 W

Suggested PSU

250 W

4x DisplayPort 1.2

Outputs

1x DVI 2x DisplayPort 1.1

1x 6-pin

Power Connectors

None

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

5.0

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