AMD Radeon HD 7950 Monica BIOS 2 vs NVIDIA GeForce GT 640 OEM Rebrand

VS

AMD Radeon HD 7950 Monica BIOS 2

NVIDIA GeForce GT 640 OEM Rebrand

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Monica BIOS 2 and 1536MB VRAM GeForce GT 640 OEM Rebrand 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 1536GB)

Larger VRAM bandwidth (240.0GB/s vs 38.40GB/s)

624 additional rendering cores

NVIDIA GeForce GT 640 OEM Rebrand 's Advantages

Lower TDP (75W vs 85W)

Score

Benchmark

FP32 (float)

Radeon HD 7950 Monica BIOS 2 +196%

1.229 TFLOPS

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

Radeon HD 7950 Monica BIOS 2

VS

GeForce GT 640 OEM Rebrand

Graphics Card

Jan 2012

Release Date

Apr 2012

Southern Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

800 MHz

Memory

3GB

Memory Size

1536MB

GDDR5

Memory Type

DDR3

384bit

Memory Bus

192bit

240.0GB/s

Bandwidth

38.40GB/s

Render Config

12

Compute Units

-

SM Count

3

768

Shading Units

144

48

TMUs

24

32

ROPs

24

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

768 KB

L2 Cache

384 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

4.320 GPixel/s

38.40 GTexel/s

Texture Rate

17.28 GTexel/s

-

1229 GFLOPS

FP32 (float)

414.7 GFLOPS

307.2 GFLOPS

FP64 (double)

34.56 GFLOPS

Board Design

85W

TDP

75W

250 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

GF116

Tahiti PRO (215-0821056)

GPU Variant

GF116-150-A1

GCN 1.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

1.17 billion

352 mm²

Die Size

238 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

5.1

Shader Model

5.1

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