AMD Radeon HD 7970 GHz Edition vs NVIDIA GeForce GT 640

VS

AMD Radeon HD 7970 GHz Edition

NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 GHz Edition and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 GHz Edition 's Advantages

Boost Clock1050MHz

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (288.0GB/s vs 28.51GB/s)

1664 additional rendering cores

NVIDIA GeForce GT 640 's Advantages

Lower TDP (65W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 GHz Edition +520%

4.301 TFLOPS

GeForce GT 640

0.693 TFLOPS

Radeon HD 7970 GHz Edition

VS

GeForce GT 640

Graphics Card

Jun 2012

Release Date

Jun 2012

Southern Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1000 MHz

Base Clock

-

1050 MHz

Boost Clock

-

1500 MHz

Memory Clock

891 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

384bit

Memory Bus

128bit

288.0GB/s

Bandwidth

28.51GB/s

Render Config

32

Compute Units

-

2048

Shading Units

384

128

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

768 KB

L2 Cache

256 KB

-

Theoretical Performance

33.60 GPixel/s

Pixel Rate

7.216 GPixel/s

134.4 GTexel/s

Texture Rate

28.86 GTexel/s

-

4.301 TFLOPS

FP32 (float)

692.7 GFLOPS

1075 GFLOPS

FP64 (double)

28.86 GFLOPS

Board Design

300W

TDP

65W

700 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

GK107

Tahiti XT2 (215-0821065)

GPU Variant

GK107-300-A2

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

1.27 billion

352 mm²

Die Size

118 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

5.1

Shader Model

5.1

Related GPU Comparisons

1

AMD Radeon HD 7970 GHz Edition vs NVIDIA GeForce 7600 GT AGP

2

AMD Radeon HD 7970 GHz Edition vs NVIDIA GeForce GTX 760 Ti OEM Rebrand

3

AMD Radeon HD 7970 GHz Edition vs NVIDIA GeForce GTX 470

4

AMD Radeon HD 7970 GHz Edition vs ATI Radeon HD 5550

5

AMD Radeon HD 7970 GHz Edition vs AMD Radeon R9 FURY

6

AMD Radeon HD 7970 GHz Edition vs AMD Radeon Pro Vega II

7

AMD Radeon HD 7970 GHz Edition vs AMD Radeon HD 7350 OEM PCI

8

AMD Radeon HD 7970 GHz Edition vs AMD Radeon HD 6970

9

AMD Radeon HD 7970 GHz Edition vs NVIDIA GeForce RTX 3060 GA104

10

AMD Radeon HD 7970 GHz Edition vs AMD Radeon RX 7900 GRE

Related News

1

AMD's Thunderous Strike: Ryzen 9 9950X3D Performance Scores Revealed for the First Time!

2

Continuous Decline in DRAM Memory Prices: Downward Trend Intensifies

3

NVIDIA GB202 Chip Unveiled for the First Time, to be Used in RTX 5090 with 512-bit GDDR7 Memory

4

Strix Halo Integrated Graphics Score Appears on Passmark, Currently Slightly Below RTX 3060 12GB

5

AMD Unveils New RX 9070 XT Graphics Card Performance: Positioned Between RX 7900 GRE and RX 7900 XT

6

Double the Excitement! AMD FSR 4.0 to Launch Alongside RX 9070 XT Graphics Card

7

CPU-Z Minor Update: Support for Intel's Four New Products and New Memory

8

CXMT Reportedly Achieves 80% Yield in DDR5 Production

9

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

10

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market