NVIDIA GeForce GTX 645 OEM vs AMD Radeon HD 7950

VS

NVIDIA GeForce GTX 645 OEM

AMD Radeon HD 7950

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 645 OEM and 3GB VRAM Radeon HD 7950 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 645 OEM 's Advantages

Released 1 years and 3 months late

Lower TDP (65W vs 200W)

AMD Radeon HD 7950 's Advantages

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (240.0GB/s vs 64.00GB/s)

1216 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 645 OEM

0.949 TFLOPS

Radeon HD 7950 +202%

2.867 TFLOPS

GeForce GTX 645 OEM

VS

Radeon HD 7950

Graphics Card

Apr 2013

Release Date

Jan 2012

GeForce 600

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

64.00GB/s

Bandwidth

240.0GB/s

Render Config

-

Compute Units

28

-

576

Shading Units

1792

48

TMUs

112

16

ROPs

32

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

768 KB

-

Theoretical Performance

9.888 GPixel/s

Pixel Rate

25.60 GPixel/s

39.55 GTexel/s

Texture Rate

89.60 GTexel/s

-

949.2 GFLOPS

FP32 (float)

2.867 TFLOPS

39.55 GFLOPS

FP64 (double)

716.8 GFLOPS

Board Design

65W

TDP

200W

250 W

Suggested PSU

550 W

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

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Processor

GK106

GPU Name

Tahiti

GK106-200-A1

GPU Variant

Tahiti PRO (215-0821056)

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.54 billion

Transistors

4.313 billion

221 mm²

Die Size

352 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

5.1

Related GPU Comparisons

1

NVIDIA GeForce GTX 645 OEM vs NVIDIA GeForce GT 240

2

NVIDIA GeForce GTX 645 OEM vs AMD Radeon RX 580X

3

NVIDIA GeForce GTX 645 OEM vs NVIDIA Quadro FX 540

4

NVIDIA GeForce GTX 645 OEM vs NVIDIA GeForce RTX 3060 12 GB GA104

5

NVIDIA GeForce GTX 645 OEM vs AMD Radeon HD 8450 OEM

6

NVIDIA GeForce GTX 645 OEM vs NVIDIA GeForce GT 340 OEM

7

NVIDIA GeForce GTX 645 OEM vs NVIDIA GeForce GTX TITAN X

8

NVIDIA GeForce GTX 645 OEM vs Intel Arc A770

9

NVIDIA GeForce GTX 645 OEM vs AMD Radeon Pro WX 8200

10

NVIDIA GeForce GTX 645 OEM vs AMD Radeon Sky 500

Related News

1

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

2

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

3

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

4

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

5

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

6

CXMT Reportedly Achieves 80% Yield in DDR5 Production

7

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

8

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

9

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

10

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim