NVIDIA GeForce GTX 645 OEM vs AMD Radeon RX 6900 XT

VS

NVIDIA GeForce GTX 645 OEM

AMD Radeon RX 6900 XT

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 645 OEM and 16GB VRAM Radeon RX 6900 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 645 OEM 's Advantages

Lower TDP (65W vs 300W)

AMD Radeon RX 6900 XT 's Advantages

Released 7 years and 6 months late

Boost Clock2250MHz

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (512.0GB/s vs 64.00GB/s)

4544 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 645 OEM

0.949 TFLOPS

Radeon RX 6900 XT +2327%

23.04 TFLOPS

GeForce GTX 645 OEM

VS

Radeon RX 6900 XT

Graphics Card

Apr 2013

Release Date

Oct 2020

GeForce 600

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1825 MHz

-

Boost Clock

2250 MHz

1000 MHz

Memory Clock

2000 MHz

Memory

1024MB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

256bit

64.00GB/s

Bandwidth

512.0GB/s

Render Config

-

Compute Units

80

-

576

Shading Units

5120

48

TMUs

320

16

ROPs

128

-

RT Cores

80

16 KB (per SMX)

L1 Cache

128 KB per Array

256 KB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

9.888 GPixel/s

Pixel Rate

288.0 GPixel/s

39.55 GTexel/s

Texture Rate

720.0 GTexel/s

-

FP16 (half)

46.08 TFLOPS

949.2 GFLOPS

FP32 (float)

23.04 TFLOPS

39.55 GFLOPS

FP64 (double)

1440 GFLOPS

Board Design

65W

TDP

300W

250 W

Suggested PSU

700 W

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

Outputs

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

None

Power Connectors

2x 8-pin

Graphics Processor

GK106

GPU Name

Navi 21

GK106-200-A1

GPU Variant

Navi 21 XTX (215-121000167)

Kepler

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

2.54 billion

Transistors

26.8 billion

221 mm²

Die Size

520 mm²

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.1

Vulkan

1.3

3.0

CUDA

-

5.1

Shader Model

6.5

Related GPU Comparisons

1

NVIDIA GeForce GTX 645 OEM vs ATI Radeon HD 3450 AGP

2

NVIDIA GeForce GTX 645 OEM vs NVIDIA GeForce RTX 4010

3

NVIDIA GeForce GTX 645 OEM vs ATI FirePro V7760

4

NVIDIA GeForce GTX 645 OEM vs NVIDIA GeForce GT 340 OEM

5

NVIDIA GeForce GTX 645 OEM vs AMD Radeon Pro V7350X2

6

NVIDIA GeForce GTX 645 OEM vs AMD FirePro S9050

7

NVIDIA GeForce GTX 645 OEM vs ATI FirePro 2460 Multi View

8

NVIDIA GeForce GTX 645 OEM vs NVIDIA GeForce 9300 GS Rev. 2

9

NVIDIA GeForce GTX 645 OEM vs AMD Radeon R5 340 OEM

10

NVIDIA GeForce GTX 645 OEM vs NVIDIA GeForce RTX 5060 Mobile

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