Home GPU Comparison NVIDIA GeForce GT 640 Rev. 2 vs AMD Radeon RX 7800 XT

NVIDIA GeForce GT 640 Rev. 2 vs AMD Radeon RX 7800 XT

NVIDIA GeForce GT 640 Rev. 2
VS
AMD Radeon RX 7800 XT
NVIDIA GeForce GT 640 Rev. 2 AMD Radeon RX 7800 XT
We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 640 Rev. 2 and 16GB VRAM Radeon RX 7800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 Rev. 2 's Advantages
Lower TDP (49W vs 263W)
AMD Radeon RX 7800 XT 's Advantages
Released 10 years and 3 months late
Boost Clock2430MHz
More VRAM (16GB vs 1GB)
Larger VRAM bandwidth (624.1GB/s vs 40.06GB/s)
3456 additional rendering cores

Score

Benchmark

FP32 (float)
GeForce GT 640 Rev. 2
0.803 TFLOPS
Radeon RX 7800 XT +4547%
37.32 TFLOPS
GeForce GT 640 Rev. 2
VS
Radeon RX 7800 XT

Graphics Card

May 2013
Release Date
Aug 2023
GeForce 600
Generation
Navi III
Desktop
Type
Desktop
PCIe 2.0 x8
Bus Interface
PCIe 4.0 x16

Clock Speeds

-
Base Clock
1295 MHz
-
Boost Clock
2430 MHz
1252 MHz
Memory Clock
2438 MHz

Memory

1024MB
Memory Size
16GB
GDDR5
Memory Type
GDDR6
64bit
Memory Bus
256bit
40.06GB/s
Bandwidth
624.1GB/s

Render Config

-
SM Count
-
-
Compute Units
60
384
Shading Units
3840
32
TMUs
240
8
ROPs
96
-
Tensor Cores
-
-
RT Cores
60
16 KB (per SMX)
L1 Cache
128 KB per Array
512 KB
L2 Cache
4 MB

Theoretical Performance

8.368 GPixel/s
Pixel Rate
233.3 GPixel/s
33.47 GTexel/s
Texture Rate
583.2 GTexel/s
-
FP16 (half)
74.65 TFLOPS
803.3 GFLOPS
FP32 (float)
37.32 TFLOPS
33.47 GFLOPS
FP64 (double)
1166 GFLOPS

Graphics Processor

GK208
GPU Name
Navi 32
GK208-400-A1
GPU Variant
Navi 32 XT (215-180000006)
Kepler 2.0
Architecture
RDNA 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
5 nm
1.02 billion
Transistors
28.1 billion
87 mm²
Die Size
346 mm²

Board Design

49W
TDP
263W
200 W
Suggested PSU
600 W
1x DVI 1x HDMI 1.4a 1x VGA
Outputs
1x HDMI 2.1a 3x DisplayPort 2.1
None
Power Connectors
2x 8-pin

Graphics Features

12 (11_0)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
3.0
OpenCL
2.2
1.1
Vulkan
1.3
3.5
CUDA
-
5.1
Shader Model
6.7

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