AMD Radeon Pro W6800X vs NVIDIA GeForce GT 640
We compared two Desktop platform GPUs: 32GB VRAM Radeon Pro W6800X 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 Pro W6800X 's Advantages
Released 9 years and 2 months late
Boost Clock2087MHz
More VRAM (32GB vs 2GB)
Larger VRAM bandwidth (512.0GB/s vs 28.51GB/s)
3456 additional rendering cores
NVIDIA GeForce GT 640 's Advantages
Lower TDP (65W vs 200W)
Score
Benchmark
FP32 (float)
Radeon Pro W6800X
+2213%
16.03 TFLOPS
GeForce GT 640
0.693 TFLOPS
Blender
Radeon Pro W6800X
+4350%
1424
GeForce GT 640
32
Graphics Card
Aug 2021
Release Date
Jun 2012
Radeon Pro Mac
Generation
GeForce 600
Desktop
Type
Desktop
Apple MPX
Bus Interface
PCIe 3.0 x16
Clock Speeds
1800 MHz
Base Clock
-
2087 MHz
Boost Clock
-
2000 MHz
Memory Clock
891 MHz
Memory
32GB
Memory Size
2GB
GDDR6
Memory Type
DDR3
256bit
Memory Bus
128bit
512.0GB/s
Bandwidth
28.51GB/s
Render Config
60
Compute Units
-
-
-
-
3840
Shading Units
384
240
TMUs
32
96
ROPs
16
-
-
-
60
RT Cores
-
128 KB per Array
L1 Cache
16 KB (per SMX)
4 MB
L2 Cache
256 KB
128 MB
L3 Cache
-
Theoretical Performance
200.4 GPixel/s
Pixel Rate
7.216 GPixel/s
500.9 GTexel/s
Texture Rate
28.86 GTexel/s
32.06 TFLOPS
FP16 (half)
-
16.03 TFLOPS
FP32 (float)
692.7 GFLOPS
1002 GFLOPS
FP64 (double)
28.86 GFLOPS
Board Design
200W
TDP
65W
550 W
Suggested PSU
250 W
1x HDMI 2.1
4x Thunderbolt
Outputs
1x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
Apple MPX
Power Connectors
None
Graphics Processor
Navi 21
GPU Name
GK107
Navi 21 Pro-XLA
GPU Variant
GK107-300-A2
RDNA 2.0
Architecture
Kepler
TSMC
Foundry
TSMC
7 nm
Process Size
28 nm
26.8 billion
Transistors
1.27 billion
520 mm²
Die Size
118 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.1
OpenCL
3.0
1.3
Vulkan
1.1
-
CUDA
3.0
6.7
Shader Model
5.1
