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GPU Comparison
AMD Radeon R9 290X2 vs NVIDIA GeForce GT 640
AMD Radeon R9 290X2 vs NVIDIA GeForce GT 640
VS
AMD Radeon R9 290X2
NVIDIA GeForce GT 640
We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 290X2 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 R9 290X2 's Advantages
Released 2 years late
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (345.6GB/s vs 28.51GB/s)
2432 additional rendering cores
NVIDIA GeForce GT 640 's Advantages
Lower TDP (65W vs 580W)
Score
Benchmark
FP32 (float)
Radeon R9 290X2
+712%
5.632 TFLOPS
GeForce GT 640
0.693 TFLOPS
Radeon R9 290X2
VS
GeForce GT 640
Graphics Card
Jun 2014
Release Date
Jun 2012
Volcanic Islands
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1350 MHz
Memory Clock
891 MHz
Memory
4GB
Memory Size
2GB
GDDR5
Memory Type
DDR3
512bit
Memory Bus
128bit
345.6GB/s
Bandwidth
28.51GB/s
Render Config
-
SM Count
-
44
Compute Units
-
2816
Shading Units
384
176
TMUs
32
64
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per SMX)
1024 KB
L2 Cache
256 KB
Theoretical Performance
64.00 GPixel/s
Pixel Rate
7.216 GPixel/s
176.0 GTexel/s
Texture Rate
28.86 GTexel/s
-
FP16 (half)
-
5.632 TFLOPS
FP32 (float)
692.7 GFLOPS
704.0 GFLOPS
FP64 (double)
28.86 GFLOPS
Graphics Processor
Hawaii
GPU Name
GK107
Hawaii XT (215-0852000)
GPU Variant
GK107-300-A2
GCN 2.0
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
6.2 billion
Transistors
1.27 billion
438 mm²
Die Size
118 mm²
Board Design
580W
TDP
65W
950 W
Suggested PSU
250 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
4x 8-pin
Power Connectors
None
Graphics Features
12 (12_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.0
OpenCL
3.0
1.2
Vulkan
1.1
-
CUDA
3.0
6.3
Shader Model
5.1
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