GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
NVIDIA GeForce GT 640
97%
97%
NVIDIA GeForce 9800 GT
103%
103%
NVIDIA GeForce 9800 GT is approximately 6% faster
Technical Specifications
| Specification | NVIDIA GeForce GT 640 | NVIDIA GeForce 9800 GT |
|---|---|---|
| Graphics ProcessorDifferent | GK107 | G92 |
| CoresDifferent | 384 | 112 |
| TMUsDifferent | 32 | 56 |
| ROPs | 16 | 16 |
| Memory SizeDifferent | 2 GB | 512 MB |
| Memory TypeDifferent | DDR3 | GDDR3 |
| Bus WidthDifferent | 128 bit | 256 bit |
Graphics Processor
| Feature | NVIDIA GeForce GT 640 | NVIDIA GeForce 9800 GT |
|---|---|---|
| GPU NameDifferent | GK107 | G92 |
| GPU VariantDifferent | GK107-300-A2 | G92-270-A2 |
| ArchitectureDifferent | Kepler | Tesla |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 28 nm | 65 nm |
| TransistorsDifferent | 1,270 million | 754 million |
| DensityDifferent | 10.8M / mm² | 2.3M / mm² |
| Die SizeDifferent | 118 mm² | 324 mm² |
| Chip PackageDifferent | BGA-908 | FCBGA-1148 |
Graphics Card
| Feature | NVIDIA GeForce GT 640 | NVIDIA GeForce 9800 GT |
|---|---|---|
| Release DateDifferent | Jun 5th, 2012 | Jul 21st, 2008 |
| GenerationDifferent | GeForce 600 | GeForce 9(9800) |
| PredecessorDifferent | GeForce 500 | GeForce 8 |
| SuccessorDifferent | GeForce 700 | GeForce 200 |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 99 USD | 160 USD |
| Bus InterfaceDifferent | PCIe 3.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 8 in our database | 46 in our database |
Clock Speeds
| Feature | NVIDIA GeForce GT 640 | NVIDIA GeForce 9800 GT |
|---|---|---|
| GPU ClockDifferent | 902 MHz | 600 MHz |
| Memory ClockDifferent | 891 MHz1782 Mbps effective | 900 MHz1800 Mbps effective |
| Shader ClockDifferent | N/A | 1500 MHz |
Memory
| Feature | NVIDIA GeForce GT 640 | NVIDIA GeForce 9800 GT |
|---|---|---|
| Memory SizeDifferent | 2 GB | 512 MB |
| Memory TypeDifferent | DDR3 | GDDR3 |
| Memory BusDifferent | 128 bit | 256 bit |
| BandwidthDifferent | 28.51 GB/s | 57.60 GB/s |
Render Config
| Feature | NVIDIA GeForce GT 640 | NVIDIA GeForce 9800 GT |
|---|---|---|
| Shading UnitsDifferent | 384 | 112 |
| TMUsDifferent | 32 | 56 |
| ROPs | 16 | 16 |
| SMX CountDifferent | 2 | N/A |
| L1 CacheDifferent | 16 KB (per SMX) | N/A |
| L2 CacheDifferent | 256 KB | 64 KB |
| SM CountDifferent | N/A | 14 |
Theoretical Performance
| Feature | NVIDIA GeForce GT 640 | NVIDIA GeForce 9800 GT |
|---|---|---|
| Pixel RateDifferent | 7.216 GPixel/s | 9.600 GPixel/s |
| Texture RateDifferent | 28.86 GTexel/s | 33.60 GTexel/s |
| FP32 (float)Different | 692.7 GFLOPS | 336.0 GFLOPS |
| FP64 (double)Different | 28.86 GFLOPS (1:24) | N/A |
Board Design
| Feature | NVIDIA GeForce GT 640 | NVIDIA GeForce 9800 GT |
|---|---|---|
| Slot Width | Single-slot | Single-slot |
| LengthDifferent | 145 mm5.7 inches | 229 mm9 inches |
| TDPDifferent | 65 W | 125 W |
| Suggested PSUDifferent | 250 W | 300 W |
| OutputsDifferent | 1x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 2x DVI1x S-Video |
| Power ConnectorsDifferent | None | 1x 6-pin |
| Board NumberDifferent | P2011 SKU 0 | P360 SKU 50,P392 SKU 51, P393 SKU 0, P393 SKU 4, P393 SKU 14 |
| HeightDifferent | N/A | 111 mm4.4 inches |
Graphics Features
| Feature | NVIDIA GeForce GT 640 | NVIDIA GeForce 9800 GT |
|---|---|---|
| DirectXDifferent | 12 (11_0) | 11.1 (10_0) |
| OpenGLDifferent | 4.6 | 3.3 |
| OpenCLDifferent | 3.0 | 1.1 |
| VulkanDifferent | 1.2.175 | N/A |
| CUDADifferent | 3.0 | 1.1 |
| Shader ModelDifferent | 6.5 (5.1) | 4.0 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
49
Detailed Features
More Comparisons with NVIDIA GeForce GT 640
Compare NVIDIA GeForce GT 640 with other GPUs of similar performance
NVIDIA GeForce GT 640 vs Radeon HD 4770
Radeon HD 4770 Performance119%
Radeon HD 4770 is 19% faster than NVIDIA GeForce GT 640
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NVIDIA GeForce GT 640 vs Radeon HD 4830
Radeon HD 4830 Performance111%
Radeon HD 4830 is 11% faster than NVIDIA GeForce GT 640
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NVIDIA GeForce GT 640 vs Radeon HD 6670
Radeon HD 6670 Performance108%
Radeon HD 6670 is 8% faster than NVIDIA GeForce GT 640
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NVIDIA GeForce GT 640 vs GeForce 9800 GT
GeForce 9800 GT Performance103%
GeForce 9800 GT is 3% faster than NVIDIA GeForce GT 640
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NVIDIA GeForce GT 640 vs GeForce GT 640
GeForce GT 640 Performance100%
GeForce GT 640 is 0% slower than NVIDIA GeForce GT 640
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NVIDIA GeForce GT 640 vs Radeon HD 5670
Radeon HD 5670 Performance93%
Radeon HD 5670 is 7% slower than NVIDIA GeForce GT 640
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More Comparisons with NVIDIA GeForce 9800 GT
Compare NVIDIA GeForce 9800 GT with other GPUs of similar performance
NVIDIA GeForce 9800 GT vs Radeon HD 4770
Radeon HD 4770 Performance115%
Radeon HD 4770 is 15% faster than NVIDIA GeForce 9800 GT
Compare Detailed Specs
NVIDIA GeForce 9800 GT vs Radeon HD 4830
Radeon HD 4830 Performance107%
Radeon HD 4830 is 7% faster than NVIDIA GeForce 9800 GT
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NVIDIA GeForce 9800 GT vs Radeon HD 6670
Radeon HD 6670 Performance104%
Radeon HD 6670 is 4% faster than NVIDIA GeForce 9800 GT
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NVIDIA GeForce 9800 GT vs GeForce 9800 GT
GeForce 9800 GT Performance100%
GeForce 9800 GT is 0% slower than NVIDIA GeForce 9800 GT
Compare Detailed Specs
NVIDIA GeForce 9800 GT vs GeForce GT 640
GeForce GT 640 Performance97%
GeForce GT 640 is 3% slower than NVIDIA GeForce 9800 GT
Compare Detailed Specs
NVIDIA GeForce 9800 GT vs Radeon HD 5670
Radeon HD 5670 Performance90%
Radeon HD 5670 is 10% slower than NVIDIA GeForce 9800 GT
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