GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
NVIDIA GeForce GT 640
26%
26%
AMD Radeon R9 270X
380%
380%
AMD Radeon R9 270X is approximately 354% faster
Technical Specifications
| Specification | NVIDIA GeForce GT 640 | AMD Radeon R9 270X |
|---|---|---|
| Graphics ProcessorDifferent | GK107 | Curacao |
| CoresDifferent | 384 | 1280 |
| TMUsDifferent | 32 | 80 |
| ROPsDifferent | 16 | 32 |
| Memory Size | 2 GB | 2 GB |
| Memory TypeDifferent | DDR3 | GDDR5 |
| Bus WidthDifferent | 128 bit | 256 bit |
Graphics Processor
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 270X |
|---|---|---|
| GPU NameDifferent | GK107 | Curacao |
| GPU VariantDifferent | GK107-300-A2 | Curacao XT(215-0848004) |
| ArchitectureDifferent | Kepler | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| TransistorsDifferent | 1,270 million | 2,800 million |
| DensityDifferent | 10.8M / mm² | 13.2M / mm² |
| Die SizeDifferent | 118 mm² | 212 mm² |
| Chip PackageDifferent | BGA-908 | FCBGA-1737 |
Graphics Card
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 270X |
|---|---|---|
| Release DateDifferent | Jun 5th, 2012 | Oct 8th, 2013 |
| GenerationDifferent | GeForce 600 | Volcanic Islands(R9 200) |
| PredecessorDifferent | GeForce 500 | Sea Islands |
| SuccessorDifferent | GeForce 700 | Pirate Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 99 USD | 199 USD |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 8 in our database | 90 in our database |
Clock Speeds
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 270X |
|---|---|---|
| GPU ClockDifferent | 902 MHz | N/A |
| Memory ClockDifferent | 891 MHz1782 Mbps effective | 1400 MHz5.6 Gbps effective |
| Base ClockDifferent | N/A | 1000 MHz |
| Boost ClockDifferent | N/A | 1050 MHz |
Memory
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 270X |
|---|---|---|
| Memory Size | 2 GB | 2 GB |
| Memory TypeDifferent | DDR3 | GDDR5 |
| Memory BusDifferent | 128 bit | 256 bit |
| BandwidthDifferent | 28.51 GB/s | 179.2 GB/s |
Render Config
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 270X |
|---|---|---|
| Shading UnitsDifferent | 384 | 1280 |
| TMUsDifferent | 32 | 80 |
| ROPsDifferent | 16 | 32 |
| SMX CountDifferent | 2 | N/A |
| L1 CacheDifferent | 16 KB (per SMX) | 16 KB (per CU) |
| L2 CacheDifferent | 256 KB | 512 KB |
| Compute UnitsDifferent | N/A | 20 |
Theoretical Performance
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 270X |
|---|---|---|
| Pixel RateDifferent | 7.216 GPixel/s | 33.60 GPixel/s |
| Texture RateDifferent | 28.86 GTexel/s | 84.00 GTexel/s |
| FP32 (float)Different | 692.7 GFLOPS | 2.688 TFLOPS |
| FP64 (double)Different | 28.86 GFLOPS (1:24) | 168.0 GFLOPS (1:16) |
Board Design
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 270X |
|---|---|---|
| Slot WidthDifferent | Single-slot | Dual-slot |
| LengthDifferent | 145 mm5.7 inches | 241 mm9.5 inches |
| TDPDifferent | 65 W | 180 W |
| Suggested PSUDifferent | 250 W | 450 W |
| OutputsDifferent | 1x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power ConnectorsDifferent | None | 2x 6-pin |
| Board NumberDifferent | P2011 SKU 0 | C631, 109-C63257-00A_02, 109-C63257-12_02 |
| HeightDifferent | N/A | 109 mm4.3 inches |
| WidthDifferent | N/A | 36 mm1.4 inches |
Graphics Features
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 270X |
|---|---|---|
| DirectXDifferent | 12 (11_0) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCLDifferent | 3.0 | 2.1 (1.2) |
| VulkanDifferent | 1.2.175 | 1.2.170 |
| CUDADifferent | 3.0 | N/A |
| Shader Model | 6.5 (5.1) | 6.5 (5.1) |
Comparison Summary
7
Specifications Compared
8
Feature Categories
51
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 AMD Radeon R9 270X
Compare AMD Radeon R9 270X with other GPUs of similar performance
AMD Radeon R9 270X vs GeForce GTX 960
GeForce GTX 960 Performance119%
GeForce GTX 960 is 19% faster than AMD Radeon R9 270X
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AMD Radeon R9 270X vs GeForce GTX 670
GeForce GTX 670 Performance116%
GeForce GTX 670 is 16% faster than AMD Radeon R9 270X
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AMD Radeon R9 270X vs Radeon HD 5970
Radeon HD 5970 Performance105%
Radeon HD 5970 is 5% faster than AMD Radeon R9 270X
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AMD Radeon R9 270X vs GeForce GTX 1630
GeForce GTX 1630 Performance105%
GeForce GTX 1630 is 5% faster than AMD Radeon R9 270X
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AMD Radeon R9 270X vs GeForce GTX 1050
GeForce GTX 1050 Performance103%
GeForce GTX 1050 is 3% faster than AMD Radeon R9 270X
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AMD Radeon R9 270X vs GeForce GTX 760
GeForce GTX 760 Performance102%
GeForce GTX 760 is 2% faster than AMD Radeon R9 270X
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