GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
NVIDIA GeForce GT 640
19%
19%
AMD Radeon R9 280X
524%
524%
AMD Radeon R9 280X is approximately 505% faster
Technical Specifications
| Specification | NVIDIA GeForce GT 640 | AMD Radeon R9 280X |
|---|---|---|
| Graphics ProcessorDifferent | GK107 | Tahiti |
| CoresDifferent | 384 | 2048 |
| TMUsDifferent | 32 | 128 |
| ROPsDifferent | 16 | 32 |
| Memory SizeDifferent | 2 GB | 3 GB |
| Memory TypeDifferent | DDR3 | GDDR5 |
| Bus WidthDifferent | 128 bit | 384 bit |
Graphics Processor
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 280X |
|---|---|---|
| GPU NameDifferent | GK107 | Tahiti |
| GPU VariantDifferent | GK107-300-A2 | Tahiti XTL(215-0821065) |
| ArchitectureDifferent | Kepler | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| TransistorsDifferent | 1,270 million | 4,313 million |
| DensityDifferent | 10.8M / mm² | 12.3M / mm² |
| Die SizeDifferent | 118 mm² | 352 mm² |
| Chip PackageDifferent | BGA-908 | N/A |
Graphics Card
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 280X |
|---|---|---|
| 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 | 299 USD |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 8 in our database | 105 in our database |
Clock Speeds
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 280X |
|---|---|---|
| GPU ClockDifferent | 902 MHz | N/A |
| Memory ClockDifferent | 891 MHz1782 Mbps effective | 1500 MHz6 Gbps effective |
| Base ClockDifferent | N/A | 850 MHz |
| Boost ClockDifferent | N/A | 1000 MHz |
Memory
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 280X |
|---|---|---|
| Memory SizeDifferent | 2 GB | 3 GB |
| Memory TypeDifferent | DDR3 | GDDR5 |
| Memory BusDifferent | 128 bit | 384 bit |
| BandwidthDifferent | 28.51 GB/s | 288.0 GB/s |
Render Config
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 280X |
|---|---|---|
| Shading UnitsDifferent | 384 | 2048 |
| TMUsDifferent | 32 | 128 |
| ROPsDifferent | 16 | 32 |
| SMX CountDifferent | 2 | N/A |
| L1 CacheDifferent | 16 KB (per SMX) | 16 KB (per CU) |
| L2 CacheDifferent | 256 KB | 768 KB |
| Compute UnitsDifferent | N/A | 32 |
Theoretical Performance
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 280X |
|---|---|---|
| Pixel RateDifferent | 7.216 GPixel/s | 32.00 GPixel/s |
| Texture RateDifferent | 28.86 GTexel/s | 128.0 GTexel/s |
| FP32 (float)Different | 692.7 GFLOPS | 4.096 TFLOPS |
| FP64 (double)Different | 28.86 GFLOPS (1:24) | 1,024.0 GFLOPS (1:4) |
Board Design
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 280X |
|---|---|---|
| Slot WidthDifferent | Single-slot | Dual-slot |
| LengthDifferent | 145 mm5.7 inches | 275 mm10.8 inches |
| TDPDifferent | 65 W | 250 W |
| Suggested PSUDifferent | 250 W | 600 W |
| OutputsDifferent | 1x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power ConnectorsDifferent | None | 1x 6-pin + 1x 8-pin |
| Board NumberDifferent | P2011 SKU 0 | C386 |
| HeightDifferent | N/A | 109 mm4.3 inches |
| WidthDifferent | N/A | 36 mm1.4 inches |
Graphics Features
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 280X |
|---|---|---|
| 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
Compare Detailed Specs
NVIDIA GeForce GT 640 vs Radeon HD 4830
Radeon HD 4830 Performance111%
Radeon HD 4830 is 11% faster than NVIDIA GeForce GT 640
Compare Detailed Specs
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
Compare Detailed Specs
NVIDIA GeForce GT 640 vs GeForce GT 640
GeForce GT 640 Performance100%
GeForce GT 640 is 0% slower than NVIDIA GeForce GT 640
Compare Detailed Specs
NVIDIA GeForce GT 640 vs Radeon HD 5670
Radeon HD 5670 Performance93%
Radeon HD 5670 is 7% slower than NVIDIA GeForce GT 640
Compare Detailed Specs
More Comparisons with AMD Radeon R9 280X
Compare AMD Radeon R9 280X with other GPUs of similar performance
AMD Radeon R9 280X vs GeForce GTX 1650
GeForce GTX 1650 Performance116%
GeForce GTX 1650 is 16% faster than AMD Radeon R9 280X
Compare Detailed Specs
AMD Radeon R9 280X vs Radeon RX 6400
Radeon RX 6400 Performance114%
Radeon RX 6400 is 14% faster than AMD Radeon R9 280X
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AMD Radeon R9 280X vs Arc A380
Arc A380 Performance113%
Arc A380 is 13% faster than AMD Radeon R9 280X
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AMD Radeon R9 280X vs GeForce GTX 780
GeForce GTX 780 Performance112%
GeForce GTX 780 is 12% faster than AMD Radeon R9 280X
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AMD Radeon R9 280X vs Radeon HD 7970 GHz Edition
Radeon HD 7970 GHz Edition Performance102%
Radeon HD 7970 GHz Edition is 2% faster than AMD Radeon R9 280X
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AMD Radeon R9 280X vs GeForce GTX 590
GeForce GTX 590 Performance101%
GeForce GTX 590 is 1% faster than AMD Radeon R9 280X
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