GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
NVIDIA GeForce GT 640
84%
84%
ATI Radeon HD 4770
119%
119%
ATI Radeon HD 4770 is approximately 35% faster
Technical Specifications
| Specification | NVIDIA GeForce GT 640 | ATI Radeon HD 4770 |
|---|---|---|
| Graphics ProcessorDifferent | GK107 | RV740 |
| CoresDifferent | 384 | 640 |
| TMUs | 32 | 32 |
| ROPs | 16 | 16 |
| Memory SizeDifferent | 2 GB | 512 MB |
| Memory TypeDifferent | DDR3 | GDDR5 |
| Bus Width | 128 bit | 128 bit |
Graphics Processor
| Feature | NVIDIA GeForce GT 640 | ATI Radeon HD 4770 |
|---|---|---|
| GPU NameDifferent | GK107 | RV740 |
| GPU VariantDifferent | GK107-300-A2 | RV740 XT(215-0727019) |
| ArchitectureDifferent | Kepler | TeraScale |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 28 nm | 40 nm |
| TransistorsDifferent | 1,270 million | 826 million |
| DensityDifferent | 10.8M / mm² | 6.0M / mm² |
| Die SizeDifferent | 118 mm² | 137 mm² |
| Chip PackageDifferent | BGA-908 | N/A |
Graphics Card
| Feature | NVIDIA GeForce GT 640 | ATI Radeon HD 4770 |
|---|---|---|
| Release DateDifferent | Jun 5th, 2012 | Apr 28th, 2009 |
| GenerationDifferent | GeForce 600 | Radeon R700(HD 4700) |
| PredecessorDifferent | GeForce 500 | Radeon R600 |
| SuccessorDifferent | GeForce 700 | Evergreen |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 99 USD | 109 USD |
| Bus InterfaceDifferent | PCIe 3.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 8 in our database | 82 in our database |
Clock Speeds
| Feature | NVIDIA GeForce GT 640 | ATI Radeon HD 4770 |
|---|---|---|
| GPU ClockDifferent | 902 MHz | 750 MHz |
| Memory ClockDifferent | 891 MHz1782 Mbps effective | 800 MHz3.2 Gbps effective |
Memory
| Feature | NVIDIA GeForce GT 640 | ATI Radeon HD 4770 |
|---|---|---|
| Memory SizeDifferent | 2 GB | 512 MB |
| Memory TypeDifferent | DDR3 | GDDR5 |
| Memory Bus | 128 bit | 128 bit |
| BandwidthDifferent | 28.51 GB/s | 51.20 GB/s |
Render Config
| Feature | NVIDIA GeForce GT 640 | ATI Radeon HD 4770 |
|---|---|---|
| Shading UnitsDifferent | 384 | 640 |
| TMUs | 32 | 32 |
| ROPs | 16 | 16 |
| SMX CountDifferent | 2 | N/A |
| L1 CacheDifferent | 16 KB (per SMX) | 16 KB (per CU) |
| L2 CacheDifferent | 256 KB | 128 KB |
| Compute UnitsDifferent | N/A | 8 |
Theoretical Performance
| Feature | NVIDIA GeForce GT 640 | ATI Radeon HD 4770 |
|---|---|---|
| Pixel RateDifferent | 7.216 GPixel/s | 12.00 GPixel/s |
| Texture RateDifferent | 28.86 GTexel/s | 24.00 GTexel/s |
| FP32 (float)Different | 692.7 GFLOPS | 960.0 GFLOPS |
| FP64 (double)Different | 28.86 GFLOPS (1:24) | 192.0 GFLOPS (1:5) |
Board Design
| Feature | NVIDIA GeForce GT 640 | ATI Radeon HD 4770 |
|---|---|---|
| Slot WidthDifferent | Single-slot | Dual-slot |
| LengthDifferent | 145 mm5.7 inches | 203 mm8 inches |
| TDPDifferent | 65 W | 80 W |
| Suggested PSU | 250 W | 250 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 | B743 |
Graphics Features
| Feature | NVIDIA GeForce GT 640 | ATI Radeon HD 4770 |
|---|---|---|
| DirectXDifferent | 12 (11_0) | 10.1 (10_1) |
| OpenGLDifferent | 4.6 | 3.3 |
| OpenCLDifferent | 3.0 | 1.1 |
| VulkanDifferent | 1.2.175 | N/A |
| CUDADifferent | 3.0 | N/A |
| Shader ModelDifferent | 6.5 (5.1) | 4.1 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
47
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
Compare Detailed Specs
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 ATI Radeon HD 4770
Compare ATI Radeon HD 4770 with other GPUs of similar performance
ATI Radeon HD 4770 vs Radeon HD 5750
Radeon HD 5750 Performance115%
Radeon HD 5750 is 15% faster than ATI Radeon HD 4770
Compare Detailed Specs
ATI Radeon HD 4770 vs GeForce GTS 450
GeForce GTS 450 Performance111%
GeForce GTS 450 is 11% faster than ATI Radeon HD 4770
Compare Detailed Specs
ATI Radeon HD 4770 vs GeForce GTS 250
GeForce GTS 250 Performance108%
GeForce GTS 250 is 8% faster than ATI Radeon HD 4770
Compare Detailed Specs
ATI Radeon HD 4770 vs Radeon HD 4850
Radeon HD 4850 Performance105%
Radeon HD 4850 is 5% faster than ATI Radeon HD 4770
Compare Detailed Specs
ATI Radeon HD 4770 vs Radeon HD 4770
Radeon HD 4770 Performance100%
Radeon HD 4770 is 0% slower than ATI Radeon HD 4770
Compare Detailed Specs
ATI Radeon HD 4770 vs Radeon HD 4830
Radeon HD 4830 Performance94%
Radeon HD 4830 is 6% slower than ATI Radeon HD 4770
Compare Detailed Specs