Radeon RX 570 vs GeForce GT 640 OEM Rebrand
We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 570 and 1536MB VRAM GeForce GT 640 OEM Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 570 's Advantages
Released 5 years late
Boost Clock1244MHz
More VRAM (4GB vs 1536GB)
Larger VRAM bandwidth (224.0GB/s vs 38.40GB/s)
1904 additional rendering cores
GeForce GT 640 OEM Rebrand 's Advantages
Lower TDP (75W vs 150W)
Score
Benchmark
FP32 (float)
Radeon RX 570
+1127%
5095
GeForce GT 640 OEM Rebrand
415
Graphics Card
Apr 2017
Release Date
Apr 2012
Polaris
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1168 MHz
Base Clock
-
1244 MHz
Boost Clock
-
1750 MHz
Memory Clock
800 MHz
Memory
4GB
Memory Size
1536MB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
192bit
224.0GB/s
Bandwidth
38.40GB/s
Render Config
32
Compute Units
-
-
SM Count
3
2048
Shading Units
144
128
TMUs
24
32
ROPs
24
16 KB (per CU)
L1 Cache
64 KB (per SM)
2 MB
L2 Cache
384 KB
Theoretical Performance
39.81 GPixel/s
Pixel Rate
4.320 GPixel/s
159.2 GTexel/s
Texture Rate
17.28 GTexel/s
5.095 TFLOPS
FP16 (half)
-
5.095 TFLOPS
FP32 (float)
414.7 GFLOPS
318.5 GFLOPS
FP64 (double)
34.56 GFLOPS
Board Design
150W
TDP
75W
450 W
Suggested PSU
250 W
1x DVI
1x HDMI 2.0b
3x DisplayPort 1.4a
Outputs
2x DVI
1x mini-HDMI 1.3a
1x 6-pin
Power Connectors
None
Graphics Processor
Polaris 20
GPU Name
GF116
Polaris 20 XL
(215-0910052)
GPU Variant
GF116-150-A1
GCN 4.0
Architecture
Fermi 2.0
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
40 nm
5.7 billion
Transistors
1.17 billion
232 mm²
Die Size
238 mm²
Graphics Features
12 (12_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.1
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
2.1
6.4
Shader Model
5.1
