GPU Comparison
RADEON
AMD Radeon RX 640 OEM
CORE STATE
Polaris 23
VRAM
4 GB
CLOCK SPEED
—
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2020
VS
GEFORCE
GeForce GT 545 OEM
CORE STATE
GF116
VRAM
1024 MB
CLOCK SPEED
—
TDP
105 W
BUS WIDTH
128 bit
ARCHITECTURE
Fermi 2.0
PROCESS
40 nm
LAUNCH DATE
2011
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
GT 545 OEM
Core Specs
Shading Units
640
144
-77.5%
Shaders
640
144
-77.5%
TMUs
40
24
-40.0%
ROPs
16
16
0.0%
Compute Units
10
—
SM Count
—
3
Clocks
GPU Clock
1295 MHz
871 MHz
Shader Clock
—
1741 MHz
Memory Clock
1500 MHz
6 Gbps effective
1000 MHz
4 Gbps effective
Memory
Memory Size
4 GB
1024 MB
VRAM (MB)
4,096
1,024
-75.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
128 bit
Bandwidth
96.00 GB/s
64.00 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SM)
L2 Cache
512 KB
256 KB
Performance
Pixel Rate
20.72 GPixel/s
5.226 GPixel/s
Texture Rate
51.80 GTexel/s
20.90 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
501.4 GFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
41.78 GFLOPS (1:12)
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
105 W
TDP (W)
50
105
+110.0%
Suggested PSU
250 W
300 W
Power Connectors
None
1x 6-pin
Architecture
Architecture
GCN 4.0
Fermi 2.0
GPU Name
Polaris 23
GF116
Generation
Polaris
(RX 600)
GeForce 500
Process Size
14 nm
40 nm
Transistors
2,200 million
1,170 million
Die Size
103 mm²
238 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
4.9M / mm²
API Support
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.3
—
OpenCL
2.1
1.1
CUDA
—
2.1
Shader Model
6.7
5.1
Physical
Slot Width
Single-slot
Dual-slot
Length
—
210 mm
8.3 inches
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
2x DVI1x mini-HDMI 1.3a
Bus Interface
PCIe 3.0 x8
PCIe 2.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
GeForce 400
Successor
Vega
GeForce 600