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 805A
CORE STATE
GK208
VRAM
1024 MB
CLOCK SPEED
758 MHz
TDP
15 W
BUS WIDTH
64 bit
ARCHITECTURE
Kepler 2.0
PROCESS
28 nm
LAUNCH DATE
2014
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
805A
Core Specs
Shading Units
640
192
-70.0%
Shaders
640
192
-70.0%
TMUs
40
16
-60.0%
ROPs
16
8
-50.0%
Compute Units
10
—
Clocks
Base Clock
—
719 MHz
Boost Clock
—
758 MHz
GPU Clock
1295 MHz
—
Memory Clock
1500 MHz
6 Gbps effective
1001 MHz
2 Gbps effective
Memory
Memory Size
4 GB
1024 MB
VRAM (MB)
4,096
1,024
-75.0%
Memory Type
GDDR5
DDR3
Memory Bus
128 bit
64 bit
Bandwidth
96.00 GB/s
16.02 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
512 KB
Performance
Pixel Rate
20.72 GPixel/s
6.064 GPixel/s
Texture Rate
51.80 GTexel/s
12.13 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
291.1 GFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
12.13 GFLOPS (1:24)
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
15 W
TDP (W)
50
15
-70.0%
Suggested PSU
250 W
—
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
Kepler 2.0
GPU Name
Polaris 23
GK208
Generation
Polaris
(RX 600)
GeForce 800A
Process Size
14 nm
28 nm
Transistors
2,200 million
1,020 million
Die Size
103 mm²
87 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
11.7M / mm²
API Support
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.3
1.2.175
OpenCL
2.1
3.0
CUDA
—
3.5
Shader Model
6.7
6.5 (5.1)
Physical
Slot Width
Single-slot
IGP
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
Portable Device Dependent
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
GeForce 700A
Successor
Vega
GeForce 900A