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
GRID M40
CORE STATE
GM107
VRAM
8 GB
CLOCK SPEED
—
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
Maxwell
PROCESS
28 nm
LAUNCH DATE
2016
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
GRID M40
Core Specs
Shading Units
640
384
-40.0%
Shaders
640
384
-40.0%
TMUs
40
32
-20.0%
ROPs
16
16
0.0%
Compute Units
10
—
Clocks
GPU Clock
1295 MHz
1033 MHz
Memory Clock
1500 MHz
6 Gbps effective
1300 MHz
5.2 Gbps effective
Memory
Memory Size
4 GB
8 GB
VRAM (MB)
4,096
8,192
+100.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
128 bit
Bandwidth
96.00 GB/s
83.20 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SMM)
L2 Cache
512 KB
2 MB
Performance
Pixel Rate
20.72 GPixel/s
16.53 GPixel/s
Texture Rate
51.80 GTexel/s
33.06 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
793.3 GFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
24.79 GFLOPS (1:32)
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
50 W
TDP (W)
50
50
0.0%
Suggested PSU
250 W
250 W
Power Connectors
None
—
Architecture
Architecture
GCN 4.0
Maxwell
GPU Name
Polaris 23
GM107
Generation
Polaris
(RX 600)
GRID
(Mx)
Process Size
14 nm
28 nm
Transistors
2,200 million
1,870 million
Die Size
103 mm²
148 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
12.6M / mm²
API Support
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.3
1.4
OpenCL
2.1
3.0
CUDA
—
5.0
Shader Model
6.7
6.7 (5.1)
Physical
Slot Width
Single-slot
Dual-slot
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
No outputs
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
—
Successor
Vega
—