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 630
CORE STATE
GF108
VRAM
1024 MB
CLOCK SPEED
—
TDP
65 W
BUS WIDTH
128 bit
ARCHITECTURE
Fermi
PROCESS
40 nm
LAUNCH DATE
2012
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
GT 630
Core Specs
Shading Units
640
96
-85.0%
Shaders
640
96
-85.0%
TMUs
40
16
-60.0%
ROPs
16
4
-75.0%
Compute Units
10
—
SM Count
—
2
Clocks
GPU Clock
1295 MHz
810 MHz
Shader Clock
—
1620 MHz
Memory Clock
1500 MHz
6 Gbps effective
900 MHz
1800 Mbps effective
Memory
Memory Size
4 GB
1024 MB
VRAM (MB)
4,096
1,024
-75.0%
Memory Type
GDDR5
DDR3
Memory Bus
128 bit
128 bit
Bandwidth
96.00 GB/s
28.80 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
3.240 GPixel/s
Texture Rate
51.80 GTexel/s
12.96 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
311.0 GFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
25.92 GFLOPS (1:12)
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
65 W
TDP (W)
50
65
+30.0%
Suggested PSU
250 W
250 W
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
Fermi
GPU Name
Polaris 23
GF108
Generation
Polaris
(RX 600)
GeForce 600
Process Size
14 nm
40 nm
Transistors
2,200 million
585 million
Die Size
103 mm²
116 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
5.0M / 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
Single-slot
Length
—
145 mm
5.7 inches
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
1x DVI1x HDMI 1.3a1x VGA
Bus Interface
PCIe 3.0 x8
PCIe 2.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
GeForce 500
Successor
Vega
GeForce 700